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Re: [Phys-l] E=mc^2 because E=mc^2?

Alphonsus wrote:
35 years ago, Feynman still did not change. You may want to take a look at
"Perfectly Reasonable Deviations from the Beaten Track" by Richard Feynman. "It
was successful, the necessary consequential phenomena (like mass changing with
velocity) were ultimately observed experimentally." p 283.

Erratum:
Actually, Feynman wrote this letter to Kenneth Warner Jr in Apr 1, 1975. So, it was 32 years ago, not 35 years ago. The error was on the "generous" side.

Alphonsus