B+55+15 | Young's modulus rod: Hammer and rod with nodes marked. | 2014-03-13 |
D+35+14 | YBaCuO pellet with magnet in liquid nitrogen on TV camera. | 2014-03-06 |
F+85+0 | YBaCuO pellet with magnet in liquid nitrogen on TV camera. | 2014-04-17 |
A+70+0 | X,Y,Z-coordinate system with vector arrows. | 2014-04-22 |
F+95+0 | Working helium-neon laser in transparent housing. | 2014-04-15 |
F+95+0 | Working helium-neon laser in transparent housing. | 2014-04-17 |
B+67+0 | Whip | 2014-03-13 |
B+67+0 | Whip | 2014-04-24 |
B+67+0 | Whip | 2014-05-01 |
A+14+0 | Weight on a vertical spring with markers on stand. | 2014-01-21 |
A+14+0 | Weight on a vertical spring with markers on stand. | 2014-05-01 |
A+14+0 | Weight on a vertical spring with markers on stand. | 2014-02-06 |
A+14+0 | Weight on a vertical spring with markers on stand. | 2014-02-04 |
D+5+24 | Waveguide pieces to show. | 2014-04-03 |
A+50+5 | Water projector: Adjustable angle water jet in front of grid. | 2014-02-06 |
E+60+17 | Water fiber optic | 2014-03-20 |
A+70+5 | Vector arrows of various sizes and colors fit in wooden bases. | 2014-02-04 |
G+5+0 | Vault of the heavens: Large lucite globe. | 2014-04-29 |
E+60+40 | Variable index of refraction: laser beam bends in water tank with sugar. | 2014-03-20 |
D+10+20 | Van de Graaff generator. | 2014-03-04 |
D+10+20 | Van de Graaff generator. | 2014-02-27 |
F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2014-04-10 |
F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2014-04-15 |
F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2014-04-17 |
E+65+30 | UV light causes mineral and fabric samples to fluoresce different colors. | 2014-04-03 |
E+65+30 | UV light causes mineral and fabric samples to fluoresce different colors. | 2014-04-10 |
A+35+2 | Two people in rolling chairs pushing and pulling | 2014-02-04 |
B+15+0 | Two large pendulums coupled with spring. | 2014-03-11 |
F+30+0 | Tunneling:Microwave analogy using wax prisms. | 2014-04-17 |
B+10+60 | Tuning forks, various. | 2014-03-11 |
B+25+0 | Transverse wave model, hand-cranked. | 2014-03-11 |
E+60+5 | Total internal reflection/critical angle: Nakamura water tank. | 2014-03-20 |
E+5+15 | Three-color projector for additive color mixing with arc lamp. | 2014-03-18 |
B+15+1 | Three large pendulums coupled with two springs. | 2014-03-11 |
A+20+5 | Tablecloth yanked out from under dishes. | 2014-02-04 |
A+20+5 | Tablecloth yanked out from under dishes. | 2014-01-21 |
A+20+5 | Tablecloth yanked out from under dishes. | 2014-05-01 |
A+0+47 | Swing water in a bucket. | 2014-02-06 |
B+65+0 | Sonalert swung on the end of a string. | 2014-04-22 |
B+65+0 | Sonalert swung on the end of a string. | 2014-03-13 |
B+65+0 | Sonalert swung on the end of a string. | 2014-04-03 |
B+65+0 | Sonalert swung on the end of a string. | 2014-05-01 |
B+65+0 | Sonalert swung on the end of a string. | 2014-03-11 |
G+5+10 | Solar system model. | 2014-04-29 |
E+25+40 | Soap film interference: The soap bubble experiment on arc bench. | 2014-03-18 |
B+10+1 | Simple pendulum: Ball on a string. | 2014-04-29 |
B+10+1 | Simple pendulum: Ball on a string. | 2014-05-01 |
B+10+1 | Simple pendulum: Ball on a string. | 2014-03-11 |
B+10+1 | Simple pendulum: Ball on a string. | 2014-02-04 |
B+50+20 | Set of eight organ pipes to make a major scale. | 2014-03-13 |
B+25+10 | Rubber rope stretched across front of room. | 2014-03-11 |
