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I origionally entered your website via a web search query about one of the greatest scientific minds of the 20th Century, Dr. Richard Feynman. Looks like you're doing a great job trying to explain science and math and debunking the 'educRATS.' Thank you for the time and effort you've dedicated to this website! Sincerely! Bill Bryan Master Electrician II (Unlimited) 770-487-4305
William J. Bryan III
Peachtree City, GA USA - Wednesday, December 31, 2003 at 11:16:52 (PST)
Are there any members from Whidbey Island? I attended a meeting more than a year ago and really enjoyed it.
Shanti Mai
Langley , WA USA - Tuesday, December 30, 2003 at 13:39:31 (PST)
Very nice and useful website. Please visit my website. Happy New Year!!! :)
Webmaestro
Miami, FL USA - Tuesday, December 30, 2003 at 00:20:19 (PST)
I get the impression that our internal life histories are somewhat similar. Perhaps it has something to do with being born to intellectuals in the second half of the fifties, the combined influence of Willey Ley, Rocky and Bullwinkle, Isaac Asimov, The Trashmen, Kuda Bux, Mad magazine,Stanley G. Weinbaum, Superman Comics, Jules Fiefer, The Beatles, Guy Murchie, Robert Heinlein, Richard Halliburton, Edgar Rice Burroughs, Olaf Stapledon, Marcel Duchamp, The Amazing Randi, The Outer Limits, The Fantastic Four, Soupy Sales, Eric Frank Russell, Buggs Bunny, Max Ernst, Mission Impossible and (in my case) stacks and stacks and stacks of old jazz records, can be a potent soup. Say no more, I understand your condition
Seth Kallen Deitch
Cambridge, MA USA - Sunday, December 28, 2003 at 12:53:45 (PST)
I was visited by alians back in 1993 and wrote it down for about five years being in contact. Here is my story: http://jeeze1999.00sfcom mark
Mark
Redwood Valley , Calif USA - Sunday, December 28, 2003 at 07:22:43 (PST)
A Merry Christmas and a Happy New Year!
Pieter
Amsterdam, N.H. Netherlands - Tuesday, December 23, 2003 at 09:00:33 (PST)
Ok-this question may not perfectly fit into the guestbook on this site, but I can't think of any other place to try. I would like to know anyones thoughts on how best to get a "natural" suntan, outdoors, in winter in New York. Its just one of these ridiculous things i've thought about since I was younger. I would love to go to the beach in winter and get a normal tan, not having to go down to florida, but right here on the Long Island coast! My thoughts revolved around lining two umbrellas with aluminum foil and simply facing the sun where the light would reflect on my face. Any other creative suggestions would be welcome. Also, if anyone knows how I could measure the UV intensity increase would also be beneficial. Thanks for your help.
Danny
NY USA - Monday, December 22, 2003 at 09:28:09 (PST)
Sometimes things are so obvious that they get lost within the maze of investigation. The Taos Hum, and similar aural disturbances are an example. The hum is likened to the sound of a distant diesel engine, and considered to be in the range of 30 to 100 cycles. Logical thinking shows the most obvious source is the prevalent 60 cycle electromagnetic frequency used throught the US to operate all AC curcuits. [Don't make assumptions without first learning all about the issues. Beware of making assumptions that you're intellectually superior to the scientists who tried to track down the problem. 60Hz noise as well as VLF sound waves were was rejected as explanations very early in the debate. The hum was measured (by frequency matching using headphones) to vary widely in frequency, with 72Hz a typical value, but with some FM component which prevented using human ears as phase-sensitive direction finders. The U. of NM performed audiology testing on a large number of hum-hearers and found that their low-freq sensitivity was perfectly normal. Microphones pick up low-freq sound just fine, and they show that no sound is present in quiet locations, and even a specially-designed VLF microphone showed nothing, as did VLF radio detectors. During state-wide power blackouts the hum continued unabated, so it wasn't caused by industrial noise, but they already knew that sound wasn't the cause. And some of the U. of NM scientists could hear the hum themselves, so this wasn't a case of disbelieving researchers who carry the prior assumption that a phenomenon doesn't exist. -billb]
Standing within a power generating station, the hum is similar to that of a deisel train engine, surprised? The next obvious clue is that some individuals have sensitivities that many others do not. It's well documented that some folks can hear beyond the range of most others, and can hear sound waves that are higher than those most others can hear, and so why not lower as well? Then it's also known that low frequency sound waves can be felt by the body, as well as heard by the ear. Standing in front of a booming loudspeaker, one can sense the push of the air waves. The nature of sound is such that it has similar properties to the atmosphere around us, so why not similar properties to weather as well, or at least effected by weather and other natural conditions? To me, the search is not for the fact that a 60 cycle hum exists, but for how it is amplified at certain locations such as Taos, and how certain individuals come to sense it, while others do not. Seems more than obvious, though not empirical.

Rick
Los Angeles, CA USA - Sunday, December 21, 2003 at 10:10:07 (PST)
hey bill. I really enjoyed reading about and trying these holograms out. I was wondering though. would it be possible perhaps to create animated versions of these holograms. I mean simple ones...for eg. Because the scratches are curves, when you tilt the plane horizontaly, the highlights "float" along them. If you perhaps drew a face the way you described but then drew the eyes of the face by moving your picture to the side of the plate (As apposed to the bottom) then when you tilted the plate up and down, the eyes would move up and down, but because the rest of the face was done horizontally it would not move? Would this work? Im not that good at making these holograms so i havent tried.
joe
USA - Sunday, December 14, 2003 at 02:53:46 (PST)
GREAT SITE and thanks for the info on voltage it has been so hard for me to find.
Murray Willis
Australia - Friday, December 12, 2003 at 20:58:01 (PST)
My son expressed an interest in making a magnetic train for his gr. 7 science project. Found your simple maglev train plan and it will be a great source for him. Much appreciated
J Burger
Sudbury, Ont. Canada - Friday, December 12, 2003 at 01:44:25 (PST)
Do any of you know anything about the 10 year old Canadian kid who built an electron microscope about 25-30 years ago? I am contemplating such a project, and will appreciate any related info. Thanks, Don.
Don Hartley
yellville, AR USA - Tuesday, December 09, 2003 at 11:00:10 (PST)
Guys, are you sure it s the best script for guestbook? Why do you use it
Julia <Julia>
Urypinsk, MO Russia - Sunday, December 07, 2003 at 18:22:18 (PST)
Really nice site
Julia <Julia>
Urypinsk, MO Russia - Sunday, December 07, 2003 at 12:14:52 (PST)
why do children have the misconception that the bulb closest to the battery will be the brightest?
christina connell
manchester, england - Saturday, December 06, 2003 at 11:37:42 (PST)
Nifty site! I've bookmarked it, so I'll be back. I've tried the permenant magnet maglev with the magnets just on the bottom. Has anyone tried placing magnets on the sides also in order to 'suspend' the 'train'? Or would that be too difficult?
Andrew Laverdiere
San Leandro, ca USA - Tuesday, December 02, 2003 at 17:55:24 (PST)
You would do well to add my site to your list. Includes RF, analog, and microcontroller (AVR) including a mix of the three. Your site is a wonderful resource. Thank you for keeping it up to date. Dick
Dick Cappels
Bankok, Thailand - Tuesday, December 02, 2003 at 16:46:04 (PST)
I've always been an aggressive, offensive driver, and I always get frustrated with people who drive over-cautiously (in other words, refusing to see any "get-ahead" possibilities in traffic, such as switching lanes). However, I may have to rethink some of my driving philosophy. While I still believe that it is important to drive smart (e.g., being aware of when the light turns green, anticipating what the cars around you might do, etc.), I may have to rethink some of my aggressive tendencies. You have some interesting insights, despite what that traffic commissioner wrote to you in the email. ~Jenn
Jenn
Champaign, IL USA - Tuesday, November 25, 2003 at 08:28:14 (PST)
I just typed in www.amscicom (dropping the 2nd 'a') and came up with one of those "site for sale" pages. I about had apoplexy before I saw my mistake. It made me realize how I think of your website as a monolithic, timeless institution of the internet. I've been visiting since sometime in 1995 and your site's disappearance would be a calamity :-) Long live Science Hobbyist!
Sam
NC USA - Sunday, November 23, 2003 at 18:21:03 (PST)
Hi Bill, Thanx for the great ideas in here. I tried out the electrostatic motor 4m pop bottles for my school's Science fair n happy to say that the project bagged first for Physics in Senior's category. Thanx a lot!!! regards
Surya
Kerala India - Sunday, November 23, 2003 at 04:17:16 (PST)
Hello, I was looking at your site and found it very interesting. I am not looking for free advertisement as you state above. I do have a chemistry book, a chemistry game and a chemistry poster that is for sell,but please don't think that is my purpose for signing your guestpage. I have free sites that I have developed which has some really neat chemistry animations. They explain atoms and molecules and even electrochemistry/electrolysis. Please look at these animation, which are free, and maybe you might want to share them with your visitors. http://www.b-dockpress.8m.com/favorite_links.html Scroll down this page to find the links to the animations. Sorry that the page has advertisement for the chemistry poster because I know that you don't want to advertise products. But you must check out the animations that I put on the web. They do a great job of teaching chemistry concepts. And the animations are free! Gerald Bauldock
Gerald Bauldock
Willingboro, NJ USA - Saturday, November 22, 2003 at 12:05:36 (PST)
Truley cool site, like all that scarey science stuff. I have to tell you about a strange dream i had :-) I had a strange dream the other night about a dragon building a relatively simple device that may have generated fusion by what appears to be some sort of catalytic action by palladium.

In the dream the device was very simple built out of 2 strong neodymium magnets with opposing poles facing each other. Then between them was a small gap where a magnetic coil was placed. This coil was tuned in resonance with a small value capacitor much as a Tesla coil would be. There was a medium power transformer that looked much like one in a microwave oven transformer being rectified and fed to a smallish capacitor that was fed via adjustable spark gap to the resonance coil.

