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PBS Space Time
Is Gravity An Illusion?
Season 1
Episode 17
Most of us take gravity as an assumed part of our living realities, but why? Basic physics introduces us to the concept of gravity from a Newtonian sense, but when you start factoring Einstein into an understanding of gravity, things get weird. For example, gravity may simply not exist. Why? Watch this week’s episode of PBS Space Time and find out why gravity may be an illusion!
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17:23
How is it possible to tell if a space rock will one day collide with the Earth?
15:58
Did you know that many of us have up to 4% neanderthal DNA?
16:35
What if the Big Bang was just an endless cycle?
19:39
Why are billions suddenly being pumped into fusion startups?
16:36
The universe should've collapsed after the Big Bang, but a light Higgs boson let us exist.
14:30
Maybe dark energy doesn't exist?
18:32
Dark matter has eluded us for many decades but we may be able to discover more now.
15:35
What do you get if you combine something that’s infinitely massive and negative infinitely massive?
13:39
What does an electron really look like?
16:35
Is there a limit to how much energy you can cram into, or pull out of one patch of space?
17:19
I’d like to invite you to an even higher level of nerdom!
11:43
Gravitational tsunamis exist and we’re on the verge of being able to detect them.