
Einstein’s Thought Experiment
Clip: Season 42 Episode 23 | 1m 49sVideo has Closed Captions
Your perception of time depends on how you are moving.
Your perception of time depends on how you are moving.
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

Einstein’s Thought Experiment
Clip: Season 42 Episode 23 | 1m 49sVideo has Closed Captions
Your perception of time depends on how you are moving.
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Learn Moreabout PBS online sponsorshipVideo has Closed Captions
Einstein's theory showed that time itself is affected by gravity. (1m 48s)
Video has Closed Captions
A mysterious concept changed the way we understand reality. (2m 6s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipNational Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.