D+0+12 | Visual charge/discharge of a capacitor through a load. | 2023-03-16 |
A+70+5 | Vector arrows of various sizes and colors fit in wooden bases. | 2023-04-13 |
A+70+5 | Vector arrows of various sizes and colors fit in wooden bases. | 2023-02-14 |
A+70+5 | Vector arrows of various sizes and colors fit in wooden bases. | 2023-02-16 |
D+0+2 | Various capacitors to show. | 2023-03-07 |
D+10+20 | Van de Graaff generator. | 2023-02-09 |
D+10+20 | Van de Graaff generator. | 2023-02-14 |
D+30+24 | Vacuum tube with screen shows cathode rays bent with a magnet. | 2023-03-21 |
E+60+5 | Total internal reflection/critical angle: Nakamura water tank. | 2023-04-27 |
D+30+22 | Torque on coil suspended between two magnets. | 2023-03-23 |
D+0+8 | Series capacitor array. | 2023-03-07 |
C+70+15 | Ring and ball: Ball fits through ring only after ring is heated. | 2023-01-17 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2023-03-14 |
D+55+6 | Resistance thermometer: Iron coil in liquid Nitrogen and flame varies current. | 2023-03-14 |
D+55+0 | Resistance boards: Series, parallel, Wheatstone bridge. | 2023-03-16 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2023-03-09 |
D+0+10 | Parallel capacitors array: A charged capacitor charges the others. | 2023-03-07 |
C+80+10 | P.V.T. surface model for water. | 2023-01-24 |
C+62+0 | Molecular models, ball and stick. | 2023-01-17 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2023-04-11 |
C+60+5 | LN2 demos: pewter bell and spring, color change tube, LN2 cannon. | 2023-01-19 |
C+65+2 | Light the Match. | 2023-01-31 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2023-04-25 |
E+25+15 | Laser beam through various slit and grating combinations. | 2023-04-27 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2023-04-18 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2023-04-20 |
D+30+10 | Iron filings around a high current vertical wire on OHP to show field. | 2023-03-21 |
D+30+10 | Iron filings around a high current vertical wire on OHP to show field. | 2023-04-11 |
D+30+12 | Iron filings around a current carrying coil on OHP to show field. | 2023-04-11 |
C+70+20 | Ice bomb: Iron sphere ruptured by freezing water. | 2023-01-19 |
D+55+4 | High current melts the fuse wire. | 2023-03-14 |
C+20+0 | Heat water in "O" shaped tube adding a dye. | 2023-01-31 |
D+15+11 | Hand-cranked DC generator powers 120 volt lamp. | 2023-04-20 |
D+30+28 | Hall effect: Magnetic field induces a voltage in a neon plasma. | 2023-04-06 |
C+80+2 | Freezing liquid Nitrogen. | 2023-01-24 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2023-03-21 |
C+70+55 | Fire syringe: paper is ignited in a cylinder with a piston. | 2023-01-26 |
D+10+13 | Faraday cage: blocks signal from portable radio | 2023-02-16 |
D+20+0 | Energy stored in large coil with soft iron core flashes bulb. | 2023-04-25 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2023-03-09 |
D+15+2 | Elementary generator: Bar moved in magnetic field. | 2023-04-18 |
D+10+0 | Electric fields: Lines of force shown on an OHP. | 2023-02-07 |
D+10+0 | Electric fields: Lines of force shown on an OHP. | 2023-02-09 |
D+15+4 | Earth inductor: Coil spun in Earth's field makes voltage. | 2023-04-18 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2023-03-21 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2023-03-23 |
D+0+16 | Discharging a capacitor through a lamp. | 2023-03-09 |
D+75+0 | Demountable transformer with many secondary coils from 10:1 to 1:46. | 2023-04-20 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2023-01-31 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2023-01-26 |
D+10+14 | Charging an electroscope by induction. | 2023-02-07 |
D+10+12 | Charge resides on the outside of a conductor. | 2023-02-16 |
E+40+5 | Blackboard optics: Light sources with plane and curved mirrors. | 2023-04-27 |
C+70+35 | Bimetallic strip: Brass/invar strip curves when heated. | 2023-01-17 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2023-04-13 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2023-02-07 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2023-04-06 |
D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2023-04-27 |