Quantum foam

John Wheeler derived the concept of the quantum foam in 1955. It is also referred to as spacetime foam and bears a superficial resemblance to the old concept of the ether (or aether).

Related Topics:
John Wheeler - 1955 - Aether

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The quantum in quantum foam comes from quantum mechanics, and the foam comes from the idea that at extremely small distances (of the order of the Planck length), the energy of spacetime itself ceases to be smooth, and resembles instead a kind of rapidly changing foam.

Related Topics:
Quantum mechanics - Planck length - Spacetime - Foam

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