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Post has been Discarded

Why E=mc² is wrong

submitted by Aard Vark

(oritteropo)
6 years 6 months 1 week ago

Well, perhaps not wrong exactly, but not the general case.

YouTube description:

The most famous equation in all of science is Einstein’s E = mc2, but it is also frequently horribly misunderstood and misused. In this video, Fermilab’s Dr. Don Lincoln explains the real truth about this equation and how people often use it wrong.

Related videos:
https://www.youtube.com/watch?v=LTJauaefTZM
https://www.youtube.com/watch?v=qXxtqK7G4Uw

4 Comments

I was taught that E=(+-)MC2. (This implies antimatter)

I'm disappointed he wasn't totally clear that all he was doing was adding kinetic energy to the base equation. Of course that adds energy to the system, but the base equation is about mass/energy (how much total energy a certain resting mass contains) not all energy. Heat the mass, you need another equation. Make it radioactive, another.

Also, maybe it's been proven wrong by now, but I recall experiments showing photons do have at least a pseudo mass, proven by their ability to move objects (like the spinning black and white squares inside a vacuum toy and theoretical solar sails).

Moving this video to oritteropo's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.

*discard

Discarding this post - discard requested by original submitter oritteropo.

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