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A historical and philosophical framework describing the void in ancient atomism – the empty space between atoms that allows motion, change, and the plurality of beings. In Leucippus and Democritus, the void is as real as atoms: without it, atoms could not move or combine. The theory contrasts with plenism (no void) and has echoes in modern physics (vacuum between particles). It examines how the concept of void enables mechanistic explanations of nature and how it was later transformed by field theory and quantum mechanics.
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