The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...
The fact that like charges repel and opposites attract is basic electromagnetism. But for decades scientists have occasionally made a counterintuitive, and controversial, observation: similarly ...
The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.
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