D+35+14 | YBaCuO pellet with magnet in liquid nitrogen on TV camera. | 2017-10-04 |
D+35+0 | Wobbly bar: Magnets in frame balanced by repulsive forces. | 2017-09-29 |
D+10+26 | Various Leyden jars to show. | 2017-09-13 |
D+0+2 | Various capacitors to show. | 2017-09-13 |
D+30+24 | Vacuum tube with screen shows cathode rays bent with a magnet. | 2017-09-27 |
F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2017-11-15 |
E+45+0 | Two picket fence sections with slats and rope to make waves. | 2017-10-18 |
F+30+0 | Tunneling:Microwave analogy using wax prisms. | 2017-11-20 |
E+50+0 | Total internal reflection: 45 deg-45 deg-90 deg prism using arc lamp. | 2017-10-25 |
D+30+22 | Torque on coil suspended between two magnets. | 2017-09-27 |
E+25+25 | Thin film interference with optical flats and sodium lamp. | 2017-11-07 |
E+25+45 | Thin film interference with mercury light on mica sheets. | 2017-11-07 |
E+25+45 | Thin film interference with mercury light on mica sheets. | 2017-11-06 |
B+25+20 | Suspended slinky on threads for compression wave. | 2017-10-18 |
E+10+0 | Single slit diffraction using laser beam through adjustable slit. | 2017-11-08 |
E+10+0 | Single slit diffraction using laser beam through adjustable slit. | 2017-11-13 |
D+0+8 | Series capacitor array. | 2017-09-18 |
D+10+16 | Separation of charge using electrical tape and an electroscope. | 2017-08-24 |
D+10+16 | Separation of charge using electrical tape and an electroscope. | 2017-08-25 |
D+5+12 | Seibt effect: Wire wound glass tube with 510 transmitter. | 2017-10-16 |
D+5+12 | Seibt effect: Wire wound glass tube with 510 transmitter. | 2017-10-18 |
F+20+5 | Rutherford scattering model: Steel balls, launcher, and "hill". | 2017-11-17 |
B+25+10 | Rubber rope stretched across front of room. | 2017-10-18 |
E+40+25 | Retrodirective reflector: Silvered right angle prism, using laser. | 2017-10-23 |
E+40+25 | Retrodirective reflector: Silvered right angle prism, using laser. | 2017-10-20 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2017-09-18 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2017-09-20 |
D+55+0 | Resistance boards: Series, parallel, Wheatstone bridge. | 2017-09-20 |
D+55+0 | Resistance boards: Series, parallel, Wheatstone bridge. | 2017-09-25 |
E+40+30 | Reflections from concave and convex mirrors with lighted arrow. | 2017-10-23 |
E+40+30 | Reflections from concave and convex mirrors with lighted arrow. | 2017-10-25 |
E+40+30 | Reflections from concave and convex mirrors with lighted arrow. | 2017-10-27 |
E+30+17 | Real images: Lighted ‘F-object’ and an astygmatic lens. | 2017-11-01 |
E+30+15 | Real images: Lighted arrow image and various lenses. | 2017-10-27 |
D+5+32 | Plexiglas model of electromagnetic wave. | 2017-10-16 |
D+10+4 | Pith balls on thread, with positive and negative charged rods. | 2017-08-24 |
D+10+4 | Pith balls on thread, with positive and negative charged rods. | 2017-08-25 |
E+30+35 | Pincushion and barrel distortion of lenses using arc lamp. | 2017-11-01 |
D+0+4 | Parallel plate capacitor with dielectric materials and electroscope. | 2017-09-18 |
D+0+10 | Parallel capacitors array: A charged capacitor charges the others. | 2017-09-18 |
D+35+9 | Para and diamagnetic materials in magnetic field with OHP. | 2017-10-04 |
D+15+1 | Oscillating magnets in coupled coils | 2017-10-06 |
E+25+42 | Oil film interference on water. | 2017-11-03 |
E+30+65 | Model of the eye, with near/far sight lenses, using arc lamp. | 2017-10-30 |
E+30+65 | Model of the eye, with near/far sight lenses, using arc lamp. | 2017-11-01 |
E+45+5 | Microwaves with grid. Transmitter and receiver are polarized. | 2017-10-18 |
E+45+5 | Microwaves with grid. Transmitter and receiver are polarized. | 2017-10-20 |
E+25+10 | Microwave interference with single and double slits. | 2017-11-01 |
