[Red Badger]

https://www.treehugger.com/sustainable-product-design/einstein-invented-a-fridge-that-runs-on-heat-had-no-moving-parts.html

[Jim Pelosi]

Very interesting link. During WW2 the Germans were experimenting with mercury based motors with great success actually. The toxicity was and still is the problem. Seem the Einstein motor has a similar problem with the potassium/sodium mixture.