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Why a “room-temperature superconductor” would be a huge deal

Vox

But the science of why it matters is, by comparison, relatively simple. Batteries — from a Duracell AA all the way to a Tesla lithium-ion battery capable of holding approximately 100 kWh — store energy chemically, and can convert it to usable electricity. That necessarily involves some energy loss and inefficiency.

Energy 92
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Jeff Bezos wants the world to know he’s a philanthropist

Vox

By comparison, Bezos has been fairly reticent to discuss what motivates his philanthropy and the pace at which he’ll do it. It was a source of growing criticism from the press and nonprofit experts as his net worth climbed, topping $100 billion by the end of 2017. I will keep at it until the safe is empty,” she wrote.