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The fundamentals of space-time: Part 2 - Andrew Pontzen and Tom Whyntie

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Published on May 1, 2014

View full lesson: http://ed.ted.com/lessons/the-fundame...

View part 1 here: http://ed.ted.com/lessons/the-fundame...

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time, CERN scientists Andrew Pontzen and Tom Whyntie use a space-time diagram to analyze the sometimes confounding motion of light.

Lesson by Andrew Pontzen and Tom Whyntie, animation by Giant Animation.

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