E+25+10 | Microwave interference with single and double slits. | 2017-11-03 |
D+35+2 | Making a magnet by electromagnetic induction. | 2017-10-02 |
D+35+2 | Making a magnet by electromagnetic induction. | 2017-10-04 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2017-09-29 |
D+30+14 | Magnetic field around a solenoid with pivoting probe magnet. | 2017-10-02 |
D+15+45 | Magnet inserted and withdrawn from copper ring causes ring to swing. | 2017-10-09 |
D+5+16 | Lodge's experiment: Spark gap radio transmitter and receiver. | 2017-10-16 |
D+5+16 | Lodge's experiment: Spark gap radio transmitter and receiver. | 2017-10-18 |
E+25+55 | Lloyd's mirror: Laser beam interferes with reflection from glass. | 2017-11-07 |
E+25+55 | Lloyd's mirror: Laser beam interferes with reflection from glass. | 2017-11-08 |
E+25+55 | Lloyd's mirror: Laser beam interferes with reflection from glass. | 2017-11-03 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2017-10-09 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2017-09-29 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2017-10-02 |
D+35+12 | Linear motor: An iron core jumps into a solenoid. | 2017-10-04 |
E+10+45 | Limit of resolution: Two small lamps on adjustable slide. | 2017-11-08 |
E+10+45 | Limit of resolution: Two small lamps on adjustable slide. | 2017-11-13 |
F+15+5 | Light through different filters into phototube changes current. | 2017-11-15 |
E+50+25 | Light from arc lamp enters direct view prism emerges as spectrum. | 2017-10-23 |
E+50+25 | Light from arc lamp enters direct view prism emerges as spectrum. | 2017-10-25 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2017-10-06 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2017-10-09 |
D+5+34 | LEDs oscillate in stored energy LC circuit. | 2017-10-11 |
E+25+15 | Laser beam through various slit and grating combinations. | 2017-11-07 |
E+25+15 | Laser beam through various slit and grating combinations. | 2017-11-06 |
E+25+15 | Laser beam through various slit and grating combinations. | 2017-11-08 |
E+25+15 | Laser beam through various slit and grating combinations. | 2017-11-13 |
E+10+5 | Laser beam through sets of 1, 2, or multiple electro-formed slits. | 2017-11-08 |
E+10+5 | Laser beam through sets of 1, 2, or multiple electro-formed slits. | 2017-11-13 |
D+75+4 | Large Tesla coil. 15 inch discharge. | 2017-10-16 |
D+30+1 | Large compass needle on stand. | 2017-09-27 |
D+10+30 | Kelvin water drop electrostatic charge generator. | 2017-08-30 |
D+10+30 | Kelvin water drop electrostatic charge generator. | 2017-09-01 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2017-10-06 |
D+30+10 | Iron filings around a high current vertical wire on OHP to show field. | 2017-09-29 |
D+30+12 | Iron filings around a current carrying coil on OHP to show field. | 2017-09-29 |
D+30+6 | Iron filings and permanent magnets to show field on an OHP. | 2017-09-27 |
D+55+4 | High current melts the fuse wire. | 2017-09-20 |
D+55+4 | High current melts the fuse wire. | 2017-09-25 |
D+15+11 | Hand-cranked DC generator powers 120 volt lamp. | 2017-10-04 |
E+40+15 | Hand held plane mirror and right angle mirror. | 2017-10-23 |
E+30+25 | Fresnel lenses to show. | 2017-10-27 |
D+0+5 | Force on a dielectric in a capacitor | 2017-09-18 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2017-09-27 |
D+10+10 | Faraday's ice pail: Charge induced on the outside of a pail. | 2017-09-06 |
D+10+10 | Faraday's ice pail: Charge induced on the outside of a pail. | 2017-09-08 |
D+10+13 | Faraday cage: blocks signal from portable radio | 2017-09-08 |
D+15+35 | Equivalence of large and small loops around enclosed flux | 2017-10-06 |
D+15+35 | Equivalence of large and small loops around enclosed flux | 2017-10-09 |
