F+85+0 | YBaCuO pellet with magnet in liquid nitrogen on TV camera. | 2017-04-28 |
D+10+22 | Wimshurst machine, large or small. | 2017-02-27 |
D+10+22 | Wimshurst machine, large or small. | 2017-03-01 |
D+10+26 | Various Leyden jars to show. | 2017-03-06 |
D+10+26 | Various Leyden jars to show. | 2017-03-08 |
D+0+2 | Various capacitors to show. | 2017-03-06 |
D+0+2 | Various capacitors to show. | 2017-03-10 |
D+10+20 | Van de Graaff generator. | 2017-02-23 |
C+30+68 | Vacuum Cannon | 2017-01-23 |
D+30+22 | Torque on coil suspended between two magnets. | 2017-04-05 |
D+0+34 | Same as D+0+30 using oscilloscope to display waveform. | 2017-03-17 |
D+0+34 | Same as D+0+30 using oscilloscope to display waveform. | 2017-03-20 |
D+75+1 | Same as above: Secondary used for spot-welding. | 2017-04-21 |
D+75+3 | Same as above: Secondary used for small Jacob's ladder. | 2017-04-21 |
D+75+2 | Same as above: Secondary used for induction melting. | 2017-04-21 |
C+70+15 | Ring and ball: Ball fits through ring only after ring is heated. | 2017-01-18 |
D+5+0 | Resonance in a series LCR circuit using 120 v.a.c. | 2017-04-26 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2017-03-15 |
D+55+6 | Resistance thermometer: Iron coil in liquid Nitrogen and flame varies current. | 2017-03-13 |
D+5+32 | Plexiglas model of electromagnetic wave. | 2017-04-28 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2017-03-06 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2017-03-10 |
C+80+10 | P.V.T. surface model for water. | 2017-02-01 |
C+22+15 | Operating Sterling cycle engine, hot water powered. | 2017-02-06 |
C+55+10 | Mechanical model of a gas: Vibrating balls strike piston on OHP. | 2017-01-18 |
C+55+0 | Mechanical model of a gas: Vibrating balls on OHP. | 2017-01-18 |
B+10+0 | Mass on a spring. | 2017-04-26 |
D+35+4 | Making small magnets by breaking up a larger magnet. | 2017-04-12 |
D+5+22 | Magnetron assembly to show. | 2017-04-28 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2017-04-11 |
C+30+5 | Magdeburg's hemispheres(cast iron) evacuated, can't be separated. | 2017-01-20 |
D+20+2 | LR time constant: Square wave drives series LR on oscilloscope. | 2017-04-17 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2017-04-12 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2017-04-19 |
D+5+2 | LCR series resonance curve of V vs. F (2 - 20kHz) on an oscilloscope. | 2017-04-26 |
D+5+1 | LCR paradox | 2017-04-25 |
D+75+8 | Large Jacob's ladder. | 2017-04-21 |
D+10+30 | Kelvin water drop electrostatic charge generator. | 2017-03-03 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2017-04-14 |
D+30+12 | Iron filings around a current carrying coil on OHP to show field. | 2017-04-05 |
C+70+20 | Ice bomb: Iron sphere ruptured by freezing water. | 2017-01-20 |
C+0+0 | Humidity: Hygrometers to show. | 2017-01-25 |
D+55+4 | High current melts the fuse wire. | 2017-03-13 |
C+70+10 | Heated steel rod expands, raises pointer,breaks pin on cooling. | 2017-01-20 |
D+15+11 | Hand-cranked DC generator powers 120 volt lamp. | 2017-04-19 |
D+30+28 | Hall effect: Magnetic field induces a voltage in a neon plasma. | 2017-04-07 |
D+80+4 | Gotham cell: Assorted metal electrodes in sulfuric acid bath. | 2017-03-20 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2017-04-03 |
C+65+25 | FLIR T200 Infrared camera | 2017-02-03 |
C+55+60 | Equipartition of Energy: Different mass balls bounce out at different times. | 2017-01-23 |
C+55+60 | Equipartition of Energy: Different mass balls bounce out at different times. | 2017-01-25 |
C+22+0 | Engine models: Steam, 4-cycle Otto. | 2017-02-08 |
C+22+0 | Engine models: Steam, 4-cycle Otto. | 2017-02-10 |
C+22+0 | Engine models: Steam, 4-cycle Otto. | 2017-02-06 |
D+20+0 | Energy stored in large coil with soft iron core flashes bulb. | 2017-04-25 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2017-03-08 |
