Blackholes

Gravitation and Black Holes part 2 of 5

Gravitation and Black Holes for Everybody. A 5-hour introduction to Gravitation and Black Holes for non-physicists with an interest in black holes. Gravitation: weight, acceleration, orbits, and tidal forces, on Earth, the planets, and stars. Why are there two high tides and low tides per day? How to rocket to Mars. Einstein’s General Relativity as applied to planets, stars, and black holes: curved spacetime, gravitational redshift. Could you survive entering a black hole event horizon or would it kill you (and how)? Time travel to the future by orbiting a black hole. When are black holes not black? Do black holes evaporate? What is a quasar? What are gravitational waves? How does a black hole deflect light rays? What is gravitational lensing?

Part 2 of 5.

The lecture notes/script is here:

Playlist for this black holes lecture series is here:

If you would like a spreadsheet to play with, contact me.

Sections in this video:
6. Black holes (BHs) 0:00
7. Supermassive Black Holes (SMBHs) 11:42
8. Quasars, accretion disks, part 1 22:18
9. Human shell observer 27:19
10. General Relativity (GR) 29:03
11. Schwarzchild solution 32:35
12. Time dilation 42:46
13. Gravitational redshift 47:36

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