What is a Black Hole? Explained in a Minute!

How is it formed? What are the different types of black holes? How do we detect it if it is black? Everything from extreme gravity & a large Escape Velocity to Accretion Disks & Hawking Radiation.

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0:00 Mass, Gravity & Escape Velocity of Black Holes
0:11 How are black holes formed?
0:20 What is an accretion disk?
0:24 How to detect a black hole?
0:46 What is Hawking Radiation?
0:56 Can a black hole evaporate?

Facts about Black Holes:
1. A black hole is an area of such immense gravity that nothing (not even light) can escape from it.
2. The point where all the mass is trapped is called a singularity.
3. An event horizon is a boundary in spacetime (around a black hole) from which nothing can escape.
4. An Accretion Disk is a rotating disc of matter formed by accretion around a massive body (like a black hole) under the influence of gravitation.
5. Hawking radiation is the thermal radiation emitted by the black hole near its event horizon.

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