Demo used for 7B-spring/Catherine Bordel 7B/2026

Provides the Demo List.
UCB IndexTitlesort ascendingDate
D+55+2 Watt's law: Variable resistor, glow coil, volt and amp meter.2026-03-18
D+0+2 Various capacitors to show.2026-03-09
D+10+2 Transparency: Mapping of an electric field.2026-02-13
B+10+2 Torsion pendulum with removable weights.2026-05-01
D+30+22 Torque on coil suspended between two magnets.2026-04-03
B+10+1 Simple pendulum: Ball on a string.2026-05-01
B+10+1 Simple pendulum: Ball on a string.2026-02-20
C+15+03 Set of metal rods: Heat-sensitive paint changes color.2026-01-30
D+75+1 Same as above: Secondary used for spot-welding.2026-04-24
C+70+15 Ring and ball: Ball fits through ring only after ring is heated.2026-01-21
D+55+18 Resistor analog: Marbles cascading down pin board.2026-03-16
D+55+0 Resistance boards: Series, parallel, Wheatstone bridge.2026-03-18
D+55+0 Resistance boards: Series, parallel, Wheatstone bridge.2026-03-20
D+0+4 Parallel plate capacitor with dielectric materials and electroscope.2026-03-11
D+0+4 Parallel plate capacitor with dielectric materials and electroscope.2026-03-13
D+0+4 Parallel plate capacitor with dielectric materials and electroscope.2026-03-16
C+55+0 Mechanical model of a gas: Vibrating balls on OHP.2026-01-23
C+35+0 Mechanical equivalent of heat: Aluminum cylinder, crank, rope with 5 kg weight and large LED display.2026-01-28
B+10+0 Mass on a spring.2026-05-01
D+30+14 Magnetic field around a solenoid with pivoting probe magnet.2026-04-08
D+20+2 LR time constant: Square wave drives series LR on oscilloscope.2026-04-27
C+65+2 Light the Match.2026-01-30
D+15+24 Levitator: Aluminum dish floats four inches off platform.2026-04-22
D+5+34 LEDs oscillate in stored energy LC circuit.2026-04-29
D+55+10 Large tungsten filament lamp; as it heats, current drops.2026-03-18
B+10+20 Large damped oscillator (mass on spring) with various damping disks.2026-05-01
D+15+20 Jumping rings: High current AC coil causes rings to jump.2026-04-22
D+30+10 Iron filings around a high current vertical wire on OHP to show field.2026-04-06
D+30+10 Iron filings around a high current vertical wire on OHP to show field.2026-04-08
D+30+12 Iron filings around a current carrying coil on OHP to show field.2026-04-08
D+30+12 Iron filings around a current carrying coil on OHP to show field.2026-04-13
D+55+4 High current melts the fuse wire.2026-03-16
C+70+6 Heated horizontal nichrome wire stretches, weight sags.2026-01-21
C+20+0 Heat water in "O" shaped tube adding a dye.2026-01-30
D+30+28 Hall effect: Magnetic field induces a voltage in a neon plasma.2026-04-03
D+30+28 Hall effect: Magnetic field induces a voltage in a neon plasma.2026-04-06
D+15+6 Generator: Coil with DC commutator rotates between magnets.2026-04-17
C+80+2 Freezing liquid Nitrogen.2026-01-26
D+30+18 Force on a current carrying wire in a magnetic field.2026-04-01
D+10+13 Faraday cage: blocks signal from portable radio2026-02-27
C+22+0 Engine models: Steam, 4-cycle Otto.2026-02-04
D+20+0 Energy stored in large coil with soft iron core flashes bulb.2026-04-24
D+20+0 Energy stored in large coil with soft iron core flashes bulb.2026-04-27
D+0+28 Energy storage in a commercial capacitor. Loud bang!2026-03-11
D+15+2 Elementary generator: Bar moved in magnetic field.2026-04-20
D+10+0 Electric fields: Lines of force shown on an OHP.2026-02-13
D+15+28 Eddy currents: Neodymium Magnet Drop.2026-04-22
D+30+26 E/M tube: Circular bending of an electron beam in a magnetic field.2026-04-01
C+50+30 Drum in glycerine rotates to smear line of dye into a plane and back.2026-02-09
D+15+30 Demonstration of dependence of number of coils on induced flux2026-04-17
D+15+16 Damped pendulum: Swinging metal disks damped in magnetic field.2026-04-22
D+5+8 Damped oscillations in a resonant LCR circuit on an oscilloscope.2026-04-29
C+70+25 Cubic coefficient of expansion: Dissectable wooden cube.2026-01-23
C+15+0 Copper/wood cylinder wrapped with paper over bunsen burner.2026-01-30
C+5+0 Computer demo: Nesting can calorimeter, runs 3 min.2026-01-26
C+45+0 Computer demo: Heat of fusion of tin.2026-01-28
D+0+14 Computer demo: Charge/discharge of a capacitor, runs at least 1 min.2026-03-20
D+30+8 Compass needle shows field around a high current wire on bench top.2026-04-01
D+10+12 Charge resides on the outside of a conductor.2026-02-27
C+50+5 Black balls and white balls in a box are shaken.2026-02-06
D+15+0 Bar magnet induces current in a coil, shown on galvanometer.2026-04-15
D+15+12 Back EMF in a series DC motor with large flywheel.2026-04-22
D+30+16 Ampere's law: Currents in parallel wires attract or repel.2026-04-06
D+15+8 Alternator: Coil with AC commutator rotates between magnets.2026-04-17
D+20+4 AC dimmer: Soft iron core in coil dims lamps.2026-04-24
Provides the Special Request Demo List.
UCB IndexTitlesort ascendingDate
-I'd like to show the oscillatory motion of an electric dipole in an external electric field. Roberto came up with a home-made demo last year but I can't find it in the demo catalog. Could you please check with him if you could replicate that?2026-02-18
-I know that it might be too many demos with Marti gone this week so feel free to remove some if necessary.2026-04-22
-Can I get the various pieces of wood with holes to stick some needles in them? I'd like to use them as visual support to introduce electric flux.2026-02-20
-Can I get the set of cardboard tubes and needles to illustrate Gauss' law?2026-02-23