PBS Space Time

The Origin of Matter and Time

Season 1 Episode 40 | 9m 21s

We’ve broken down our preconceived notions about mass and time, now let’s redefine what they really are. Since we know that time is not a universal constant, what is? Matt defines causal order and explains how even though time may look different to multiple observers, it is the one concrete reality that we can all agree on.

Aired: 07/10/16

Rating: NR

Video has closed captioning.

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