A+30+15 | Rotating chair with dumbbells or weighted bicycle wheel. | 2014-02-06 |
A+30+15 | Rotating chair with dumbbells or weighted bicycle wheel. | 2014-05-01 |
B+50+10 | Rope and strobe: Transverse standing waves, motor driven. | 2014-03-13 |
B+50+10 | Rope and strobe: Transverse standing waves, motor driven. | 2014-04-15 |
B+50+10 | Rope and strobe: Transverse standing waves, motor driven. | 2014-05-01 |
E+40+25 | Retrodirective reflector: Silvered right angle prism, using laser. | 2014-03-20 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2014-03-04 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2014-02-27 |
E+20+6 | Reflection hologram viewed with white light. | 2014-03-20 |
E+20+6 | Reflection hologram viewed with white light. | 2014-03-18 |
E+60+10 | Rainbow: Refraction of white light by a liquid sphere. | 2014-03-20 |
E+45+60 | Polarized light and stressed lucite on an OHP. | 2014-03-18 |
D+5+32 | Plexiglas model of electromagnetic wave. | 2014-03-18 |
F+18+10 | Photomultiplier tubes to show. | 2014-04-17 |
E+40+10 | Phantom lightbulb: Image in a plane mirror. | 2014-03-20 |
E+40+10 | Phantom lightbulb: Image in a plane mirror. | 2014-05-01 |
D+60+0 | P-N Junction as a rectifier: Current flows one way. | 2014-04-17 |
C+22+10 | Operating Sterling cycle engine, gas powered. | 2014-01-21 |
C+22+10 | Operating Sterling cycle engine, gas powered. | 2014-01-23 |
C+22+10 | Operating Sterling cycle engine, gas powered. | 2014-05-01 |
E+5+10 | Newton's color disk: When rotated,appears white. | 2014-02-24 |
F+80+0 | Mousetrap chain reaction experiment. | 2014-05-01 |
F+80+0 | Mousetrap chain reaction experiment. | 2014-02-18 |
A+50+10 | Monkey and the hunter. | 2014-04-22 |
A+50+10 | Monkey and the hunter. | 2014-02-06 |
A+50+10 | Monkey and the hunter. | 2014-05-01 |
E+45+5 | Microwaves with grid. Transmitter and receiver are polarized. | 2014-03-18 |
E+15+10 | Mercury spectrum using slit and grating, includes UV lines. | 2014-04-15 |
B+10+0 | Mass on a spring. | 2014-04-22 |
B+10+0 | Mass on a spring. | 2014-04-24 |
B+10+0 | Mass on a spring. | 2014-04-29 |
B+10+0 | Mass on a spring. | 2014-03-11 |
B+25+5 | Longitudinal wave model, hand-cranked. | 2014-03-11 |
C+70+32 | LN2 in a model cannon shoots a cork. | 2014-01-30 |
C+70+32 | LN2 in a model cannon shoots a cork. | 2014-05-01 |
C+70+32 | LN2 in a model cannon shoots a cork. | 2014-01-28 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2014-03-06 |
F+15+5 | Light through different filters into phototube changes current. | 2014-04-10 |
C+65+2 | Light the Match. | 2014-03-20 |
C+65+2 | Light the Match. | 2014-05-01 |
E+60+15 | Light pipes and fiber optic flashlight. | 2014-03-20 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2014-03-06 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2014-05-01 |
E+25+15 | Laser beam through various slit and grating combinations. | 2014-04-15 |
E+10+5 | Laser beam through sets of 1, 2, or multiple electro-formed slits. | 2014-03-18 |
E+10+5 | Laser beam through sets of 1, 2, or multiple electro-formed slits. | 2014-05-01 |
B+35+0 | Large wood model of a double slit with hinged waves. | 2014-03-13 |
C+65+10 | Large transformer heats metal strip with chalk marks on it. | 2014-04-03 |
C+65+10 | Large transformer heats metal strip with chalk marks on it. | 2014-03-18 |
D+75+4 | Large Tesla coil. 15 inch discharge. | 2014-05-01 |
D+75+8 | Large Jacob's ladder. | 2014-03-04 |
D+75+8 | Large Jacob's ladder. | 2014-03-06 |
