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Matter is supposedly made up of energy, but...
Why are there stable elementary particles who are identical with their antiparticles (example, photon)?
Where does the energy go spatially? The energy obviously must be stored somewhere because an elementary particle can be returned back to energy with its antiparticle.
Why electron doesn't repulse itself?
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>>8690360
It's stored as mass and kinetic energy
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>>8690759
Kinetic energy is not a thing.
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>>8690762
Of course kinetic energy is a thing.
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>>8690765
It's a mathematical construct to explain why things move at different speeds. It doesn't actually exist
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>>8690799
By that logic thermal energy is a mathematical construct to explain why some things are hotter than others.
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>>8690808
thermal energy is kinetic energy at the molecular level.
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>>8690360
Photons aren't matter. They're bosons.
Where does energy go? The spin in the particle's superpartner according to supersymmetry theory.
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>>8690915
Which doesn't exactly help out OP
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>>8690360
>Why electron doesn't repulse itself?
Assuming you mean repulse each other, they do. But an electron doesn't normally have a position and velocity in the classical sense; rather it exists as a probability wave around a nucleus. If those clouds of possibility are overlapped enough, they will Pauli exclusion principle all over your ass.
Although I think there was a fun XKCD what-if involving what would happen if you had a moon made of nothing electrons...
https://what-if.xkcd.com/140/
...which, long story short, kinda results in pic related.
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>>8690360
>Matter is supposedly
No, it's reportedly ...
... or is it allegedly?
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>>8692894
Demonstrably.
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