Solar 24ct Gold Plated Stirling Engine
This micro Stirling engine is plated with 24 karat gold. Invented by Robert Stirling in 1816 as a ‘hot-air engine’, the Stirling Engine uses a hot heat source and cold heat sink to expand and contract air in a sealed cylinder, thereby moving a piston up and down. This desktop engine uses a small alcohol burner for heat. Exceptional quality and craftsmanship, all of Inpro Solar’s products are made in Germany and make excellent executive gifts. Inpro Solar was founded in 1981 at the beginning of the solar technology revolution.Price: $399.99