String theory attempts to unify general relativity and quantum theory. Popular in the 1990s, string theory fell out of favor as it failed to provide testable predictions and required ten dimensions ...
Artwork illustrating how string theory emerges from a few simple mathematical assumptions about particle collisions. Credit: AI-generated art by Clifford Cheung. Physicists searching for a better ...
If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by subatomic particles like protons and the quarks and gluons that make them up.
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