From: Beaty, William J
Subject: devices
Date: Monday, April 14, 1997 10:48AM

BEST STUFF

Mirror Chip Products:
	mirror-chip sign "PHYSICS",  "FRESNEL"
	solar furnace, large vacuformed fresnel mirror (kit?)
	vacuformed mirror-chip sundial kit

Giant analog needle-meter w/servo motor drive (volts, amps, range switch)

crystal array magnet balls (float in pan of water)
	small disks of rubberized magnet, each with foam for
floatation (or find a floating rubber magnet)
	 larger "ions" for dislocations
	3-magnet "water molecules"
	smaller magnet balls with "racetrack" to demonstrate circuit
	magnet strips to repel them from the walls
	use non-bouyant magnets, seal them into a cell full of oil

Mechanical maglev rollers
	(magnets in ends keep the floater centered)

Rainbow wall tiles, glass w/black backpaint, resin tape spacers on the edge

DuLuc Dry Pile, al foil and carbon paper!
diecutting, Art G., how to press foil onto carbon paper, diecut it, press the stacks in
piston/cylinder tool.   Try copper foil, try aluminum, which is better for carbon?

pellicle mirror box  w/air pump and timer,

pellicle mirror box  w/loudspeaker and oscillator (clear version for overhead)

VandeGraaff:
	E-field "compass" panel
	telescoping antenna voltage control w/magnetic base
	blinking wand
	giant electrostatic disk-motor

Total internal initials paperweight, die-cut resin tape and plexi hemispheres?

Artificial maglev superconductor table

100-amp cable w/compass-table

Moire patterns which say "physics"

Giant 3D postcard panel w/various images

Planetary gears with constant-diameter triangles

Square and triangular wheels

Giant polaroid window spinner

Mechanical TV w/LED backlight box with various stored animations
sense rotation of disk, so flashing of LED is apparent when slow

tiny LED stroboscope w/9v mount

tiny electrometer w/9v mount

Transparent water "flashlight" circuit with switches,  vacuformed tilt-troughs(filament), gates, clear so water height is visible.

"zero gravity" box w/camera, lighting, furniture, barbie & GI joe,
plugs into wall.  "moving van", "vomit comet", "livingroom"

magnet accelerator car and track (hall effect, NSNSNS magnets)
one hall switch, two power darl transistors, two 12v solenoids, 2 1K resistor, 2 flyback diodes, 9v battery

small, glitzy electrostatic motor

"tuning capacitor" electrostatic motor (etched PCB stack, maybe use
3-layer PCB with commutator ring)

electrostatic motor kit



DuLuc Dry Pile 290cells/inch,  200V/inch
5inch = 1Kv
real silver-leaf paper is slightly better.
Zinc foil is lots better.
Cu+  Al-		.75v
Brass_ Al-	.65
Cu+ Solder-	.32
Solder+ Al-	.32
Cu+ Zn-		.79
Cu+ tin		.3
paper .004"
newspaper .002"
Al .00045"
Cu .0011

NIB demonstrations
	thickwalled slow-fall tube w/camera adapter
	tilted racetracks w/copper plates
	aluminum plate "top", magnetic gear

(Done?) Chochlear frequency analyzer springs

Rope Circuit:
	battery/bulb with pulleys, rope, a switch, a motor
	Induction: rotate drum with spiral of rope, friction on other end

Water circuit, two clear cylinders with magnet-moved pistons, valve,
maybe a version with two branches

VISIBLE ELECTRICITY
	giant lecture-hall version
	large ring with sensor coil, (induction demo,
conductor/superconductor demo)
	2-D conductor panel w/hall sensors

hex-cell wall w/mirror

facewarp mirror (mini "zero-g mirror")

Outdoor mirror ball and mounting bracket for swing set, chain link fence, etc.

Giant spinning-disk attract/repel field display

foucault pendulum on turntable

self-starting siphon

bubble sculpture tank, air pump, etc.

eyeball-slab clear polyester casting, w/lens in front, pupil
aperature, white mist for seeing rays

Voltage sensor demo, FET electrometer and red/green lightbulbs

Large ring-coil w/visible electricity
   adapter, runs two ring-coils in 2-phase w/slowly rotating field 
   giant compass-disk panel

20KV plate with slow AC field (for electrometer panel)

"feel the force" box

inline waterdrop generator kit

Motor as disk with coils, each with red/green lights

body-voltage voltmeter

constant brightness, variable shape extended source (bulb array)
(switches between O and X, but with same bulbs)

magnet slab with ball bearings forms crystal, wave a magnet near it

"magnet liquid" disk-magnet array plexi cell (w/oil?)

humidifier/speaker vortex string generator

"electron sea" cell, glued-down marbles are ions, water and plastic
beads are electrons, no bubbles

cast blocks with mist, one side opaque w/lens and iris cast into one
end, wave light bulbs around.

scratch-hologram plotter
scratch-hologram roller printer


E-field bar graph

floor-mounted hand-crank VDG pylon.

mirage cube GRIN cube (glue two plastic blocks together, differing index)  white mist to make laser visible

total internal reflection sphere (2 hemispheres with flat bubble)

Mist bowl (needs tank for used water)

Mist generator mail-order? w/water sensor, mist tank, VLF sound demo

Vortex gun (w/mist generator?)

Impossible TOMI roller-coaster

machine to make "clink" tubes

e-field wand, bargraph or row of detectors

IR wand kit, PCB, black phototransistors, 2n2222, LED, resistors

IR sensor, LED as sensor, clocked analog switch and op amp

spinning drum, b-field, e-field, IR light,

spinning microphone disk w/emitters

sound camera, sound shadows

spinning paddle 3D b-field

aura tester panel

cheap electrostatic power supply, 10Kv 50uA, like "ion generator"

field mill voltmeter, measure vdg output

G-force meter/display for elevator

Air table accessories:
	"electron" magnetic repulsion pucks for crystal, 
	"conductor" air table.
	
	magnetic earth and moon attract, orbit each other (heavy earth)

	lunar boulders, space shuttle, astronauts, satellites,
airplane with contents