Is your refrigerator eco friendly.....!??
Check Einstein’s Refrigerator:;...
It’s a lesser known part of Einstein’s legacy, but the physicist made a very important contribution to the field of low-impact refrigerators. From 1926 to 1933, Einstein and partner Leo Szilard developed 7 models of his fridge, which cooled contents via pressurized gases (in contrast to the fridge of today, which compresses manmade greenhouse gases known as freons). The unit contained no moving parts and required no electricity, only a modest heat source.
