Joule's Apparatus (Harper's Scan)

Autor:

NieznanyUnknown author

Credit:

Harper's New Monthly Magazine, No. 231, August, 1869.

Krótki link:

https://www.plwiki.pl/b/11dd83

źródło:

Wikimedia Commons

Wymiary:

1684 x 1387 Pixel (391625 Bytes)

Opis:

Engraving of James Joule's apparatus for measuring the mechanical equivalent of heat, in which altitude potential energy from the weight on the right is converted into heat at the left, through stirring of water.

Licencja:

Public domain