Black Holes by Jiahong He

Black Holes



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


A common type of black hole is the type produced by some dying stars. How were they first discovered? There may be many, many stellar mass black holes in Earth's galaxy. Earth's galaxy is called the Milky Way. A black hole does not have a surface, like a planet or star. Wikimedia Commons has media related to Black holes. The 4-million-solar-mass black hole at the center of the Milky Way. Another kind of black hole is called "stellar." Its mass can be up to 20 times more than the mass of the sun. Answers to black hole questions like "How big is a black hole?" ,"How do black holes evaporate?", and "What is a wormhole?". When a super-massive star dies, it's corpse collapses into a knot so tight not even light can escape. Mass is the amount of matter, or "stuff," in an object. -Stellar black holes, mid-mass black holes, and supermassive black holes. For more than half a century, physicists and astronomers engaged in heated dispute over the possibility of black holes in the universe. The main article for this category is Black hole. Want to learn about the weirdest objects in the universe? How do astronomers know if they're seeing one? Index · HyperPhysics********** Astrophysics, Go Back. Black holes are the strangest objects in the Universe. Albert Einstein thought that a black hole--a collapsed star so dense that even light could not escape its thrall--was too preposterous a notion to be real. The extreme case is a black hole where photons from within a certain radius lose all their energy and become invisible.





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