› added 4 days ago

TIL the Kelvin scale is a loop. Negative values represent temperatures even hotter than infinity, and the hottest (theoretical) temperature is -0 Kelvin.

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5YKnD TIL microwave ovens are pretty old technology, the first commercial microwaves were sold to restaurants as early as 1947. In 1965 they were small enough to fit in a countertop and they became a common kitchen appliance in the 70s.
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