Then were several different solutions that were placed in the coil, first was tap water, this did nothing at all, then was placed distilled water, and nothing happened, pure deuterium depleted water, this did nothing, next was placed pure deuterium oxide, still nothing.

But that did not discourage the dragon conducting this experiment, it was found that palladium could be made into a dispersion of very small particles nary 10-40 angstroms wide in the water, a colloid in the same way newagers make silver solutions to cure all that ails them. Then was tried pure distilled water colloid and interestingly there were bluish sparks in it when the device was turned on, the dragon found this interesting. Then was tried deuterium depleted water this did the same but not as intense, and the dragon was rather intrigued. the dragon then got out her trusty Ludlum meter with the scint probe and much to delight was detected rather strong gammas each time it flashed, they were much stronger with the normal water.

There was yet one more thing to try, a mixture of palladium and deuterium oxide was prepared. The device was rigged to a LONG extension cord outside the dragons laire with a remote control, yes sometimes the dragon is a little overkill on safety, but then again the gammas she noted may have been from something nuclear, but then again could have been simple EM interference. She didn't want to take any chances! When was pressed the button on the remote there was slight flashes as expected but it was obvious that something was not quite right so she went to the device and adjusted the coil a bit, the little tuning lug was a tad loose. Then she went to a safe place and hit the button once more, it was as if lightning had struck the force was incredible and it was like a football player just kicked her in the chest. It greatly surprised the dragon, after it was over all that was left of the neat gizmo was a few bits of scrap metal which were mildly radioactive according to the Geiger probe for she-drake's meter and a nice 3 foot wide by foot deep crater. Thankfully the device is very easy to make from stuff found at the local junkyard and the dragon told me she may make another one to take to hacker convention in the near future, but the words spoken by Oppenheimer from an ancient Sanskrit text still haunted her, "for what shall become of me in your presence? It would be as a thousand suns in but and instant and all shall be burned till nothing remains" and "I have become death, the shatterer of worlds"

The dragon spoke again with eyes that glowed with a strange golden light, "Whatever is created one day will be destroyed, with destruction comes a chance for rebirth a chance to begin anew. Fear not what we have created for when the time has come the discovery will be known to all. All delusions of security and doubt shall disappear like dew to the sunrise and be replaced first with fear but then a desire to live life to the fullest and great confidence in faith. What we have created is that which can cause both unimaginable horrors and amazing benefits to all of dragonkind. Do not worry for this device is but a rope, a tool. It is in the minds of dragonkind to choose wither to use it to pull ourselves to safety or to hang. In the end all will work out for the best. Do not be afraid, if you so wish go forth and try these experiments. Then a cold breeze blew over and then it was over I awoke covered in sweat and felt rather strange after that and haven't slept since. Wierd dream huh?
chris
milwauke, WI USA - Friday, November 21, 2003 at 03:03:08 (PST)


I'm trying to find plastic optical fiber and it's not easy. I want 2-3MM and it seems pretty expensive and only sold in bulk. Where can I get 20-30 feet of it, instead of 200 yards? This is a great site! Thanks for the links.
Pat
Newburgh, NY USA - Tuesday, November 18, 2003 at 09:43:53 (PST)
Great writeup on the infrared goggle experiment. I've been kicking around an idea for a couple of years now which is somewhat related to the project. It occurs to me that if one were to identify a hydrophobic pigment that passed the visible spectrum relatively unchanged but that completely blocked the IR wavelengths, you could create a million-dollar product. Simply dissolve the pigment in clear-coat lacquer or acrylic and spray a coat onto the license tags on any vehicle. That vehicle has now become a "stealth" vehicle to the new laser radar rigs that our local constabulary has become fond of using to trap speeders. The infrared laser beam must be bounced from the vehicle's license tag for the operator to get any useful return beam. Here in the USA at least, all license tags are printed on a layer of "Scotchbrite", basically a clear flexible plastic sheet containing billions of spherical glass beads in the micron-size range. Each bead acts as a corner reflector and returns almost all visible and IR energy impinging on it back to the point from which it originated. Skeptical? Go outside with a cheap visible red laser pointer and shine it on a vehicle tag a mile or two away. The strength of the reflected beam will dazzle you, even in full sunlight. Now imagine being able to prevent this from happening simply by spraying your tags with a can of (apparently) clear coat acrylic. Frank Roberts KLRU-TV Austin, Texas
Frank Roberts
Austin, Tx USA - Friday, November 14, 2003 at 12:41:32 (PST)
Hi Bill,
I read with interest your writeup on the microscale shorted homopolar generator experiment. In it you suggested silver plating the copper pipe caps so that they could me wetted with mercury. I offer that this silver plating step is not necessary as copper can easily be wetted directly. Sometimes the omnipresent oxide coating on metallic copper prevents this from being done easily. To overcome this, simply apply an aqueous solution of any soluble mercury salt to the bare copper. Mercury II nitrate or mercury II chloride will work just fine. Upon application, a simple replacement reaction occurs and the mercury salt is reduced to metallic mercury at the expense of the outer few atoms of metallic copper. The result is a slick, shiny film of copper-mercury amalgum. Hope this helps. Frank

Frank Roberts
USA - Friday, November 14, 2003 at 10:29:36 (PST)
This is the best place on the net! It is very informative, enlightning, and just delightful. From scratch holograms to Tesla Coils to rocket science, I just can't get enough. Fabulous!
Samual Trane
Dallas, Tx USA - Wednesday, November 12, 2003 at 13:02:00 (PST)
I'm a 48 year old mum, and in the last ten years or so have been really keen to learn about all kinds of science, esp. astronomy and physics. I chose languages at school which I loved, but wasn't allowed to do science as well. I now have taught myself a lot from books, tv and the web, incl. your site, and have infected one husband, three sons, and now one 3 year old granddaughter who knows the stars move in the sky! ;) When she can read I'll show her your website, will you still be here in ten years?!!
Fiona
Pitlochry, Scotland - Tuesday, November 11, 2003 at 15:08:45 (PST)
I hate you and the rest of your people who makes this stuff, i think its the dumbest thing in the world. Whoever came up with an invention like this must be really really desperate!!! hahaha... diss!
Khoa
Apple Valley, MN USA - Monday, November 10, 2003 at 07:01:53 (PST)
Thank you! For the ideal explanation on "what is electricity?" It untangled the confusion I had before. I really enjoyed reading your article. Keep up the good work.
Antonio C. Mafnas
Saipan, MP Mariana Islands - Wednesday, October 29, 2003 at 20:03:11 (PST)
I wanted to let people know about a one man play about Tesla that will be presented up in Bellingham at the Idiom Theater 1418 Cornwall Ave (360) 201-5464 on two weekends in November 13,14,15 and 20,21,22 at 8pm 8$ This is a play written by local playwright J.Michael Newlight and performed by Frank Tabbita. I talked a bit with Frank and he said it leaned toward Tesla's eccentricities near the end of his life. Guess I should just copy this to the guest book but I saw the article in the Times and kept it. I thought maybe it could be mentioned at a meeting or newsletter. Thanks - RDB
Eric Brown
Bellingham, WA USA - Thursday, October 23, 2003 at 21:48:26 (PDT)
I just found this article, and I’m passing this around, as it should be included wherever free energy is discussed.
http://cnews.canoe.ca/CNEWS/Canada/2003/10/19/230816-cp.html Chris Houghton

Chris Houghton
nj USA - Monday, October 20, 2003 at 10:30:23 (PDT)
Hi, Is there any technical article on the internet to explain "how transistors really work" (giving precise values and characteristics).I perfectly understood the "voltage-controlled concept" on your page, but my science lecturer declared your explanation as "highly non-technical".So please help. My Email kolloldas at yahoo.co.in
Kollol Das
Bangalore, KA India - Saturday, October 18, 2003 at 07:46:30 (PDT)
Hi Bill, I loved your site. It made me want to design a million volt water generator. Just one minor point your disciption of how an FET works. Its does require energy to establish an electrostatic field but your are correct that once established no power is consumed in the control.

Your static detector: I have made a similar static detector. The problem is it is easily damged by too large a voltage and will only detect one polarity. The polarity problem could be overcome by doubling the circuit with a P type and N type or enhancment and depletion type fets. The damage problem is more difficult as I do not know of a way to protect them and still maintain the high input impedance. Its the high imedance that gives the detector it high sensativity. Bob
Robert Jones
Orlando, FL USA - Friday, October 17, 2003 at 15:44:28 (PDT)


Hello! Your site looks interesting. I am not a totally new to web development. I have some skills, but anyway I need to learn something new, could you please give me some advice.
al <asd@msn.com>
Kiev, NY Ukraine - Wednesday, October 15, 2003 at 12:18:14 (PDT)
Looking at the magnetic levitation page, specifically the magnetic cradle part, I was wondering if power consumption could be reduced by using rare earth magnets as the cores for the coils (knowing that only one pole would ever go over a given area).

Also looking at this part, couldn't you compensate for the phase lead created by the inductor by adding a capacitive section to the cricuit, thereby adding a phase lag?

