Wheeler

Definition

John Archibald Wheeler was an American theoretical physicist who made significant contributions to the field of general relativity and quantum mechanics. He is best known for popularizing the term 'black hole' and his work on the theory of nuclear fission and wormholes.

5 Must Know Facts For Your Next Test

1. John Wheeler coined the term 'black hole' in 1967, fundamentally changing how these cosmic phenomena were discussed in both scientific and public circles.
2. He played a crucial role in developing the concept of 'geons,' hypothetical gravitational or electromagnetic waves held together by their own field energy.
3. Wheeler's work with Bryce DeWitt led to the formulation of the Wheeler-DeWitt equation, which attempts to reconcile general relativity with quantum mechanics.
4. He introduced the idea of 'quantum foam,' suggesting that spacetime has a foamy, jittery nature at extremely small scales due to quantum fluctuations.
5. Wheeler contributed to our understanding of nuclear fission, working alongside Niels Bohr during World War II on the Manhattan Project.

Related terms

Black Hole:

A region in space where gravity is so strong that not even light can escape from it.

Wormhole:

A hypothetical tunnel-like structure connecting separate points in spacetime, potentially allowing travel between them.

Quantum Foam: A concept suggesting that spacetime has a fluctuating, foamy structure at very small scales due to quantum effects.