Up Next
Back to Show
It's Okay to Be Smart
Sunlight Is Way Older Than You Think. Here’s Why…
Season 8
Episode 4
If the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth. But the most amazing thing about the sunlight we see is it’s actually SUPER old. How is that possible? Because of the physics and mathematics of random walks.
Support Provided By
12:05
There are parts of you that are living and dying at the same time. We find out how much.
12:27
This episode is about the science and evolutionary history of...butts.
12:38
This could have devastating effects on our future.
11:57
We dug a classic doc that tells the story of the transcontinental burrito hypertunnel.
19:29
We explore all the questions that teach us what's possible in evolution!
14:49
We use lots and lots of mousetraps and ping-pong balls to show how this works.
16:43
Explore why we lie if we’re supposed to be the most socially developed species on Earth?