Einstein and refrigerators

"Starting in the 1920s Einstein collaborated on building several different models of refrigerators, which seems like a bizarre aberration. Didn’t he have better things to do? But Einstein adored thermodynamics, so the project was a natural fit for him. Much of Einstein’s work, in fact, was built on 19th-century thermodynamics. Even E=mc2, in showing the equivalence of mass and energy, simply extended the idea of energy conservation." 

image from article

From: ‘Einstein’s Fridge’ Review: Heated Arguments It’s arguably the most successful scientific theory in history, sweeping and precise and revolutionary. Yet virtually no one cares." 

Book Review by Sam Kean, The Wall Street Journal, March 23, 2021 6:16 pm ET

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