And as long as you don't have a total of a 90deg phase shift, shouldn't the system be stable?
Brendan
BC Canada - Wednesday, October 15, 2003 at 00:21:42 (PDT)


I ust sent a email to edwards afb asking if there was a monument to captain murphy the originator of murphy's law.sadly to say there isn't.
randall
barstow, ca. USA - Tuesday, October 14, 2003 at 18:51:53 (PDT)
Greydon Moore's awesome astronomy enhancements, as well as his unique visions and ideas can now be found at http://www.visitastronomycom.
jdoe at doe.com
Pittsburgh, PA USA - Tuesday, October 14, 2003 at 14:03:46 (PDT)
Yours is the most lucid explanation of basic electricity concepts that I've ever encountered. Thanks a million. I was cruising the Internet for a half-hour before I finally came upon your site. It's terrific.
Paul Monsour
New York, NY USA - Saturday, October 11, 2003 at 08:04:43 (PDT)
Let's change the links. I have the same site in native language. What do you think?
Chan Hu <chanhu@nadin.cn>
Pekin, CH China - Wednesday, October 08, 2003 at 17:27:26 (PDT)
pls guyz koop off ooooooooooooooooooooooooooooooooooh here
mugu maga
cotonou, cotonou benin - Wednesday, October 08, 2003 at 11:02:36 (PDT)
Do you allow advertising here?
Stamina-Rx <staminarx@yahooka.com>
Phila, PA USA - Sunday, October 05, 2003 at 19:48:05 (PDT)
Erm great site, Brilliant experiments. But you have permanately screwed my microwave you godamn hippies. Z)
Z)E)R)0
Alabama (TrailerVille), UFG - Saturday, October 04, 2003 at 20:05:18 (PDT)
Hi! Anyway, our cactuses bigger than yours :) I'm kidding :) really nice sie. It's sharpener than cactus's needle :)
FYO <fyo@selfish.com>
Angor, AZ USA - Friday, October 03, 2003 at 04:15:31 (PDT)
Welcome in the Russian UFO Research Union.
Lorian
Moscow, Russian federation. - Thursday, October 02, 2003 at 16:01:32 (PDT)
Re traffic waves, what an interesting idea! I'm a new, though older driver and I'm constantly amazed by the insanity of the experienced drivers around me. I know from experience that local "interstate"-type roads that switch from single lane to dual lane design suffer constantly from bunching at the points of coallescence, and everyone puts their foot down at the start of a dual lane stage, to be slowed again later. This is obviously inefficient when you analyse it, but getting drivers to actually restrict their speed in any sense is all but impossible. It's the people who observe speed limits that seem the odd ones out. Thanks for such an interesting site.
Andrew Scaife, AKA s-meister
York, UK - Thursday, October 02, 2003 at 05:54:18 (PDT)
this was a great site for an erinchment.yay
jeano
USA - Wednesday, October 01, 2003 at 10:25:35 (PDT)
A friend put a link to your myths of science page on a mailing list. I liked it so much I've looked around and will mark your site a favorite to come back to later. Thank you for some fascinating and enlightening ideas, I look forward to seeing more.
Ellen Lewit
Atlanta, GA USA - Monday, September 29, 2003 at 23:23:22 (PDT)
My frien told me that citizan of your country do not like japanize. I do not trust him. Is it possible?
ters <terselanio@yahoo.com>
Kioto, KI Japan - Sunday, September 28, 2003 at 16:03:54 (PDT)
I an from Russia and have been studying English . Textbook are bored and I try to read the sites. Your sites is very pleasant. I glad that I can understand it :)
Tersaakova <tersaakova@mail.ru>
Philapelphia, PA USA - Sunday, September 28, 2003 at 07:18:17 (PDT)
Is this guest book script convinient? It's not pretty nice, is it? Why do you pick it?
Huy v Gavne <hvgavne@admire.com>
Uryupinsk, NA Kazakhstan - Saturday, September 27, 2003 at 13:35:56 (PDT)
Just wondering if anyone knows where I can obtain an assembled VandeGraaff generator (small size - not museum size). Tried Edmunds sacientific and Sharper Image, etc. but no luck. Any suggestions??
Bill Parry
Durham, NC USA - Wednesday, September 24, 2003 at 11:27:43 (PDT)
Nice site , so resourcefull visit our site which is the official site of Notre Dame Science Club http://ndscbd.org and my offical site http://we4techcom
Hasan
Dhaka, Dhaka Bangladesh - Tuesday, September 23, 2003 at 13:33:56 (PDT)
Hi all, I have tried in vain to find several circuit designs to interface a petrol engines sensors, temperature tachometer, voltage, etc to an a/d interface on a Windows based Notebook.
I have not been able to find any sites or circuits that are aimed at building analog engine interfaces, would you have any sugggestions? Regards Dereck

Dereck
Melbourne , Vic Australia - Tuesday, September 23, 2003 at 05:35:07 (PDT)
I booked marked you!!!! I will be back!!!! I am a 53 year old who can't stop asking why,where,how, this site tells me in eazy to understand language what I want to know. I think it is the greatist.
Thomas A. Barger
Louisvile, Ky USA - Saturday, September 20, 2003 at 16:37:35 (PDT)
We, a group of scientists and engineers, who after much amusement and apathy about reports of the general public being bombarded with damaging waves of signals and radio waves, reluctantly decided to investigate this phenomen.

We have to tell you that we regarded you as a bunch of lunatics who were off your rockers. Only after seeing so much evidence from hundreds of web sites did we decide to investigate.

To avoid sanctions and revenge, we agreed to certain mutual restraints; ie: We can not divulge any information about what we discovered in our investigation. However, we can tell you that the voices, zapps, humms, vibrations,etc will discontinue on or about 9-22-2003 at 23:59 O'clock.

We can say that the tremendous amount of information via word of mouth, internet sites and newspaper articles created a tide of curiousity that could no longer be ignored. That is to say, the "cat is out of the bag."

Obviously, our identities can not be revealed, nor can we give you more information, but,,,watch for recently declassified documents which you can get through the "Freedom of Information Act." The meat of the information you are looking for will, for obvious reasons, be blacked out. However, be assured your problems are going away as we said earlier.

Some of you, especially those of you who have been affected over a long period of time, may suffer residual affects of your symptoms for as long as a couple of months. Be patient, your symptoms will disappear!!!

Our main concern is that you not regard us as the lunatics we thought you were before we discovered the truth.

Since there are hundreds of web sites exposing this phenomen, it is imposible for us to contact them all. We


science engineers
washington, dc USA - Friday, September 19, 2003 at 22:56:42 (PDT)


I would like to let you know we have just visited your website. Very nice site.
Alex
Denir, ca USA - Friday, September 19, 2003 at 00:05:18 (PDT)
fan-freakin'-tastic website! This is like candy!
kr
USA - Tuesday, September 16, 2003 at 19:59:59 (PDT)
I am 45. Was on Guam as a child and started school there. Thought I might recognize you from your picture on the web. But that was a long time ago and I don't remember anyone with a beard. -Ken
Ken
Ellensburg, WA USA - Saturday, September 13, 2003 at 20:46:52 (PDT)
I LOVE SCIENCE! I LOVE SCIENCE!I LOVE SCIENCE!
Keira
Somewhere, IDUNNO Canada - Thursday, September 11, 2003 at 18:45:19 (PDT)
They say that the generator works within a sphere! my question is does it operate within any other form other than this? (ex. flat surface)
Michalis makris
symi, greece - Thursday, September 11, 2003 at 05:59:10 (PDT)
Thanks for the great articles and the clear explaination of a complex and confusing subject
Elger
MO USA - Thursday, September 11, 2003 at 05:44:48 (PDT)
I was wondering if you had any free materials for supporting early childhood/primary level science learing.
Susanna Trice sctirce at ilstu.edu
Monticello, Il USA - Friday, September 05, 2003 at 08:53:51 (PDT)
i would like to say that slow drivers are the wost drivers in the world people if you dont have to be any were dont go any were tell you have a plan of were your going your a pain to todays driving your lucky that nothing happins to you becuse of it get off your dam phone put down your dam food and and just drive its not hard people and it your in the Usa were we drive the speed limit and if your driving 20 miles under you are a really bad driver and you sould give up driveing thank you comms please to me
Joe
Everwere , Usa USA - Wednesday, September 03, 2003 at 19:52:26 (PDT)
Great collection of comments. However, charges really are invisible, in fact they are so small that they are considered infinitesimal in size (much too small to see). It is the particles that contain charge that can be large. Also, charges are not silver colored. Color is the result of photon wavelength (or energy) and photons do not have a charge.
Peter
Mt. View, CA USA - Friday, August 29, 2003 at 23:36:52 (PDT)
I found this site very intersting. I was able to remove some some of my misconceptions and was able to get new ideas

- Friday, August 29, 2003 at 08:02:46 (PDT)
Excellent site! Keep up the great work.
Canada Diamonds
Vancouver, BC Canada - Wednesday, August 27, 2003 at 18:54:39 (PDT)
i love science!
Amberly
Bryan, TX USA - Tuesday, August 26, 2003 at 18:32:15 (PDT)
I was playing around with my nightvision scope in a dark room and looking at myself in the mirror. The scope has an infrared illuminator attached to it that is very bright when seen through the scope (it is only a faint red glow with the naked eye), so I put my hand in front of the illuminator to avoid damaging the scope from the direct IR, and the IR went through my hand! I even put the illuminator up to my wrist and I could see (through the scope) the IR shining through to the other side of my wrist. I couldn't see any bones or anything, but I could see my veins. I slid the illuminator further up my arm and I can still see the IR going through!

p.s.--I read the thing about the IR goggles and I am wondering, is it really infrared that you see through the goggles, or is it just visible light that leaks through the filter? Because visible light extends to about 750nm not just 700nm.
MK
USA - Tuesday, August 26, 2003 at 06:07:40 (PDT)


In reference to the hum that everyone is hearing..suppose that it's coming from outside sources not related to anything from this earth but from the universe? Your thought please!
Abel
USA - Tuesday, August 26, 2003 at 04:41:22 (PDT)
Stumbled in looking for a little EMP info to help my big brother out as he has gone electronics crazy, and left with a smile on my face. Informative and entertaining, keep up the great work.
CL Peters
Cambridgeshire, n/a UK - Sunday, August 24, 2003 at 13:45:20 (PDT)
Greetings, I am a high school student and webmaster of sciencehelp.netfirmscom. I am also a big fan of your very informative and useful site so I hope you can post a link to my website: Jerry's Science Project Consulting. I believe it will be of great use and value to many of your visitors since we provide quality science project help and content for students by students at-cost, the only such service available. I will gladly feature your site on mine in return. Thanks for your time and consideration,