D+75+8 | Large Jacob's ladder. | 2014-02-27 |
A+30+45 | Large gyroscope in a suitcase. | 2014-02-06 |
A+30+45 | Large gyroscope in a suitcase. | 2014-05-01 |
B+55+10 | Large glass bowl with ping pong balls and violin bow. | 2014-03-13 |
D+30+1 | Large compass needle on stand. | 2014-03-06 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2014-03-06 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2014-05-01 |
E+65+0 | IR source illuminates audience viewed with CCD TV camera in dark room. | 2014-04-03 |
B+35+10 | Interference of sound waves from two speakers, same generator. | 2014-03-13 |
E+55+10 | Image formed by a pinhole using three light bulbs in a box. | 2014-03-20 |
C+20+15 | Hot air balloon: Dry cleaner bag over Bunsen burner rises to ceiling. | 2014-04-03 |
C+20+15 | Hot air balloon: Dry cleaner bag over Bunsen burner rises to ceiling. | 2014-01-28 |
C+20+15 | Hot air balloon: Dry cleaner bag over Bunsen burner rises to ceiling. | 2014-01-30 |
D+55+4 | High current melts the fuse wire. | 2014-03-04 |
D+55+4 | High current melts the fuse wire. | 2014-02-27 |
B+45+50 | Helmholtz resonators drive radiometer vanes, using tuning forks. | 2014-03-11 |
C+20+0 | Heat water in "O" shaped tube adding a dye. | 2014-01-28 |
C+20+0 | Heat water in "O" shaped tube adding a dye. | 2014-01-30 |
D+15+11 | Hand-cranked DC generator powers 120 volt lamp. | 2014-03-06 |
D+15+11 | Hand-cranked DC generator powers 120 volt lamp. | 2014-01-23 |
B+45+5 | Giant tuning fork, barely audible, displayed with stroboscope. | 2014-03-11 |
F+65+5 | Geiger counter. | 2014-05-01 |
F+65+5 | Geiger counter. | 2014-02-11 |
F+65+5 | Geiger counter. | 2014-02-13 |
E+65+12 | FLIR T200 Infrared camera | 2014-05-01 |
E+65+12 | FLIR T200 Infrared camera | 2014-04-03 |
E+65+12 | FLIR T200 Infrared camera | 2014-04-10 |
C+65+25 | FLIR T200 Infrared camera | 2014-01-30 |
C+55+60 | Equipartition of Energy: Different mass balls bounce out at different times. | 2014-01-30 |
C+22+0 | Engine models: Steam, 4-cycle Otto. | 2014-01-30 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2014-01-21 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2014-01-23 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2014-05-01 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2014-02-27 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2014-03-04 |
F+15+15 | EMF generated by phototube using halogen light source. | 2014-04-10 |
D+45+2 | Elementary split-ring armature DC motor. D+15+6 as a motor. | 2014-03-06 |
D+30+25 | Elementary motor: De La Rive Tube. | 2014-03-06 |
F+10+0 | Electron diffraction by aluminum and graphite on CRT. | 2014-04-15 |
A+50+0 | Dropped and shot balls hit bench simultaneously. | 2014-02-06 |
E+10+15 | Diffraction about pinhead, razorblade, wood screw using laser. | 2014-03-18 |
E+65+10 | Detection of the IR, visible, and UV spectra using arc lamp. | 2014-04-03 |
E+65+10 | Detection of the IR, visible, and UV spectra using arc lamp. | 2014-04-10 |
G+60+40 | Detection of the IR, visible, and UV spectra using arc lamp on TV camera. | 2014-04-03 |
G+60+40 | Detection of the IR, visible, and UV spectra using arc lamp on TV camera. | 2014-04-10 |
E+30+20 | Cylindrical lens of lucite with words "DIOXIDE GLASS". | 2014-03-20 |
E+30+20 | Cylindrical lens of lucite with words "DIOXIDE GLASS". | 2014-05-01 |
E+5+25 | Cyan, magenta, and yellow filters mix subtractively on OHP. | 2014-03-18 |
