02:20
PBS Space Time
The Leap Second Explained
Every once in a while we add a second onto our days.
Can You Trust Your Eyes in Spacetime?
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.
Can You Trust Your Eyes in Spacetime?
Season 1 Episode 22 | 9m 23s | CC
Last time we talked about what curvature means, looked at geodesics, great circles on spheres, and tried to understand the notion of "straightness". This week on Spacetime, we take a detour into how geometry works in spacetime. Get excited, because this episode is even more mind-bending than the last!
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