event horizon
noun [ C ] uk/??vent h??ra?.z?n/ us/??vent h??ra?.z?n/
physics specialized事界，视界（即黑洞表面）
the outer edge of a black hole, beyond which nothing, including light, can escape
Anything that falls through the event horizon effectively disappears from the universe. 任何落入视界的东西在实际上都从宇宙中消失了。
- More examples
- It was Stephen Hawking who introduced the idea of the event horizon.
- By detecting very little energy from these black hole candidates, we have new proof that event horizons exist.
- Drop a book through a black hole's outer edge, known as the event horizon, and, according to Einstein's theory of gravitation, it never gets out.
- To an outside observer, the black hole begins at what is known as the event horizon, an imaginary sphere marking the point of no return.
- If the energy simply disappeared, then the most likely explanation is that it was sucked into the event horizon of a black hole.
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