Best regards, Jerry Guo jerryguo at mad.scientistcom P.s. All our services are nonprofit, the site is a work in progress.
Jerry Guo
Greer, SC USA - Wednesday, August 20, 2003 at 21:07:41 (PDT)


great site, congratulation.
kevin
USA - Wednesday, August 20, 2003 at 17:01:37 (PDT)
Your main page misspells "Nikola." It's great to find "Explanations" (my goal), but your photos need captions with measurements. I have no idea what I'm looking at.
Patrick D. Shannon
Hyattsville , MD USA - Wednesday, August 20, 2003 at 14:50:19 (PDT)
Please forgive however, I am DESPERATELY searching for Todd R Knudtson. He and I lost touch and I need his services ASAP. Please know if this weren't so scary/serious, my situation, I would never bother you here. If anyone knows how to reach Todd...please pass message and give hime my telephone # 949 859-9865. Todd and I were a couple many moons ago. I am currently being harrassed/terrorized by young druggy/speed neighbors and am going to give up my home to get out. I need to speak with Todd as I trust his expertise regarding construction and my home is being damaged everyday. Thank you for your consideration. I so appreciate any help. Cynthia Montgomery
Cynthia Montgomery
Lake Forest, CA USA - Wednesday, August 20, 2003 at 00:57:56 (PDT)
so far i've read a few things you've written - like why the sky is blue and all your opinions about electricity and I'm unsure why people seem to think you know what you're talking about. The sky thing was absurd and the electricity stuff was full of so many gaps in logic and understanding of basic physics I can't even begin. Anyway - very funny stuff. Thanks.
chip
new york, ny USA - Saturday, August 16, 2003 at 22:53:13 (PDT)
well done site. greetings from germany
Kredit ohne Schufa
germany - Friday, August 15, 2003 at 01:35:05 (PDT)
The journal Nature thinks that my discovery that the periodicity of the Atomic Elements is octahedral is too specific and therefore not suitable to be reported in their journal. The discovery shows the atoms, their shapes and how they join. Its implications are universal.
Robert Whitby
Baltimore, MD USA - Thursday, August 14, 2003 at 12:56:06 (PDT)
Thanks for the interesting ovierview at the hand drawn holograms. I like it much. Best Regards Tina
Tina
USA - Wednesday, August 13, 2003 at 04:24:54 (PDT)
I was looking at the Vandegraff generator sphere construction methods (looking for info on epoxy mache construction) and a thought struck me. Recently, I read an article on the web about restoring gilded picture frames. The guy used epoxy to attach the gilding. He let a thin coat of (30min. ?) - slow epoxy set to a firm but tacky state and then applied the gold leaf. Maybe this method could be effective for applying aluminum foil burnished downwith a rubber roller? I found the site using google. "epoxy gilding frames" as a search criteria should get you there, I hope! Hope this is useful to someone.
John LeBlanc
Moncton, NB Canada - Saturday, August 09, 2003 at 08:25:08 (PDT)
While I have observed every phenomenon you state in your site, I never documented them to the degree you did. Great site! However, I must state that you CAN affect the evaporation rate of a congestion wave - simply watch the car in front of the car in front of you. When THAT car accelerates out of the congestion wave, then you do also. The net effect is that you and the car immediately in front of you will accelerate simultaneously, which speeds the evaporation of the congestion wave (albeit a small amount). This method I try to employ with an obvious eye towards expecting the car immediately in front of me to brake for some (unknown) reason. A small congestion wave is vastly preferable to widespread gridlock caused by an accident =) rthinds at yahoo dot com
A Denver Commuter
Denver, CO USA - Friday, August 08, 2003 at 09:01:17 (PDT)
with the "INFINITELY LARGE SOLAR FURNACE" could you have a solar furnace with 1" mirrors say 20'? or would that go over the max. focal length, since from the side to the middle is 10' thanks
Tycko franklin
Yakima, WA USA - Thursday, August 07, 2003 at 12:01:33 (PDT)
It's a very interesting site. Thanks a lot.
Serg
USA - Thursday, August 07, 2003 at 04:38:12 (PDT)
interesting site... You may be interesting in checking out Space Mixing Theory at the above url.
TMANZ
USA - Wednesday, August 06, 2003 at 01:17:49 (PDT)
We've just started a new site about science for middle school kids. Please check it out and recommend it to other home schoolers. Thanks.
Julie Miller
Washington, DC USA - Monday, August 04, 2003 at 14:14:52 (PDT)
Enjoyed reading your site, just passing by and saw your site. really nice!
Joseph G Rajkowski of online casinos
US - Monday, August 04, 2003 at 04:29:45 (PDT)
I really loved the 'misconceptions spread by textbooks' section. The elaborations prove really insightfull.
Kurt Moerman
Belgium - Sunday, August 03, 2003 at 20:34:10 (PDT)
Another potential source of parts, especially HV "instrument" transformers, "pole pigs", huge High Voltage caps and the like is Austin International. They sell all types of suplus electrical equipment for the large power utility companies on consignment. They claim to the the world's largest surplus dealer, and I am inclined to believe it. Check 'em out at http://www.austinintl.com/ or call (803) 628-0035 and see if you can get their monthly newspaper with the specials - The Electrical Connector.
Dick Linn
Richmond, VA USA - Sunday, August 03, 2003 at 11:11:10 (PDT)
D.O.E. says this device, this theory, for fixing the LN2000 with steam kicker will not work. Examine this site material, e-mail me from Home page link.
Marshall Riley
Roanoke, VA USA - Saturday, August 02, 2003 at 22:37:29 (PDT)
Greeting from Russia :) Do you want to exchange the links? You made Pretty nice site .
Pgprint <pgprint@mail.ru>
Moscow, MU Russia - Tuesday, July 29, 2003 at 15:36:08 (PDT)
I discovered your site in 1998 or 1999 and I ahve always appreciated it. I try to visit and read as much as possible but htere is so much information and links it is overwhelming. THe IR goggles and Coold fusion are my favorite parts! Keep it up! You are a priceless asset to the information superhighway!!!
Jason
Indianapolis, IN USA - Monday, July 21, 2003 at 19:31:41 (PDT)
Has anyone read "The Hunt for Zero Point", by Nick Cook, the aviation editor for Jane's Defence Weekly? Regarding torsion fields and the theoretical consequences of their interaction with spacetime, Cook asserts that Austrian inventor Viktor Schauberger--while working for the Nazi SS during World War II--stumbled upon torsion fields as a means to create an anti-gravity effect. Cook further asserts that persuasive documentation at least suggests that the effect was utilized in revolutionary aircraft design experiments. While all of this might easily be dismissed as just another of the oft-told tales about German Wonder Weapons, Cook insists that this one may have merit. Comments anyone? I may be emailed at r.l.hastings at worldnet.att.net
Robert Hastings
Placitas, NM USA - Monday, July 21, 2003 at 15:07:48 (PDT)
Very informative. I love the wierd science section. My son and I like to do science experiments. Thanks for all the great information.
tK
Chicago, Il USA - Saturday, July 19, 2003 at 14:04:28 (PDT)
I have the Unified Field Theory of Rotational Energy Physics on disk. MS word, pdf or word zipped, would you like to post it on your site?? It has a model of the gravitional field that gives insite into how anti gravity is made. tomkar at highstream.net
tom jachlewski
Pauline, S C USA - Friday, July 18, 2003 at 17:37:50 (PDT)
I have the Unified Field Theory of Rotational Energy Physics on disk. MS word, pdf or word zipped, would you like to post it on your site?? It has a model of the gravitional field that gives insite into how anti gravity is made.
tom jachlewski
Pauline, S C USA - Friday, July 18, 2003 at 17:37:00 (PDT)
On the wing-lift generation 'battle' (Bernoulli-vs-Newton in a 10-round cage-match), I'd like to throw my article into the ring: http://travel.howstuffworks.com/airplane2.htm Great Site! Thanks, -Brian Adkins
Brian Adkins
NC USA - Friday, July 18, 2003 at 06:57:50 (PDT)
NEW GERMAN BALL LIGHTNING HOMEPAGE URL ... Dear Bill Beaty, dear ball lightning fans, the URL of my German homepage has been changed. Please set the link Kugelblitz Page(German) on amasci.com/tesla/ballgtn.html to http://inatura.at/wissen/gem_9548.shtm Thanks!
Dr.Alexander Keul
Salzburg, Austria, Europe - Friday, July 18, 2003 at 04:22:02 (PDT)
I would like to make a Vandergraaff Machine. I have an electric motor, (not sure how strong it is off the top of my head, but it is fairly heavy duty). I can mount it on a board and put another pulley on the other end of the board. The electric motor has a metal pulley, (not sure what the metals are that compose it). What kind of rubber belt should I get? Maybe a bicycle tube? What kind of pulley should be on the other end? What should I use for the needles? How far should the needles be from the belt? Should the needles be held in place or should they be held by hand, (I assume they need some type of rubber housing if held by hand). This sounds like a really neat experiment, but I am not a physicist (sp), so I need some direction. Thanks fkeough at hotmailcom
Farrell Keough
Frederick, MD USA - Thursday, July 17, 2003 at 19:26:11 (PDT)
I would like to make a Vandergraaff Machine. I have an electric motor, (not sure how strong it is off the top of my head, but it is fairly heavy duty). I can mount it on a board and put another pulley on the other end of the board. The electric motor has a metal pulley, (not sure what the metals are that compose it). What kind of rubber belt should I get? Maybe a bicycle tube? What kind of pulley should be on the other end? What should I use for the needles? How far should the needles be from the belt? Should the needles be held in place or should they be held by hand, (I assume they need some type of rubber housing if held by hand). This sounds like a really neat experiment, but I am not a physicist (sp), so I need some direction. Thanks fkeough at hotmailcom
Farrell Keough
Frederick, MD USA - Thursday, July 17, 2003 at 19:25:23 (PDT)
I HAVE LAND HRRE MY PEOPLE
DR .MUGU
lome, TOGO - Tuesday, July 15, 2003 at 16:07:19 (PDT)
A warning about those super-strong NdFeB (and similar)magnets: They are a pinch hazard; if you get between them, their attraction can be strong enough to injure. That is comparatively well known. What is not so well known, however, is that if you try to pull yourself out from between the magnets (or a magnet and a steel piece, for instance), as the magnets move closer together, they squeeze harder! Remember the inverse-square law about force and distance. If you do get caught, try to use anything non magnetic to pry the magnets apart. If you don't, you might leave behind a small anatomical specimen! Guess how I learned...
Nicholas Bodley
Waltham, Mass. USA - Monday, July 14, 2003 at 18:38:05 (PDT)
Hi Bill My name is Johnny 38yrs form New Zealand. I have been hearing this hum off and on since about 1996. Until today I didnt know anyone else heard it. I wonder what it is. I live in the upper half of the north island of new zealand there is no industry within 10 miles of me and not much road traffic. I also heard this hum when living on the outskirts of Aukland NZ's biggest city. I am very perplexed. At the moment the hum is not stop the only change i can pick is that it isnt as constant as it was in the mid 90s but seems to have a slight phase effect. Oh well from what ive read no one seems to know. Beside this hum I have had many psychic happenings over the years and Im not sure if the two are connected.
JOhn Martin
New Zealand - Saturday, July 12, 2003 at 19:52:51 (PDT)
Sad to see that you have disembowelled the IRgoggles page. [Huh? What do you mean? IR goggles page has not moved, and it's slowly growing larger. - billb] I was looking forward to doing this with our new physics cohort in the autumn.
mike wilson
UK - Tuesday, July 15, 2003 at 03:42:58 (PDT)
Your explanations of traffic waves are right on. I do some defensive driving instruction for our company and have talked about this sort of thing for years. I'll be referrring my students to your site!
david
dallas, tx USA - Thursday, July 10, 2003 at 10:20:00 (PDT)
I laways loved making smoke rings while setting off bottle rockets. Now I have an eisier way to do it. Thank you.
Sqeenky
USA - Wednesday, July 09, 2003 at 18:33:37 (PDT)
Thank you so much for this great site! I *finally* understand voltage and what electricity really is (well, at least at the level that you have explained it :-)). I can not express my gratitude in words. It's nice to see a site with some content on the Internet.
Mike
USA - Wednesday, July 02, 2003 at 20:05:28 (PDT)
i have a question, i am taking a digital electronics class and want to know if( in a electrical circuit , can voltage exist without current? can current exist without voltage?
Richard Liptak
hopwood, PA USA - Wednesday, July 02, 2003 at 19:18:27 (PDT)
nice site. You are doing a great service to the web
chris
fr - Sunday, June 29, 2003 at 11:55:18 (PDT)
I am glad to see that I am not the only one trying to maintain forward motion in stop & go traffic. I learned this procedure watching long distance truckers in various parts of the country. Another thing I noticed, the right hand lane moves faster when there are several on & off ramps because the cars in the fast lane form to many static waves.
larry
N of Toronto, ON can - Friday, June 27, 2003 at 12:17:35 (PDT)
I'm lookin 4 info on microwaves 4 my scool work. cheerz mate!
fee
fee, e USA - Friday, June 27, 2003 at 02:24:30 (PDT)
The cars on the right or not merging. It is simply one line of traffic that has spit into two then reforming again. Has absolutly no merit.
Doug
Wigan, UK - Thursday, June 26, 2003 at 17:49:54 (PDT)
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Geoff Egel
Loxton, SA Australia - Monday, June 23, 2003 at 00:05:46 (PDT)


