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E = mc²

The mass-energy equivalence was one Albert Einstein's most famous work and caused him much celebrity. As such, E = mc² came to mean a formula for success.
Cameron Mitchell: Even if the valley wasn't filled with Jaffa, we could never have made it to the gate and dialed out in under . . . ten seconds.
Martin Lloyd: Good. See, that's why we're here. So what do you think, thirty seconds? Maybe not such a round number. How about . . . thirty-eight!
Daniel Jackson: What difference it does it make? I mean it's not like you're going to have an actual ticking clock on the screen.
Martin: That's brilliant!
Daniel: That's ridiculous.
Martin: Trust me, jeopardy plus ticking clock is box office. It's the E = mc² of the entertainment world! Ask any executive.
by cshin9 July 19, 2012
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E=mc2

E=mc2 is an incorrect format to write Einsteins equation for the theory of special relativity. The correct way to write the equation when the hypertext capability is not possible is to use ^2. Thus, the correct way to write the equation is E=mc^2. (ESMC)

Rest Energy=Rest Mass*Speed of Light (3.0*10^8m/s)^2

Derived by Einstein and is the fundamental equation that explains mass->energy conversion.
E=mc^2 not E=mc2
by STUVWX MC^234567 July 11, 2019
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(_E=MC2_)

Is an emoticon that means smartass. Often used in IRC.
Oh Gus, u r a fking (_E=MC2_)
by Dat_ass May 31, 2012
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e=mc2

Albert Einstein's forumla for his theory of general relativity.

E is Energy
m is Mass
c2 is really c squared (c^2). This means the velocity of light (8.0 x 10^8 meters/second)

By using this, it shows that no mass can accelerate to the speed of light.
Einstein is k1xx0r1ng j00 f00l'$ $#177`/ |V|47# $|<177$
by Yuri December 21, 2003
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E=MC²

The only definition on Urban Dictionary with the actual ². It basically means Energy=Mass X Speed of light squared. Simple, eh?
Wow! Somebody knows how to do the ² in E=MC²!
by glaires April 5, 2010
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e=mc2

The ^ signals "to the power of," which in the case of two we shorten to "squared."
by Al Einstein May 3, 2005
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e=mc2

I'm E what up And I'm MC squared,
We came to rhyme and we came prepared
Yo I like this beat that you're given me,
Now tell me the theory of relativity
E stands for energy, sucker fool It’s not measured in watts bitch, it’s measured in joules
Listen up class, the M is for mass And if you don’t like it you can kiss my ass
The C stands for the speed of light in a vacuum so back up hoes and give me some room
An invariant mass requires rest energy without a hitch
We made Newton’s second law that appears in a nonrelativistic classical mechanics sitch, biotch
by Oedipus T-Rex September 1, 2013
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