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Particle physics is the study of the fundamental forces of nature as they are embodied in the interactions of elementary and composite particles at high energies and short time and distance scales. DO NOT USE THIS TAG for point particles in classical mechanics.
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Can one obtain free energy from the vacuum?
Yes, but no, as any energy "gained" would not only be undetectable, but would never last. For every virtual particle, there is a virtual antiparticle. Even if you did manage to "extract" energy throug …