E = mc², the famous relation expressing mass-energy equivalence, is often touted to be a consequence of Einstein's Theory of Special Relativity. Yet, E = mc² was actually discovered a full five years before Einstein's theory even made its debut. Where does this equation really come from then, and what is it truthfully telling us? Join us as we dive deep into the real history and origins of physic's most talked-about equation.
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Works and References Cited:
Poincaré, Henri. (1900). "The Theory of Lorentz and the Principle of Reaction" http://physicsinsights.org/poincare-1...
Einstein, Albert. (1905). "On the Electrodynamics of Moving Bodies"
https://www.fourmilab.ch/etexts/einst...
Einstein, Albert. (1905). "Does the Inertia of a Body Depend Upon its Energy Content?" https://www.fourmilab.ch/etexts/einst...
Einstein, Albert. (1906). "The Principle of Conservation of the Center of Gravity and the Inertia of Energy" https://einsteinpapers.press.princeto...
Pais, Abraham. (1982). "Subtle is the Lord: The Science and the Life of Albert Einstein" https://horizons-2000.org/92.%20Misc%...
Rothman, Tony. (2021). "The Curse of E=mc²" https://www.researchgate.net/publicat...
Moylan, Patrick. (2019). "Poincaré on Mass-Energy Equivalence" https://www.bjp-bg.com/papers/bjp2019...
Moylan, Patrick. (2019). "Einstein's 1905 Paper on E=mc²" https://www.researchgate.net/publicat...
Gironda M., Moylan P., Yan L. (2021). "On the Controversy over the Logical
Correctness of Einstein’s First Paper on
Mass-Energy Equivalence" https://www.scirp.org/pdf/ahs_2021030...
Brown, Kevin. "Einstein on the Inertia of Energy" https://www.mathpages.com/home/kmath6...
Heaviside, Oliver. (1894-1912). "Electromagnetic Theory: Volume I - III" https://archive.org/details/electroma... (Volume I)
Lorentz, Hendrik. (1916). "The Theory of Electrons" https://ia800203.us.archive.org/15/it...
Purcell, Edward M. and Morin, David J. (2013) "Electricity and Magnetism". https://archive.org/details/Electrici...
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Contents:
00:00 - Intro
01:21 - The Principle of Reaction & Electromagnetic Momentum
05:16 - Poincaré's Derivation of E = mc²
09:29 - Einstein's Influences & First Proof
14:17 - Einstein's Second Proof
18:38 - The Problem of Relativistic Momentum
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