"Activités de comprehensive"

Bring the 2nd Law of Thermodynamics to life.

Ball and Ring Apparatus demonstrates thermal expansion.

The Precision Linear Expansion Apparatus produces accurate determinations of the coefficient of expansion.

Effective Method of Showing Normally Invisible Currents

Brass ball mounted on brass rod for thermal expansion experiments.

Bimetallic strips attached to wooden handle to study thermal energy.

This is a classic example of thermodynamics in action.

Close-Up Cross Section.

A useful set for density, specific heat and gravity.

Bimetallic strips attached to wood blocks to study thermal energy.

Simple tool to explore the thermal properties of matter.

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.

Laminated for long use.

Bring Some Heat Into the Classroom

A set to demonstrate the rise in temperature when a fixed mass of gas is compressed.

This new conductivity bar set features sensitive liquid crystal temperature indicators, which are attached to the front of each of four metal bars.