Einstein Refrigerator Making a Comeback?
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Albert Einstein is probably most remembered by the public for his General Theory of Relativity, but how many remember his 1930 invention of a refrigerator that used no electricity? I wasn’t there when it was introduced, but I knew several people who had one, and they weren’t all that happy with it, primarily because it wasn’t that efficient. The idea was great, it operated without electricity, using ammonia, butane and water. The principle being that … Read More
