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2022-03-23: Where Is The Center of The Universe?

  • 03:04: General relativity can be used to calculate the spacetime curvature produced by the Earth or the Sun to determine their gravitational effects.

2022-01-27: How Does Gravity Escape A Black Hole?

  • 01:55: When you use those equations to calculate the speed of various gravitational effects, they also turn out to be the speed of light.

2021-02-24: Does Time Cause Gravity?

  • 10:56: ... inflation it’s believed that quantum gravitational effects would have been very important, so if we can get any type of signal from ...

2018-09-20: Quantum Gravity and the Hardest Problem in Physics

  • 04:38: ... that approach completely fails when you have strong gravitational effects on the smaller scales of space and time, like the central singularity of ...
  • 10:46: When you have strong gravitational effects on the quantum scale, the self-energy corrections blow up to infinity.

2018-09-05: The Black Hole Entropy Enigma

  • 00:53: Also, we've seen them in their gravitational effects on their surrounding space and in the gravitational waves caused when they merge.

2015-08-19: Do Events Inside Black Holes Happen?

  • 13:33: ... are gravitational effects from the Sun and Moon that do the same thing, but they're highly, highly ...

2015-07-02: Can a Circle Be a Straight Line?

  • 01:57: We'll end up seeing that all the supposedly gravitational effects on motion can be accounted for just by the geometry of spacetime.
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