this site is great!!! it helps me to understand electricity very well.... thanks a lot!!
Pei Liang
Kuala Lumpur, Malaysia - Friday, June 20, 2003 at 23:40:54 (PDT)
i have designed and built what is to the extent of my knowledge the first sperical electro-magnetic confinment field generator that i use to repeatedly create spherical plasma globes that act like super conducters with capacatance and breakdown voltages... if anybody is willing to talk, post a mesage and i'll post my e-mail... P.S. i wanted to go to the tokamak people but i think i owe it to bill to post this
ira sollenberger
USA - Wednesday, June 18, 2003 at 16:12:28 (PDT)
I found this site by accident, but I'm glad I did.

I have been using the Internet for several years and so many sites are confusing, but not yours.

Thanks for the chance to sign your guestbook. It's nice to see how many people stopped by and posted a message.

John Calderon
sms sprüche
Kiel, K Germany - Wednesday, June 18, 2003 at 10:32:54 (PDT)


I NEED IMMEDIATE ACCESS TO A FULLY FUNCTIONAL STARGATE OR OTHER SIMILIAR TECHNOLOGY. I AM LOOKING FOR A BENEVOLENT SPECIES TO PROVIDE THIS FOR ME. I HAVE HEARD THAT ALIENS MIGHT HAVE THIS , BUT I DO NOT CARE WHERE I GET IT FROM. ALIENS , GOVERNMENT , MILITARY. A FRIEND OF MINE ONE DAY OUT OF THE BLUE AFTER WORK TOOK AN OVERDOSE OF ANTI DEPRESSENTS AND OTHER MEDICATIONS AND WOKE UP IN THE LOCAL HOSPITAL. HE WAS THEN IN THEARAPY, HE THEN GOT ON SSI AND WILLED HIMSELF INTO HELL ON EARTH. HE ALSO PHYSICALLY BEAT HIMSELF UP PRODUCING SOME LIFE THREATINING MEDICAL PROBLEMS. HE IS THROWING UP EVERDAY AND HAVING SWALLOWING PROBLEMS ALONG WITH HAVING BREATHING PROBLEMS AND HEADACHES AND A STOMACH ACHE HE IS NEAERLY PASSING OUT EVERDAY THEN HE GOT INTO A SERIOUS AUTO WRECK AND WAS IN A LESS SERIOUS ONE HE FELLS LIKE SHIT EVERDAY. HE IS SICK EVERDAY MY FRIEND AND I WANT HIM BACK AT HIS PEACEFULL JOB. AND FORGET HE CREATED THESE PROBLEMS SO THE IDEA HERE IS TO GO BACK AND HEAD THIS PERSON OFF AT THE PASS AND PREVENT THESE UNFORTUNATE ACTS NEED THIS TECHNOLOGY TODAY THANK YOU WOULD BE AN ACT OF MERCY ON YOUR PART Follow Ups:
C DANE
RICMOND, TX USA - Tuesday, June 17, 2003 at 10:12:58 (PDT)
I'm just a stupid person who ran her microwave (by accident!, meant to hit "timer" and hit "start") with nothing in it for 3 minutes. I immediately went to the internet for help, LOL, and burst out laughing at the microwave oven experiments here. I STILL don't know if I've ruined my microwave, though it seems to work -- I've only boiled water in a mug though, LOL. I'm afraid my machine will soon explode or something far more horrible is now destined to occur, and if I phone the manufacturer they will tell me I need to buy aa new one. My simple question is, is the stupid thing OK? Anyhoo, this is a great site, and the experiements have me rolling on the floor with laughter. Cool!
Sandy
MI USA - Friday, June 13, 2003 at 17:46:38 (PDT)
This is a great site, very interesting and informative. I am going to forward it to a 13 year old sientific genius...Thanks
JB
Tulsa , Ok USA - Friday, June 13, 2003 at 09:08:43 (PDT)
Have you found any paint that is water clear to human eyes but can be seen by wearing IR goggles? werdna90 at hotmailcom
Andrew
hillsboro, tx USA - Wednesday, June 11, 2003 at 18:01:24 (PDT)
about that squeeling wall laser expirament....do you suppose you could listen to conversations through walls, windows ect? no Im not spying, just curious. heee
Jesus Jimenez
El Paso, tx USA - Monday, June 09, 2003 at 14:12:41 (PDT)
Re: 'Cyborg text brain implants' If you're rapidly flashing words in one spot, and want to be able to read the text as quickly as possible, isn't it true that you should use mixed-case or lower-case rather than upper-case characters? We supposedly recognize words not by the individual letters they contain, but by the shape of the entire word when written in lower-case. All upper-case words present a lot less variance, so are harder to recognize.

Another suggestion: since you're keeping the entire text in one spot, you can afford to use a large font size. Above a certain size, serif fonts make words more readable than sans-serif fonts, because the little serifs add extra shape info to the word. Below a certain size, there isn't enough resolution to render the serifs properly, and they hinder word recognition. For on-screen displays, which are very low resolution compared to print, the switch occurs around 12-14 points (on a 72-96 dpi monitor.)

For your experiment I'd suggest 20-24 point text, though if you get too large long words won't fit within the eye's central focus, and you'll get eye strain either from trying to focus or flickering your eyes back and forth very quickly.


Douglas Webb
Glen Ridge, NJ USA - Sunday, June 08, 2003 at 12:15:12 (PDT)


HELP I have a Van De Graaff and no belt it needs to be 1x12 inches, This is going to be used in church next month and I need one asap
matt morris
wilsonville, al USA - Saturday, June 07, 2003 at 13:44:53 (PDT)
is this a tornado?
peter
Sögel, Niedersachsen Germany - Wednesday, June 04, 2003 at 12:17:44 (PDT)
im at axlebat2222 at yahoocom was not wrong. i know you guys get alot of wierd stories but here me out. i have been to indian cerimonies and i learned of him while there. i can live his dream of flight and , well , all i can say is it IS real.
cherokee
nc USA - Monday, June 02, 2003 at 13:33:42 (PDT)
Trying to find Chuck Shramek who wrote about an aura camera in the early 90's. Any information would be appreciated.... k2u at zianetcom
Jim Kough
Truth or Consequence, NM USA - Sunday, June 01, 2003 at 17:10:46 (PDT)
BILL, FANTASTIC INTERNET PROJECT! I FEEL LUCKY TO HAVE FOUND IT. KEEP UP THE GOOD WORK!
BOB
FORT LAUDERDALE, FL USA - Saturday, May 31, 2003 at 19:01:04 (PDT)
Hi Bill, I love your site. I especially love "Do This Now" since I am definitly a kid at heart.
I just now thought that it would be very neat if the "Enhanced Awareness" image were animated like the other images on that page. A chomping effect would be striking and maybe a voice bubble every once in awhile could materialize with some relevant words of wisdom.
But then it's easy for me to say isn't it! I can't even begin to fathom how many bazillions of hours it took for you to develop and maintain this site! Thank you for your efforts!