D+20+0 | Energy stored in large coil with soft iron core flashes bulb. | 2017-10-09 |
D+20+0 | Energy stored in large coil with soft iron core flashes bulb. | 2017-10-11 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2017-09-13 |
D+30+20 | Elementary motor: Bar on rails over solenoid with core. | 2017-09-27 |
D+10+24 | Electrostatic pinwheel:Van de Graaff makes pinwheel spin. | 2017-08-28 |
D+10+24 | Electrostatic pinwheel:Van de Graaff makes pinwheel spin. | 2017-08-30 |
D+10+18 | Electrophorous: Cat fur on teflon, acetate on lucite. | 2017-08-25 |
F+10+0 | Electron diffraction by aluminum and graphite on CRT. | 2017-11-15 |
F+10+0 | Electron diffraction by aluminum and graphite on CRT. | 2017-11-17 |
D+15+28 | Eddy currents: Neodymium Magnet Drop. | 2017-10-06 |
D+0+16 | Discharging a capacitor through a lamp. | 2017-09-13 |
D+30+2 | Dip needle compass. | 2017-09-27 |
E+15+20 | Diffraction patterns of various gratings using He-Ne laser. | 2017-11-08 |
D+75+0 | Demountable transformer with many secondary coils from 10:1 to 1:46. | 2017-10-16 |
D+15+16 | Damped pendulum: Swinging metal disks damped in magnetic field. | 2017-10-06 |
D+30+8 | Compass needle shows field around a high current wire on bench top. | 2017-09-27 |
E+45+25 | Commercial Polaroid filters on an OHP. | 2017-11-03 |
E+45+25 | Commercial Polaroid filters on an OHP. | 2017-10-20 |
E+40+40 | Clam shell mirrors: Floating coin illusion. | 2017-10-25 |
D+10+14 | Charging an electroscope by induction. | 2017-08-24 |
D+10+14 | Charging an electroscope by induction. | 2017-08-25 |
D+10+12 | Charge resides on the outside of a conductor. | 2017-08-30 |
D+10+12 | Charge resides on the outside of a conductor. | 2017-09-01 |
D+10+12 | Charge resides on the outside of a conductor. | 2017-09-06 |
D+10+12 | Charge resides on the outside of a conductor. | 2017-09-08 |
D+0+6 | Capacitor doorbell driven by Van de Graaff generator. | 2017-09-18 |
D+10+8 | Braun and Leaf electroscopes. | 2017-08-24 |
D+10+8 | Braun and Leaf electroscopes. | 2017-08-25 |
E+40+5 | Blackboard optics: Light sources with plane and curved mirrors. | 2017-10-23 |
E+40+5 | Blackboard optics: Light sources with plane and curved mirrors. | 2017-10-25 |
E+30+10 | Blackboard optics: Light sources with lucite lenses. | 2017-10-25 |
E+30+10 | Blackboard optics: Light sources with lucite lenses. | 2017-10-27 |
E+30+10 | Blackboard optics: Light sources with lucite lenses. | 2017-10-30 |
E+30+10 | Blackboard optics: Light sources with lucite lenses. | 2017-11-01 |
E+50+15 | Blackboard optics: Light source and lucite prism. | 2017-10-23 |
E+50+15 | Blackboard optics: Light source and lucite prism. | 2017-10-25 |
E+50+15 | Blackboard optics: Light source and lucite prism. | 2017-10-20 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2017-10-06 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2017-10-04 |
D+75+6 | Automobile coil makes a spark. | 2017-10-11 |
D+75+6 | Automobile coil makes a spark. | 2017-10-16 |
D+0+0 | Attraction between horizontal plates of a charged capacitor. | 2017-09-08 |
D+10+6 | Attraction and repulsion of charged styrofoam balls. | 2017-08-25 |
E+30+45 | Astronomical telescope: Using objective and eyepiece lenses. | 2017-10-30 |
E+30+45 | Astronomical telescope: Using objective and eyepiece lenses. | 2017-11-01 |
E+40+0 | Arc lamp and mirror on large disk rotate showing beam angles. | 2017-10-23 |
E+40+0 | Arc lamp and mirror on large disk rotate showing beam angles. | 2017-10-20 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2017-09-29 |
E+10+10 | Airy's disk: Pinhole diffraction using laser beam. | 2017-11-08 |
E+10+10 | Airy's disk: Pinhole diffraction using laser beam. | 2017-11-13 |
E+30+5 | Air, glass and water lenses in water tank with arc lamp. | 2017-10-30 |