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Available Formats PBS Space Time Secure Scanned : 06/06/2026 Download HD
Season
Episode

PBS Space Time - Season 2020 Episode 19 Does Gravity Require Extra Dimensions?

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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.
Episode : 427 Episode
Season : 13 Season
Runtime: 26:14 minutes
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