Up Next
Back to Show
PBS Space Time
Does Gravity Require Extra Dimensions?
Season 6
Episode 17
It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds - but those secrets may be revealed by turning back to the Cavendish experiment. That steampunk contraption may even reveal the existence of extra dimensions of space.
Support Provided By
12:04
Is it possible to simulate the entire universe on a computer smaller than the universe?
11:46
How gravitational waves can be used to search for extra dimensions of space!
12:20
General relativity and quantum mechanics seem to describe all of observable reality.
9:28
The universe is full of stuff. But... is it actually made of stuff? Or information?
11:41
Black Holes should have no entropy, but they hold most of the entropy in the universe.
13:41
There is no greater hero in our search for life on mars than a robot named Opportunity.
12:36
Do the theories of quantum physics truly represent the underlying workings of reality?
8:51
Humanity is coming closer to touching the Sun after launching the Parker Solar Probe.
11:10
Learn about the standard model of particle physics, the most accurate physical theory yet.