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Monthly Archives: October 2019
Keep the home fires burning (now with added Physics)
Stove fans are used to improve the circulation of heat which in turn reduces hot and cold spots throughout the home.
It doesn’t have any batteries so how does it work?
The stove fan is powered by the Peltier effect. This effect is due to a temperature difference by transferring heat between two electrical junctions.
The thermoelectric circuit is generated since it is composed of materials with different Seebeck coefficients. This is due to the junctions being made of doped* semiconductors.
In a Peltier fan the configuration is that of a thermoelectric generator.
*Doping is the intentional introduction of impurities to modulate electrical properties
RED Gardens – New page
RED Gardens Project, (Research Education and Development) consists of 6 family scale gardens each one 100m2 (1000sqf) and following a different methodology, or approach to growing vegetables. There is also a larger Black Plot, of about 1000m2 (1/4 acre) which is exploring issues and possibilities of an intermediate scale growing space.
