D+35+14 | YBaCuO pellet with magnet in liquid nitrogen on TV camera. | 2018-11-01 |
D+55+2 | Watt's law: Variable resistor, glow coil, volt and amp meter. | 2018-10-30 |
A+50+5 | Water projector: Adjustable angle water jet in front of grid. | 2018-08-28 |
E+45+0 | Two picket fence sections with slats and rope to make waves. | 2018-11-29 |
B+25+0 | Transverse wave model, hand-cranked. | 2018-11-15 |
D+10+2 | Transparency: Mapping of an electric field. | 2018-08-28 |
D+10+2 | Transparency: Mapping of an electric field. | 2018-10-30 |
E+60+5 | Total internal reflection/critical angle: Nakamura water tank. | 2018-11-27 |
D+30+22 | Torque on coil suspended between two magnets. | 2018-11-08 |
A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2018-09-27 |
A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2018-10-02 |
A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2018-09-25 |
E+25+25 | Thin film interference with optical flats and sodium lamp. | 2018-11-27 |
D+70+0 | Thermocouple and thermopile, both make electricity from heat. | 2018-11-06 |
A+5+5 | The Trebuchet | 2018-08-28 |
A+5+5 | The Trebuchet | 2018-08-30 |
E+10+0 | Single slit diffraction using laser beam through adjustable slit. | 2018-11-27 |
D+60+6 | Several commercial solar cells. | 2018-11-01 |
A+30+10 | Rotational inertia device: Sliding weights on rotating rod. | 2018-10-02 |
A+30+15 | Rotating chair with dumbbells or weighted bicycle wheel. | 2018-09-27 |
A+50+20 | Rocket is filled with water and compressed air and launched vertically. | 2018-09-25 |
D+55+6 | Resistance thermometer: Iron coil in liquid Nitrogen and flame varies current. | 2018-11-01 |
A+5+22 | Potential energy of spring imparted to ball on ramp | 2018-08-30 |
C+70+50 | Piston and cylinder compress/expand air measuring temp. and pressure. | 2018-09-11 |
C+22+15 | Operating Sterling cycle engine, hot water powered. | 2018-09-13 |
E+25+30 | Newton's rings by transmission or reflection on arc bench. | 2018-11-29 |
E+5+10 | Newton's color disk: When rotated,appears white. | 2018-11-27 |
F+80+0 | Mousetrap chain reaction experiment. | 2018-10-18 |
A+50+10 | Monkey and the hunter. | 2018-08-28 |
C+10+5 | Mechanical model of a gas: Vibrating balls strike piston on OHP. | 2018-09-06 |
C+55+10 | Mechanical model of a gas: Vibrating balls strike piston on OHP. | 2018-09-11 |
C+55+0 | Mechanical model of a gas: Vibrating balls on OHP. | 2018-09-06 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2018-11-06 |
A+0+45 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2018-09-25 |
A+0+45 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2018-09-27 |
B+25+5 | Longitudinal wave model, hand-cranked. | 2018-11-15 |
E+25+15 | Laser beam through various slit and grating combinations. | 2018-11-29 |
E+25+0 | Large wood model of a double slit with hinged waves. | 2018-11-29 |
D+30+6 | Iron filings and permanent magnets to show field on an OHP. | 2018-11-08 |
B+35+10 | Interference of sound waves from two speakers, same generator. | 2018-11-15 |
B+45+42 | Hoot Tube | 2018-11-15 |
C+20+0 | Heat water in "O" shaped tube adding a dye. | 2018-09-13 |
C+20+0 | Heat water in "O" shaped tube adding a dye. | 2018-09-18 |
F+65+5 | Geiger counter. | 2018-10-04 |
A+14+5 | Force table: Forces on a car on a horizontal table. | 2018-09-20 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2018-11-06 |
F+45+0 | Expansion cloud chamber with water and compression bulb. | 2018-10-04 |
A+35+10 | Elastic collisions: Five hanging balls and two unequal hanging balls. | 2018-09-27 |
A+35+10 | Elastic collisions: Five hanging balls and two unequal hanging balls. | 2018-10-02 |
A+35+10 | Elastic collisions: Five hanging balls and two unequal hanging balls. | 2018-09-25 |
D+15+26 | Eddy currents:Small magnet slowly drops between aluminum rails. | 2018-11-01 |
D+75+0 | Demountable transformer with many secondary coils from 10:1 to 1:46. | 2018-11-08 |
D+15+30 | Demonstration of dependence of number of coils on induced flux | 2018-11-01 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2018-08-28 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2018-09-06 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2018-09-11 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2018-09-13 |
C+15+0 | Copper/wood cylinder wrapped with paper over bunsen burner. | 2018-09-18 |
D+60+8 | Commercial solar cell spins propeller using small arc lamp. | 2018-11-06 |
A+20+0 | Card snapped from under a weight by a leaf spring. | 2018-09-20 |
A+50+25 | Carbon dioxide propelled rocket flies across room on wire. | 2018-09-25 |
A+50+25 | Carbon dioxide propelled rocket flies across room on wire. | 2018-09-27 |
A+5+15 | Brachistochrone: Three balls falling along different trajectories. | 2018-08-28 |
A+5+15 | Brachistochrone: Three balls falling along different trajectories. | 2018-08-30 |
C+70+75 | Boyle's Law: At constant T, Pressure times Volume is a constant. | 2018-09-11 |
C+50+5 | Black balls and white balls in a box are shaken. | 2018-09-06 |
C+70+35 | Bimetallic strip: Brass/invar strip curves when heated. | 2018-09-11 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2018-11-01 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2018-11-06 |
A+0+52 | Banked turns: slot car around an oval track | 2018-09-25 |
C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2018-09-13 |
C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2018-09-18 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2018-10-30 |
A+0+0 | "Coin and Feather" fall in an evacuated rotatable tube. | 2018-09-20 |