Hence the genius of E=mc^2 in that the units did line up but nobody would accept... | Hacker News

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ctdonath on July 2, 2021 | parent | context | favorite | on: Uno – the “unit” for dimensionless quantities

Hence the genius of E=mc^2 in that the units did line up but nobody would accept the obvious, until Einstein.

Armisael16 on July 2, 2021 | [–]

Everyone was perfectly willing to multiply mass by the square of a velocity: KE = 1/2mv^2

It wasn’t at all obvious that removing the 1/2 and using c as your velocity would be meaningful.

teddyh on July 2, 2021 | [–]

𝐸=𝑚𝑐²

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