D+0+2 | Various capacitors to show. | 2025-03-06 |
D+30+22 | Torque on coil suspended between two magnets. | 2025-04-10 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2025-03-20 |
D+55+0 | Resistance boards: Series, parallel, Wheatstone bridge. | 2025-03-20 |
C+70+50 | Piston and cylinder compress/expand air measuring temp. and pressure. | 2025-01-28 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2025-03-06 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2025-03-11 |
C+22+15 | Operating Sterling cycle engine, hot water powered. | 2025-02-04 |
C+22+15 | Operating Sterling cycle engine, hot water powered. | 2025-02-06 |
C+55+0 | Mechanical model of a gas: Vibrating balls on OHP. | 2025-01-23 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2025-04-15 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2025-04-17 |
D+30+12 | Iron filings around a current carrying coil on OHP to show field. | 2025-04-15 |
D+30+6 | Iron filings and permanent magnets to show field on an OHP. | 2025-04-01 |
C+70+20 | Ice bomb: Iron sphere ruptured by freezing water. | 2025-01-21 |
C+70+10 | Heated steel rod expands, raises pointer,breaks pin on cooling. | 2025-01-21 |
D+30+28 | Hall effect: Magnetic field induces a voltage in a neon plasma. | 2025-04-10 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2025-04-03 |
C+70+55 | Fire syringe: paper is ignited in a cylinder with a piston. | 2025-01-28 |
D+10+13 | Faraday cage: blocks signal from portable radio | 2025-02-25 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2025-03-06 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2025-03-11 |
D+10+0 | Electric fields: Lines of force shown on an OHP. | 2025-02-20 |
D+15+4 | Earth inductor: Coil spun in Earth's field makes voltage. | 2025-04-17 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2025-04-03 |
D+35+20 | Curie temperature | 2025-04-17 |
C+45+0 | Computer demo: Heat of fusion of tin. | 2025-01-30 |
C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2025-01-28 |
D+10+12 | Charge resides on the outside of a conductor. | 2025-02-20 |
C+55+20 | Brownian motion: Like C+55+0, with an aluminum disk added. | 2025-01-23 |
C+70+35 | Bimetallic strip: Brass/invar strip curves when heated. | 2025-01-21 |
C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2025-01-30 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2025-04-01 |