Black Holes by Jiahong He

Black Holes Jiahong He ebook
Format: pdf
Publisher: Penguin Books China
ISBN: 9780143800033
Page: 336

Astronomers think the object shown in this Chandra X-ray Observatory image (in box) may be an elusive intermediate-mass black hole. Find out how black holes are made, types of black holes, parts of black holes and how we detect black holes in space. A black hole is an object — typically a collapsed star — whose gravity is so strong that its escape velocity exceeds the speed of light. Pages by the relativity group at Cambridge University, aimed at a general audience. A black hole is a geometrically defined region of spacetime exhibiting such strong gravitational effects that nothing—including particles and electromagnetic radiation such as light—can escape from inside it. What really happens inside black holes? Index · HyperPhysics********** Astrophysics, Go Back. Black holes occur when a star dies. How were they first discovered? A black hole forms when any object reaches a certain critical density, and its gravity causes it to collapse to an almost infinitely small pinpoint. The Black Hole is a 1979 American science fiction film directed by Gary Nelson and produced by Walt Disney Productions. A black hole is a location in space that possesses so much gravity, nothing can escape its pull, even light. How do astronomers know if they're seeing one? This is not an artist's impression.