"Wards"

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.

This LCD clock keeps time using potatoes, soda, or plants.

This force table pulley includes a heavy-duty clamp and operates smoothly.

A Highly Effective Demonstration of Elastic Collision

Vivid Illustration of Thermoexpansion.

This launcher is easy to assemble, and it delivers consistent classroom results.

Economical and effective.

Ideal for Individual Study

Sized For Student Use.

The heavy base of the economy force table offers stability for all applications.

Demonstrate the conversion of mechanical energy into electrical energy by generating a static charge.