Ron
Esperance, NY USA - Saturday, May 31, 2003 at 15:12:04 (PDT)
loved your page on "Which way does current REALLY flow"
I'm Navy avionics schooled (electron flow) but now am an electrician (conventional I call it) So I tell people I'm bi-lingual! Keep up the good work. (I'm bookmarking your site)

Roger
Grand Forks, ND USA - Thursday, May 29, 2003 at 17:10:30 (PDT)
I have tried to make infrared goggles and I would like to know what I am supposed to see? P.S. Great site, The best I have ever seen. Contact me at werdna90 at hotmailcom. Thanks
Andrew
Hillsboro, TX USA - Wednesday, May 28, 2003 at 20:42:08 (PDT)
We've recently launched a new and improved website catering to the electronics hobbyist - minimum order quantities, very discounted pricing. check it out. www.arndt-electronicscom
Lisa
Belmont, CA USA - Wednesday, May 28, 2003 at 15:44:04 (PDT)
I really like your website, it helped me tolearn how electricity works. From Lisa
Lida
Gibbons, Ab. Canada - Monday, May 26, 2003 at 10:05:29 (PDT)
Science is part of our life every day, every minute and every second we should learn more to achive more too. I´ll like to leran every thing about environment and natural sciences.
Andrei Abruzzese
La Paz, LP Bolivia - Sunday, May 25, 2003 at 08:34:40 (PDT)
I am new tomthe elec world and am fascinated by your tesla coil stuff is lightning really that much rf or is it mostly voltage waiting for a chance to happen I really do want to know more to the point of meeting you and discussing rf prop and its relation to lightning itself help me understand please zpts at aolcom{not a joke someone please take me seriously}
zach phillips
waterloo, ia USA - Sunday, May 25, 2003 at 00:04:21 (PDT)
you are one strange puppy......welcome to our dimension.
Jesse
El Paso, TX, tx USA - Thursday, May 22, 2003 at 20:55:15 (PDT)
I would like to say this is a great resource for scientists, and basically anybody that is interested in science and learning more. I think you've put together a very good hobby forum here...just wanted to say good job.
James B Shafer
USA - Wednesday, May 21, 2003 at 19:38:36 (PDT)
While researching i came accross an article on the bajak flux capacitor. does this device actually work? how is one constructed? what principles govern its opperation? any and all information would be greatly appreciated. limpchimp9 at aolcom
alex costa
hilton head, sc USA - Saturday, May 17, 2003 at 19:29:36 (PDT)
Bill, this is just a tiny droplet in the great ocean you have already amassed, but we've just put up a nice, FREE, printable "Microscope Lab Journal" worksheet at: www.greatscopes.com/journal.htm. Keep up the good work!
John
High Point, NC USA - Saturday, May 17, 2003 at 19:11:18 (PDT)
Your right angle circuitry is interesting, and I believe it is a relative to the Magnifying Tesla coil. Think with me for a moment, in a disruptive discharge coil, the power from the transformer feeds the tank capactitator which then oscillates with the inductor coupled with the secondary winding which then feeds the teriary winding. In your circuit the winding feeds the metallic core which in turn feeds what would be the tertiary winding in a magnifying transmitter, however you instead close the circuit and use the coil to drive a PZT core. The circuit is closed and drives the PZT core for the same reason Tesla closed his circuits and wound the secondary, no maintain the oscillations properly in the tank circuit.

I also enjoy working with electricity and am interested in many other branches, but I tend to lean toward high frequency + potential electronics.

I do not have an E-mail but will continue to correspond with you on the subect if you are interested, I understand you are behind on your e-mail. If you would like to continue the subject (because I don't personally have an adress) could you try and put a notice on either your Tesla Coil page or your front page where i will see it?

Thank you,
Mr. Acosta
Seattle, WA USA - Monday, May 12, 2003 at 23:02:03 (PDT)


I have an ancient MS in Aero Engineering, but have to say that your explanation of smoke rings makes me really understand for the first time. Way to go!
Jerrod Mason
Ann Arbor, MI USA - Sunday, May 11, 2003 at 10:10:04 (PDT)
You have a very cool website! I love it! It has every thing and more!
Francois
Mossel Bay, 044 South Africa - Sunday, May 11, 2003 at 00:33:36 (PDT)
I love to learn about science.
Andrew Pearson
Niagara Falls, New York USA - Wednesday, May 07, 2003 at 07:25:58 (PDT)
Hey, just writing to say that the bottle motor worked great! i even posted some pics on my website. Thanks for the advice, and i even have detailed instructions on how i built it. (graphite bearing and all)the website is http://www.geocities.com/tooocool49723/EBM.html
Cory
Mi USA - Tuesday, May 06, 2003 at 18:02:54 (PDT)
trying to find out how to build an Electrostatic paint gun. any ideas. tks jj jj at duo-countycom
jj hunter
jamestown, ky USA - Tuesday, April 29, 2003 at 20:58:05 (PDT)
Science rules i love this site it is my life
science nerd
cape briton, 12 USA - Tuesday, April 22, 2003 at 06:24:43 (PDT)
One of your contributors way down on the list mentioned something about shorting out a nine-volt battery on their braces for the shock of their life.

I think that I actually found a practical use for engaging in similar behavior although I don't have braces.

One evening while I had my guitar in hand and boredom was setting in, I noticed the infamous nine-volt battery sitting on my night stand. I was thinking; "What would happen if I just touched the terminals real quick-like to one of the steel guitar strings?".......POW, PWING!!!!!!

In an instant the section of string in between the terminals of the battery glowed almost white and separated instantly with a very unmusical sound. The resulting ends were blue from the heat generated.

Soooo, if you ever need to cut a piece of music wire, just hold one end between your teeth, pull the other end taught, apply said battery and quick close your eyes!
Ron
Esperance, NY USA - Thursday, April 17, 2003 at 20:08:34 (PDT)


I think you make a mistake in your theorizing, in an area that matters a lot: it isn't unsafe to take off simultaneously with the car ahead of you. In fact, it's advisable, because it can have a dramatic reducing effect on traffic congestion waves. I make a practice, in all kinds of traffic, of watching the cars AHEAD of the car ahead of me (if I'm not behind a van or truck and can't see them) so that I can time my move with that of the car ahead of me. At slow speed hardly any gap is necessary in order to give myself enough reaction time for stopping safely, and I can allow the gap to widen gradually as our speed increases rather than waiting for it to widen all at once BEFORE I move. If everybody did this I think it would have an even greater effect on traffic jam waves than your "smug little man" practice (no offense) without the annoyance. It also works in all kinds of traffic. I think that the reason these jam waves persist and grow is that cars exiting the front of the wave speed up more slowly than cars entering the rear of the wave slow down (i.e., the wave grows at the rear faster than it dissipates at the front). My practice affects that directly.

[One driver can have a huge effect in some circumstances. But whenever there are little benefits unless a huge number of drivers change behavior... then there are little benefits. Changing behavior is admirable, but if it has minor impact on traffic, then it only improves the driver's character. If EVERYONE changed, then traffic would greatly improve, but since everyone does not change, some individual actions are useless. On the other hand, one single driver can wipe out miles and miles of traffic waves or "unplug" a huge backup at a highway exit. No hundreds of drivers are needed for this. That's the whole point of my article. -billb]
Patrick Johnson
Chicago, IL USA - Sunday, April 13, 2003 at 16:46:32 (PDT)


Bill thanks for putting together the website - a very good and useful one. I am planning to build a generator for a large magnetic pulse. I first contacted the High Magnetic Field Lab at the University of Florida in Tallahassee FL however they do not do public contacts that I can tell. My present plan to start is simply to charge a large cap, prob about 1F at 800V or so, and discharge that into a coil using some series-parallel power Fets to do the contacting. If anyone has tried to make a big current-pulse in a coil or would like to network I would appreciate hearing how well they did: NonDigitalcom at yahoocom. I have some info from Lawrence Livermore Berkeley (fusion exp) as to how to make a very high-curent cable which has low inductance (quadrapole cable).
Jerome Friedman
Tampa, FL USA - Saturday, April 12, 2003 at 06:44:40 (PDT)
Make 'smoke' with your mouth (http://amasci.com/~billb/cgi-bin/instr/instr.html) is hilarious. If you put a radioactive source in front of your mouth, are you a cloud chamber?

Speaking of which, I was able to fake a spinthariscope very easily. I bought some radium-painted hands, acetone-extracted the paint. At night I took the results (in a sealed jar!) into a dark room (I'm too impatient to wait to dark adapt during the day) and looked at it with a cheapo 2x loupe. Sparks! Or rather, radioluminescence. Major trick is to do this dark adapted, and you have to get the focus right (ergo the variable-foci of classic Crookes spinthariscopes).

I then tried this with unmodified radium hands from an old clock. This worked too! And it does look different from quantum mottle ---you see tracks, not points, since the alphas keep on going for a while.

