"Wards"

Every classroom that wants to investigate spectroscopy needs a good-quality spectrum tube and power supply.

The Fundamentals of physics force table is economical and convenient.

This 400,000 Volt van de Graaff kit is powerful, rugged, and economical.

Used to investigate wavelength in air.

A compact electromagnet.

This apparatus verifies that that the amount by which a material body is deformed (the strain) is linearly related to the force causing the deformation (the stress).

Show How Direct/Indirect Sunlight Provides Power

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An excellent set of materials for demonstrating electromagnetism and induced currents, the set includes two electromagnetic coils mounted on plastic saddle blocks, round and square iron cores, split round iron cores, a double core, and a card for showing lines of force. Set of two.

An easy, inexpensive way to effectively demonstrate conservation of energy and momentum

A set of four borosilicate glass tubes of different shapes connected together to illustrate that liquids will stand at the same level.

Easy to use because of its smaller diameter and simple means of hanging and loading, this gyroscope brings precession diagrams to life.

An excellent apparatus for showing the function of parts in an AC or DC motor and generator. Operates as either a shunt-wound or series motor. The unit is similar to the St. Louis Motor. Included with the motor are a powerful horseshoe magnet and an electromagnet.

These free-running plastic pulleys are durable in design.

A set of eight coils wound on individual plastic spools. Each coil has two binding posts.

This working model thermostat will demonstrate how differential expansion is used to control temperature. A bimetallic strip is used to open or close an electric circuit when temperature changes. The contacts will carry about three amperes. The unit can be operated with a 6 V lantern battery, low voltage power supply, or a blow dryer. Mounted on a metal base; approximately 15 cm high.