Einstein's derivation of E = mc^2 (3 p. paper)
Does the inertia of a body depend upon its energy-content?
https://fermatslibrary.com/s/does-the-inertia-of-a-body-depend-upon-its-energy-content

* 1905 Einstein asked: "Does the inertia of a body depend upon its energy content?"
* f. this Q he wrote a 3 page paper
* derives 𝐸=𝑚𝑐^2 [comment - Victoria - last equation in the paper]
* energy & mass are interchangeable 🤯
* simple equation that revolutionized our understanding of physics 🤔

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