I'd suggest having a sensitive geiger counter on hand when 'playing' with radium. I have an Aware Electronics RM-60 connected to an old laptop.
David Honig
Irvine, CA USA - Wednesday, April 09, 2003 at 20:43:37 (PDT)


We built your "Ultra Simple Electric Generator" as a den project for my Webelos (10 yr olds) den. It was a big hit and we all thought it was really cool. Thanks so much.
Dale
AL USA - Wednesday, April 09, 2003 at 20:17:14 (PDT)
Instead of painstakingly placing lots of little mirrors, create a parabolic reflector by using a large round frame, with some heavy (tarpaulin?) material hanging down to the requisite height to get an even change in angle throughout the material. (The maths is a bit difficult, the work itself is pretty easy).

Once you've done the maths, coat the tarpaulin with conductive wax, and move it into position. Now electroplate it with a brush electroplater......
Mark Stacey
SA - Wednesday, April 09, 2003 at 06:59:09 (PDT)


Just a big thanks to whoever put this terrific resource together. It's my second visit today and I've been on here for well over an hour.... even submitted a story of my own!
Six Sigma
Manchester, MA UK - Sunday, April 06, 2003 at 13:37:46 (PDT)
Being a homeschooler I find this sight excellent for my children. We are about to embark on developing a radio that requires no batteries. Someone has already done this but we want to try for a science experiment. This is where I found your sight a good starting poit. Thanks for the effort you have put in here it is greatly appreciated.
John
Melbourne, Vic Australia - Friday, April 04, 2003 at 17:19:51 (PST)
I have been working on my own traffic theories for years, and I have always joked about "writing a book" on the subject, but it looks like you already have- in one way or another. I get so frusterated because I explain these exact theories to people all the time, but no one seems to get it. May I link your site to my webpage? GREAT JOB!!!!
Sean
Mpls, MN USA - Wednesday, April 02, 2003 at 13:04:56 (PST)
This is a note related to Bill Beaty's "traffic physics" article in 1998 (just came across it today online.)

His suggestions for improving traffic flow bring up an interesting set of questions that have an ethical bent to them. In short: sacrifice by one (or a few) individuals (slowing down before traffice "waves") benefits everybody.

Being from NYC, where time is always short, I was always annoyed at waiting in supermarket lines while those before me had their groceries bagged. The simple solution to this problem is to have "baggers" (witness "Fairway" market), or to encourage shoppers to bag their own. This latter option is analogous to the traffic improvement actions Beaty recommends. That is, if all make a small sacrifice (actually bagging their own groceries), the overall speed of the checkout is vastly improved. If only one individual does this, then the benefit passes only to those behind that one individual.

Just an interesting (and somewhat mundane) perspective on communal benefits and individual actions.
Paul Greenman
New York City, NY USA - Sunday, March 30, 2003 at 08:08:06 (PST)


Dear Bill, Thanks for a great explanation of transistor operation. I agree very much with your sentiments regarding how most textbooks handle this. I took two Electronics courses in college and I remember being very confused about transistor operation. Your explanation was excellent and down to earth. Thanks
Phillip Lyons
Mansfield, Tx USA - Thursday, March 27, 2003 at 21:50:01 (PST)
BAD SITE
SEAN WRAY
CANADA, CANADA CANADA - Thursday, March 27, 2003 at 08:25:55 (PST)
Hi im going to give you all some tips on how to have fun with your projects and still do good on it. Well first of all you have to pick a project that you really think you will have fun with like maybe animals or even with food because you don't want to work a whole month or even more on something you don't like or you are bored with. next thing is keep your problem statement simple. Third, research your topic for instance think ''what do i already know about this project_________________?'' and ''what information do i need to complete my understanding of ____________?'' and also ''what have otherresearchers and experts said about______________?''research on the computer and books whatever you can that can help you. Fourth, hypothesis you can put my hypothesis for my problem statement is________________. Fifth, for the materials alll you have to do is list them. Sixth, you need to record you observations on a sheet of paper. Seventh, list the procedure step-by-step. Then, you need your variables and controls pick the variables and controls so that the project makes sence. Next make you data table and log . Next make your charts graphs or whatever you are using. Write your conclusions , application , and abstract. Then write your reasearch report and bibliography. and finally you have to decorate your board and if you need help email me at koolgurl1899 at yahoocom please please please please email me!!!!!!!!!!!
Andrea Turco
miami, fl USA - Tuesday, March 25, 2003 at 18:32:24 (PST)
Hey Bill; we enjoyed the rich database of information on your web page. It certainly is refreshing to obtain such a landscape of information under a single "roof". I'll be back often. Thanks bccmeteoritescom
S. Ray DeRusse
Ft. Worth, TX USA - Sunday, March 16, 2003 at 19:32:28 (PST)
like our fellow westylians, we thoroughly enjoy a rousing block of biology honors where we cease the oppertunity to "tweak" our information.. and to "kick it up a knotch" when learning about intricate processes within our bodies. truly yours~
clawf and arse
bangladesh, arkansas france - Friday, March 14, 2003 at 18:16:30 (PST)
I think this site is great to find experimients on... keep it up!
Rachelle
USA - Wednesday, March 12, 2003 at 05:59:51 (PST)
its an ok site
hayley
bobbly, ga USA - Friday, March 07, 2003 at 15:48:03 (PST)
The Science Museum of Minnesota's link appears to have an incorrect address attached to it. Here's the URL for the Science Museum of Minnesota: http://www.smm.org
D. Bailey
USA - Friday, March 07, 2003 at 13:37:18 (PST)
Hello, i am a science 4 (highest offered) student at Petoskey High School. We are doing a science fair for small children, and i have a few questions that i need answered. First off, ive been reading up on this pop-bottle motor, and it seems like a fun idea to demonstrate electrostatics. I am looking into buying the $11 negative-ion generator from Electronics Goldmine (seawise Industrial Ltd. Model #g1783 they say that it has an output of 7,500 volts), but first want to know if this will power a pop-bottle motor of reasonable size (2-liter bottles). Secondly, will it be safe to demonstrate around small kids (1st-5th graders)? Also, somewhere on the website http://amasci.com/emotor/emotdemo.html it says that you could run the motor just by holding one end of the wire and pointing at one of the stators. is this true (with 7500 volts)? thank you for your help, my e-mail address is too-cool-2 at excite.com
Cory
Petoskey, Mi USA - Tuesday, March 04, 2003 at 14:43:06 (PST)
You're site is awesome. Thanks so much for all of the work and time you put into it. Oh, we tried the grape experiment and it is awesome! Please explain.
Lynda
Pittsburgh, PA USA - Thursday, February 27, 2003 at 08:29:52 (PST)
I love your website! I homeschool my children, grades 4 and 7. I am looking for good science textbooks with minimum errors. Do you have any suggestions?
Kitty
DeLand, Fl USA - Wednesday, February 26, 2003 at 07:13:40 (PST)
Sundays too my father got up early, and put his clothes on in the blueblack cold, then with cracked hands that ached from labor in the weekday weather made banked fires blaze. No one ever thanked him. But thanks for this site! Steve S. from www.saroffcom --
Steve Saroff <ssaroff@hotmail.com>
Missoula, MT - Saturday, February 22, 2003 at 19:09:36 (PST)
qwerty says good job haha you wish
qwerty
loo, lol lll - Wednesday, February 19, 2003 at 09:33:18 (PST)
noodle noodle i like eggs i do to...lol
noodle
NOODLE CITY, nl NOODLE - Wednesday, February 19, 2003 at 09:27:07 (PST)
I really like your site.It has a lot of useful info and is easy to understand. my friends and i are looking for info for our tech ed project and im sure we wont have any troubles finding any!!Have a nice day:)
milkshake
truro, ? ? - Wednesday, February 19, 2003 at 09:06:00 (PST)
How do you steer the ultra simple hovercraft . I want to now because I am going to build one
Seth
Manassas, VA USA - Monday, February 17, 2003 at 12:59:32 (PST)
IS THIS TRUE???? ___________________________________________________________ Here's the detailed analysis. The power released during the strike is equal to the strike's voltage times its current: the voltage between clouds and ground and the current flowing between the two during the strike. Voltage is the measure of how much energy each unit of electric charge has and current is the measure of how many units of electric charge are flowing each second. Their product is energy per second, which is power. Added up over time, this power gives you the total energy in the strike. If you want to capture all this energy in your equipment, it must handle all the current and all the voltage. If it can only handle 1% of the voltage, it can only capture 1% of the strike's total energy. ___________________________________________________________
JAG
canada - Monday, February 17, 2003 at 10:24:12 (PST)
KEEP OF OOOOOOOOOOOOOOOOOOOOOOOOOOOOOO G.MEN
MUGU
MY CITY?, 1 USA - Sunday, February 16, 2003 at 10:19:37 (PST)
Your traffic jam/wave observations mirror my own. Something else tho. I would suggest that drivers always accelrate rapidly when getting on to an ON-RAMP. It's much easier (and safer) to slow down at the last minute and merge than it is to speed up at the lat minute and merge. I have seen some drivers actually STOP and look back along the oncoming traffic looking for a merge-in gap. YIKES!!!
Phil
Auckland, New Zealand - Wednesday, February 12, 2003 at 13:45:26 (PST)
in regards to: ABOVE TORNADO: ALL SPECULATION! But if this is truely the way it works, then it might be possible to destroy a tornado by "shorting it out" somehow. If a tornado was allowed to suck up a huge cloud of sharp metal "chaff", perhaps this would wreck the electrical effects and make the thing stall out. I remeber reading an article one time about how a warrior would throw a golden axe into the funnel then the funnel cloud would just vanish If the above is true then this legend could have verry much been true bringing light to the knowledge of yesteryear.
brandon turnbough
piedmont, mo USA - Wednesday, February 12, 2003 at 10:44:12 (PST)
I absolutely LOVE your website! And if any of you super awesome science dude want to contact me, you can call me at 748-4243!!!
Suzy
New York City, NY USA - Tuesday, February 11, 2003 at 12:04:34 (PST)
Just read an article about the "invisible wall" that 3M are supposed to have reported. I note that the text contains two contradictory statements that seem to have been overlooked and therefore make the whole story suspect. If a human was not able to penetrate the "wall" how come a fly got sucked into the moving belt ?
[You don't understand. Go look at the diagrams in the linked article from ESD Jornal. The moving belt was about 20 feet across. The "wall" was supposedly a thin region near the center of the "tent" formed by the moving belt. The fly-sucking area was absolutely enormous. The area covered by the wall was a tiny fraction. -billb]
It's a good story but as usual some sloppy thinking has spoiled it. If the story was true 3M would have patented the idea and be creating force fields everywhere
[LOL!! "3M corp" never even knew about it. Only a manager in a manufacturing plant and a 3M electrostatic remediation engineer knew about it, and as the story reports, the "wall" was creating a safety hazard. That's why the electrostatic engineer was called in: to get rid of the problem. He did his job. There was no corporate board making decisions about this stuff. Don't you believe that people can look right at an amazing scientific discovery and see only a problem to be eliminated? It happens all the time, and we especially hear about it when one insightful person actually follows up and makes a famous discovery... then lots of ther people realize that they looked right at the discovery over the years, but only saw "problem" or perhaps "noise."] .
- perfect security. This sounds very similar to the force field projected by the VDG story. No wonder it's called "fringe" science.
[There are two kinds of extreme irrationality: the believers and the scoffers. Both are resistant to evidence and reason. They aren't seeking the truth like scientists do. Instead they already "know" the truth. Without a second thought they'll bend facts to fit their prejudices. The word Pseudoscience applies both to "believers" and to "scoffers." Both pretend to have a rational viewpoint, but it's a false facade. To detect the scoffer style of pseudoscience, look for their logical fallacies: emotional ploys like ridicule and sneering, and the classic stance of "Contempt Prior To Investigation." A scientist-type person will find a sensible explanation for weirdness, if one exists. A scoffer-type pseudoscientist will indulge in twisted reasoning, or will simply sneer at the weirdness, as if that can make it go away. -billb ]

