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/sci/ - Science & Math

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10215912 No.10215912 [Reply] [Original]

Simple phisics question. If you convert a formula e=mc2 into m=e/c2 why can't we create even a little bit of mass?

>> No.10215922

Because we can't decrease the speed of light and we can't create energy?

>> No.10215931

>>10215922
could you elaborate on that

>> No.10215933

>>10215912
I don't know what you're talking by not being able to create mass. You can create mass from energy.

>> No.10215966

>>10215931
What do I have to elaborate? Energy conservation is a law of physics. So is the speed of light.

>> No.10216047

>>10215922
>>10215966
You're dumb, we can't create energy but we can sure as hell move it around

>>10215933
yep, particle accelerators work by this. They make more mass than the particles had at rest.

>> No.10216049

>>10216047
yes but that requires mass. is there a way to make mass out of energy alone

>> No.10216050

>>10216049
Yeah, kugelblitz

>> No.10216052

>>10216049
Yes, collide two high energy photons together.

>> No.10216067

>>10215912
In a way I believe we can create mass. If you excite an electron in an atom it will become more massive due to the increase in energy.

>> No.10217040

>>10216067
Yes, because mass and energy are proportional … Still, the energy must have been there before.

>> No.10217063

>>10216052
but photons ignore each other

>> No.10217260

>>10217063
Nope. Photon-photon scattering/annihilation is a non-leading order process, but it happens.
https://en.wikipedia.org/wiki/Two-photon_physics