Easy To Make Thermocouple Thermopile
In our article What is a Peltier Cooler we introduced the Seebeck Effect. When two different types of metal are joined together and there is a temperature difference between the two junctions, electrical current flows. What is a Thermocouple This construct of three wires, one of one …

What is a Peltier Cooler
In 1834 French meteorologist Jean Peltier connected a copper wire to each end of a wire made from bismuth and then connected the free ends of the copper wires to the terminals of a battery. He discovered quite by chance that where the current flows from …

Stirling Engine Solar Power
A solar Stirling Engine (or Hot Air Engine) takes advantage of the fact that concentrated sunlight is a fantastic heat source, and as such can be used to generate electricity more efficiently than photovoltaic solar panels. The Stirling Engine was developed in 1816 by Robert Stirling in …

Copper Oxide Thermoelectric Generator
One of the simplest examples of a thermoelectric generator (TEG) can be made even by school children very easily and cheaply and demonstrates the effects of a thermoelectric junction beautifully. All that is needed is some copper wire, a heating source such as a gas …