C+65+15 | Crooke's radiometer with flashlight, arc lamp or IR source. | 2014-01-23 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2014-01-30 |
D+80+0 | Copper nail and iron nail in a lemon using a multimeter. | 2014-03-04 |
C+65+0 | Concave mirrors focus candle flame on thermopile across bench. | 2014-01-30 |
F+15+20 | Commercial solar cell spins propeller using halogen light source. | 2014-01-21 |
F+15+20 | Commercial solar cell spins propeller using halogen light source. | 2014-01-23 |
F+15+20 | Commercial solar cell spins propeller using halogen light source. | 2014-05-01 |
F+15+20 | Commercial solar cell spins propeller using halogen light source. | 2014-04-15 |
F+15+20 | Commercial solar cell spins propeller using halogen light source. | 2014-04-17 |
E+45+25 | Commercial Polaroid filters on an OHP. | 2014-03-18 |
C+30+65 | Collapse 1 gallon metal can with vacuum pump. | 2014-05-01 |
C+30+65 | Collapse 1 gallon metal can with vacuum pump. | 2014-01-30 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2014-01-30 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2014-01-28 |
F+45+10 | Cloud chamber with dry ice and alcohol shown on TV camera. | 2014-02-11 |
F+45+10 | Cloud chamber with dry ice and alcohol shown on TV camera. | 2014-02-13 |
E+40+40 | Clam shell mirrors: Floating coin illusion. | 2014-03-20 |
B+45+55 | Casio electronic synthesizer with amp and speaker. | 2014-03-11 |
C+55+15 | Brownian motion: Smoke particles viewed using TV camera. | 2014-01-28 |
C+55+15 | Brownian motion: Smoke particles viewed using TV camera. | 2014-01-30 |
C+55+20 | Brownian motion: Like C+55+0, with an aluminum disk added. | 2014-01-28 |
C+55+55 | Breathe helium, voice pitch rises; breathe SF6, voice pitch lowers. | 2014-03-13 |
C+55+55 | Breathe helium, voice pitch rises; breathe SF6, voice pitch lowers. | 2014-05-01 |
A+5+20 | Bowling ball pendulum swings back to nose. | 2014-01-21 |
A+5+20 | Bowling ball pendulum swings back to nose. | 2014-05-01 |
C+15+1 | Boiling water in paper cup; cup does not burn. | 2014-01-30 |
A+12+0 | Blocks, with various surfaces slide on an inclined plane. | 2014-02-04 |
E+40+5 | Blackboard optics: Light sources with plane and curved mirrors. | 2014-03-20 |
E+30+10 | Blackboard optics: Light sources with lucite lenses. | 2014-03-20 |
E+50+15 | Blackboard optics: Light source and lucite prism. | 2014-03-20 |
C+70+35 | Bimetallic strip: Brass/invar strip curves when heated. | 2014-01-28 |
B+45+15 | Bell ringing in a jar evacuated with pump. | 2014-03-11 |
A+20+20 | Bed of nails | 2014-02-04 |
A+20+20 | Bed of nails | 2014-05-01 |
B+35+20 | Beats with tuning forks on tuned cavities. | 2014-03-13 |
B+20+30 | Beaker is broken by sound from speaker. | 2014-03-13 |
A+50+35 | Ballistics car: Ball ejected from rolling car drops back in. | 2014-04-22 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2014-02-27 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2014-03-04 |
E+65+25 | As light bulb filament increases temp. its spectrum shifts red to blue. | 2014-03-18 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2014-03-06 |
A+0+35 | A ball swung on a string held by a sleeve. | 2014-02-04 |
A+0+35 | A ball swung on a string held by a sleeve. | 2014-04-29 |
A+0+35 | A ball swung on a string held by a sleeve. | 2014-02-06 |
D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2014-04-03 |
A+0+0 | "Coin and Feather" fall in an evacuated rotatable tube. | 2014-02-06 |