Needs New Photo
I2-45: CONVECTION - HIGH/LOW CANDLES IN CYLINDER
Category: I2 Transfer of Heat
Purpose:
Brainteaser regarding convection.
I2-44: CONVECTION - CANDLE IN CYLINDER
Category: I2 Transfer of Heat
Purpose:
Demonstrate the mechanism of convection.
M7-17: REFLECTION OF LIGHT FROM DIELECTRIC AND CONDUCTOR
Category: M7 Linear Polarization and Scattering
Purpose:
Demonstrate how light is polarized when it reflects from dielectric surfaces, and remains unpolarized after reflecting from conducting surfaces.
I1-41: THERMOELECTRIC MAGNET
Category: I1 Thermal Properties of Matter
Purpose:
Demonstrate production and use of thermoelectric current.
I1-22: WATER DENSITY VS TEMPERATURE
Category: I1 Thermal Properties of Matter
Purpose:
Demonstrate the change in the density of water with temperature.
I1-17: THERMOSTAT - MODEL
Category: I1 Thermal Properties of Matter
Purpose:
Model of use of a bimetal strip in a thermostat.
I1-15: THERMAL EXPANSION - PIN BREAKER
Category: I1 Thermal Properties of Matter
Purpose:
Demonstrate thermal expansion in a dramatic way.
I1-14: THERMAL EXPANSION OF ALUMINUM - OPTICAL LEVER
Category: I1 Thermal Properties of Matter
Purpose:
Demonstrate thermal expansion in a complicated way.
K2-48: EDDY CURRENT MOTOR`
Category: K2 Electromagnetic Induction
Purpose:
Show the use of eddy currents in producing a motor with few moving parts and no electrical brushes.
M7-05: ROPE AND COOKIE COOLERS
Category: M7 Linear Polarization and Scattering
Purpose:
Demonstrate the concept of polarization of a transverse wave.
K2-21: RUHMKORFF INDUCTION COIL
Category: K2 Electromagnetic Induction
Purpose:
Demonstrate induction of a very high voltage using a small voltage source.
K2-05: FARADAY'S EXPERIMENT - CONCENTRIC COILS
Category: K2 Electromagnetic Induction
Purpose:
Demonstrate mutual induction.
J6-33: ELECTROMAGNETIC GUN
Category: J6 Electromagnets
Purpose:
Demonstrate the force on a solenoid core, and to contrast forces on magnetic and non-magnetic cores.
J5-19: MAGNETIC FIELDS OF PARALLEL AND ANTIPARALLEL CURRENTS
Category: J5 Magnetostatics
Purpose:
Show the magnetic fields of parallel and antiparallel current-carrying wires.
L7-15: MICROSCOPE
Category: L7 Optical Instruments
Purpose:
Demonstrate how the optics of a microscope produces a magnified image.
L7-05: VIDEO CAMERA WITH VARIOUS LENSES
Category: L7 Optical Instruments
Purpose:
Demonstrate various lenses for a video camera.
J2-01: WIMSHURST MACHINE
Purpose:
Generate high electrostatic potentials.
K1-31: MAGNETOHYDRODYNAMIC GENERATOR
Category: K1 Forces on Moving Particles
Purpose:
Illustrate magnetohydrodynamic forces.
K1-13: CATHODE RAY TUBE - DE LA RIVE MAGNETIC EFFECT
Category: K1 Forces on Moving Particles
Purpose:
Illustrate bending of an electron beam in a magnetic field.
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K5-01: PIEZOELECTRICITY
Demonstration of a piezoelectric crystal Read More
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K5-02: PIEZOELECTRIC CRYSTAL - AUDIBLE
Demonstrate that a piezoelectric crystal converts electrical impulses into physical vibrations Read More
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K5-03: PIEZOELECTRIC IGNITOR
Show a commercial use for piezoelectricity Read More
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K5-04: PIEZOELECTRIC GUN
Application of piezoelectricity to produce copious quantities of electric charge Read More
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K5-11: BATTERY MODEL
Simple model of a battery using a human as the source of energy Read More
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K5-12 BATTERY AND CURRENT - WORKING MODEL
Model of battery with circuit attached
Read More
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K5-13: ELECTRIC CURRENT - MODEL
Indicate how electrons really flow through a conductor Read More
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K5-14: ELECTRIC CELL
Demonstrate how an electric cell is formed Read More
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K5-16: CARRIER CURRENT DENSITY MODEL
Model the density of carriers crossing a plane Read More
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K5-21: AC PLUG CIRCUIT CHECKER
Check the wiring of 110VAC power sockets Read More
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K5-22: AC PLUG CIRCUIT CHECKER CHECKER
Demonstrate each different kind of wiring error Read More
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K5-23: ROTATING TWO-COLOR LED
Demonstrate that what comes out of a 110 VAC plug is in fact alternating current Read More
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K5-31 OHM'S LAW
Demonstrates relationship between current, voltage, and resistance Read More
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K5-32: RESISTANCE VS DIAMETER AND LENGTH
Determine how resistance varies as a function of diameter and length for the same material Read More
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K5-33 CONDUCTIVITY OF SALT SOLUTION
Shows that pure water is not conducting, but a solution of an electrolyte is conducting
Read More
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K5-34: THERMAL COEFFICIENT OF RESISTANCE IN COPPER
Show that the resistance of copper changes linearly with temperature Read More
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K5-35: RESISTORS AT LN TEMPERATURE
Illustrate materials with both positive and negative temperature coefficients of resistivity Read More
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K5-36: RESISTORS AT LN TEMPERATURE - LIGHT BULB INDICATOR
Demonstrate materials with both positive and negative temperature coefficients of resistance Read More
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K5-41: V-I CURVES FOR OHMIC AND NON-OHMIC DEVICES
Illustrate resistive properties of resistors and diodes Read More
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K5-42: TRANSISTOR
Demonstrate a transistor circuit Read More
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K5-43: NON-OHMIC DEVICE - V VS. I
Demonstrates the non-linearity of the V vs I curve for a diode
Read More
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K5-44: NON-OHMIC DEVICE - LIGHT BULB
Show the change in resistance of a light bulb with temperature Read More
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K5-45: SEMICONDUCTOR MODEL
Model of semiconductor Read More
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