Bill Bailey
Wells, UK - Tuesday, February 11, 2003 at 08:33:38 (PST)
Awesome website need more samples of science projects!
Brooke
Tipton, MI USA - Monday, February 10, 2003 at 18:16:48 (PST)
yall really need to add some pizzaz or sumthin to this sight cuz it makes me wanna fall asleep!!!Otherwise its pretty cool...i guess...I love dance!!!and I love drew
Selina
memphis, tn USA - Saturday, February 08, 2003 at 18:55:41 (PST)
This is a wonderfull site that far exceeds anything else on the net.Live long and prosper.
richard craig
islandmagee, n.ireland - Wednesday, February 05, 2003 at 12:30:15 (PST)
My daughter came home with a science trick that no-one has been able to explain, maybe you can: Cut a grape in half, place the two halves in a microwave so that the edges are just touching. Put it on high for 1 min. The grape bursts into flame with a bright blue arc! It's very spectacular!
Steve Sidwell
USA - Monday, February 03, 2003 at 18:41:14 (PST)
Helped my son build a VDG and electrostatic motor for science fair, We had a blast. And it actually worked. Thanks for the plans on your site.
A.C
Staten Island, NY United States - Friday, January 31, 2003 at 16:01:25 (PST)
AWESOME WEBSITE! I'm really becoming fascinated the more I find out about electricity, Tesla coils,etc...Your website makes learning about science fun! Thanks.
DJJeffreyLA at HotPOPcom
North Hollywood, CA USA - Sunday, January 26, 2003 at 03:53:31 (PST)
I love your page! Because when your searching on the internet you always fins skeptics who are very biased in thier opinion, but the problem is that still everybodey takes them serious. I'm writting a book, and one of the kapitals goes about skeptism. I can use your writings verrry good for my book for better arguments. So i wanna ask you if i can use your resources to further build on with my book. If so, I can link your information to my page instead of copyting it, that way, we can sort of back-up eachother and 'fight' the big croud together sort of speaking. Please e-mail me at het_is_ik at donnykcom
Novardi
Hoorn, Netherlands - Friday, January 24, 2003 at 11:08:52 (PST)
Dear Mr. Bill Beaty and All, In the summer of 2003 there will be 95th Anniversary of the famous Tunguska event, which shook Siberia many years ago, and there is still no consensus among Tunguska researchers on "what it was". I would like to attract attention to Tunguska-2003 international conference which will take place in Russia, and where various ideas about Tunguska will be presented apparently. I would like to invite Mr B.Beaty and all readers to attend. And if somebody wants to visit the Tunguska epicenter just like a tourist, he is welcome. More info: http://olkhov.narod.ru/conf03.htm Sincerely, Andrei Ol'khovatov Russia, Moscow
Andrei Ol'khovatov
Moscow, None Russia - Thursday, January 23, 2003 at 20:36:23 (PST)
This site solves Faraday's Riddle concerning the question of if the magnetic field rotates or not in a homopolar generator. It also gives instructions on how to construct a more efficient HPG. See chapter 26 at the url http://www.rci.rutgers.edu /~williebo
Willie Johnson Jr.
Piscataway, NJ USA - Wednesday, January 22, 2003 at 12:42:13 (PST)
I really like your site good links but like some1 else said where are the paraormal stuff?
Freddie
USA - Tuesday, January 21, 2003 at 16:38:59 (PST)
This isn't really a comment, but I think that the people reading this collum could use this advise:"I knew how I wanted to live my life, and what was important to me.It came from letting go of all that fear, of worrying about other peoples perceptions, other peoples anger.I realized when I embraced who I was, who I really was I became the best version of myself!!!And just for the record,here just listen to this:O.k look some people say I have an attitude, well... maybe I do, but I think you have to- you have to believe in yourself when no one else does- that makes you a Winner right there!!Ok now your propably getting tired of me so well.... bye
anonymous
woodcrest, c.a USA - Tuesday, January 21, 2003 at 14:19:26 (PST)
hi i am an engg. student and want make an helicopter anyone intrested please mail me. thanks
varun
delhi, del india - Sunday, January 19, 2003 at 06:01:23 (PST)
On your van de graff site, one problem not mentioned was to be careful of the dome. Polishing the dome may destroy electrical conductivity with the result that the machine generates no spark at all.
Paul Rosenberg
Merion, PA USA - Wednesday, January 15, 2003 at 15:02:34 (PST)
werq
eerw
qerqer, werq USA - Wednesday, January 15, 2003 at 13:09:24 (PST)
I couldn't find anything i wanted i hate this web site it sucks.I'm telling everyone at school not to come to this web site it sucks!!!!!!!1
summer
kiss it!, La. USA - Monday, January 13, 2003 at 19:15:20 (PST)
Enjoyed your site. Anyone interested in cool science songs check Chromotones out on mp3com
Martyeyed
St. Louis, MO USA - Sunday, January 12, 2003 at 20:38:17 (PST)
I looked around your info about web page mistakes. One thing I don't think you addressed: Do all html-generating programs suck? I have seen alot of crap made by MS Front Page, where the fonts are all different in different browsers, different sizes, etc. Anyone have any suggestions of GOOD programs, please let me know at francine_eisner at yahoocom
Francine
New York, NY USA - Saturday, January 11, 2003 at 04:08:28 (PST)
Excellent site for the young & the "older"! My son just built a Lord Kelvin's Thunderstorm" water-drop electrostatic generator for his Science Fair project...rather than the Telsa Coil he originally wanted to build (give him another few years for that one!) After hus first shock he called it a night....success! Thanks for your efforts to bring many good ideas to our finger tips!!!! We are having Fun!!!
Buzzy
Tahlequah, OK USA - Thursday, January 09, 2003 at 21:40:46 (PST)
Thanks. I'm a lawyer who has to explain airfoil to Cub Scouts tonight. You really helped me recover from the weaknesses in Bernoulli. I'll instead try "Inverse Coanda," like this: Air is a perfectly elastic fluid. After it gets bumped out of the way by the moving wing, the air around the air pushed out of the way pushes it back to where it was. The air on the bottom rushes up and reaches the wing bottom with a higher rate of success (molecules/horizontal inch) than the molecules on the top rushing down toward the wing curving away from them. That makes for more push up than push down. Up wins.
Peter Dawson
USA - Thursday, January 09, 2003 at 13:45:32 (PST)
its a great site
sar
USA - Wednesday, January 08, 2003 at 16:34:39 (PST)
This is a great site! I used it to work on a science fair project. Thank you so much!
Suzi
Steinbach, MB Canada - Monday, January 06, 2003 at 13:33:54 (PST)
I know very little about physics or electricity. I went online to find out more about why my daughter gets "shocked" sometimes around the house. Your discussion excited me to learn more, especially your analysis showing that "electricity" is not a substance or "thing." Also, I liked the discussion of Franklin's experiment. Thanks a lot.
Jeff
Brooklyn, NY USA - Saturday, January 04, 2003 at 10:01:53 (PST)
hi, i was trying to make the infrared goggles out of the congo blue and primary red lighting filters. they don't seem to do anything at all. the view just looks dark red. in fact, they seeem to work better with no red filter at all. has anyone experimented with this? any suggestions? [They're working. Infrared light appears dark red to human eyes. Read the whole IR goggle webpage a couple of times. Ya gotta go outside in the sun! Then the grass is no longer red, and some dark green trees look frosty white. Use human eyes to look at two layers of congo blue... and it looks black and opaque, but look at the same filters while wearing the goggles and you can see right through. Put layers of congo blue over an outdoor sign, and only the goggles-wearers can see the sign, while human eyes see only a black square. Use the goggles to look at various kinds of black t-shirts or other black clothing in bright sun: some of it looks light grey in the IR (and then you can write on it with black ink, creating messages that can be seen when wearing the goggles.) Put several layers of congo blue and red filters over a digital camera lens and it becomes an IR camera. Make sure you use at least three layers of congo blue in the goggles (also try five, or even more.) -billb]
---thanks, evan

evan
katy, tx USA - Friday, January 03, 2003 at 14:42:43 (PST)
 
 
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