Albert Einstein;  March 14, 1879 - April 18, 1955) was a theoretical physicist born in Germany who developed the theory of relativity as his most important achievement, which, along with quantum mechanics, are two pillars of modern physics.

A unique genius, never to be repeated. 
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In addition to his scientific theories, Albert Einstein had a few inventions. He, along with Leo Szilard, invented the Einstein-Szilard refrigerator, which operated without moving parts and used gases, aimed at enhancing safety in refrigerators of that era.
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A good photo but not the happiest Einstein in photos if you know what do I mean 
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