D+45+2 | Elementary split-ring armature DC motor. D+15+6 as a motor. | 2017-04-07 |
D+45+8 | Elementary motor: Magnet, wire and battery make a simple motor. | 2017-04-07 |
D+30+25 | Elementary motor: De La Rive Tube. | 2017-04-05 |
D+30+20 | Elementary motor: Bar on rails over solenoid with core. | 2017-04-03 |
D+15+2 | Elementary generator: Bar moved in magnetic field. | 2017-04-14 |
D+10+24 | Electrostatic pinwheel:Van de Graaff makes pinwheel spin. | 2017-02-15 |
D+10+24 | Electrostatic pinwheel:Van de Graaff makes pinwheel spin. | 2017-02-17 |
D+10+24 | Electrostatic pinwheel:Van de Graaff makes pinwheel spin. | 2017-02-24 |
D+10+28 | Electrostatic doorbell: Ball bangs between charged plates. | 2017-02-17 |
D+10+18 | Electrophorous: Cat fur on teflon, acetate on lucite. | 2017-02-13 |
D+0+22 | Effects of changing a D.C. voltage in a series RC circuit. | 2017-03-22 |
D+15+28 | Eddy currents: Neodymium Magnet Drop. | 2017-04-18 |
D+15+28 | Eddy currents: Neodymium Magnet Drop. | 2017-04-17 |
D+15+4 | Earth inductor: Coil spun in Earth's field makes voltage. | 2017-04-18 |
D+15+4 | Earth inductor: Coil spun in Earth's field makes voltage. | 2017-04-14 |
D+15+4 | Earth inductor: Coil spun in Earth's field makes voltage. | 2017-04-17 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2017-04-03 |
C+70+47 | Dippy bird: Large glass bird containing ether oscillates. | 2017-01-27 |
C+55+35 | Diffusion of Ammonia and HCl. | 2017-01-30 |
D+75+0 | Demountable transformer with many secondary coils from 10:1 to 1:46. | 2017-04-21 |
D+15+16 | Damped pendulum: Swinging metal disks damped in magnetic field. | 2017-04-18 |
D+15+16 | Damped pendulum: Swinging metal disks damped in magnetic field. | 2017-04-17 |
D+5+8 | Damped oscillations in a resonant LCR circuit on an oscilloscope. | 2017-04-26 |
D+5+6 | Crystal radio circuit for AM reception. | 2017-04-26 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2017-02-03 |
C+70+65 | Cooling by expansion: Jar with water compressed with air. | 2017-01-25 |
C+45+0 | Computer demo: Heat of fusion of tin. | 2017-02-01 |
D+30+8 | Compass needle shows field around a high current wire on bench top. | 2017-04-05 |
C+30+65 | Collapse 1 gallon metal can with vacuum pump. | 2017-01-23 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2017-01-25 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2017-01-27 |
D+10+14 | Charging an electroscope by induction. | 2017-02-13 |
D+10+14 | Charging an electroscope by induction. | 2017-02-15 |
D+10+12 | Charge resides on the outside of a conductor. | 2017-02-22 |
C+10+0 | Carnot cycle models: Piston/cylinder, PVT surface. | 2017-02-10 |
C+10+0 | Carnot cycle models: Piston/cylinder, PVT surface. | 2017-02-06 |
C+10+0 | Carnot cycle models: Piston/cylinder, PVT surface. | 2017-02-08 |
D+0+20 | Capacitor in series in an audio circuit: High pass filter. | 2017-03-17 |
D+0+20 | Capacitor in series in an audio circuit: High pass filter. | 2017-03-24 |
D+0+24 | Capacitor in parallel in an audio circuit: Low pass filter. | 2017-03-22 |
D+0+26 | Capacitor in parallel in a D.C. circuit. | 2017-03-24 |
C+55+15 | Brownian motion: Smoke particles viewed using TV camera. | 2017-01-27 |
C+55+20 | Brownian motion: Like C+55+0, with an aluminum disk added. | 2017-01-18 |
D+35+7 | Barkhausen effect model: Many tiny magnets on pivots on OHP. | 2017-04-12 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2017-04-14 |
C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2017-02-01 |
C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2017-01-30 |
D+75+6 | Automobile coil makes a spark. | 2017-04-21 |
D+0+0 | Attraction between horizontal plates of a charged capacitor. | 2017-03-03 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2017-02-13 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2017-04-07 |
D+20+4 | AC dimmer: Soft iron core in coil dims lamps. | 2017-04-25 |
D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2017-04-28 |