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It's Okay to Be Smart
What Is Fire?
Season 3
Episode 39
Why does fire burn? What's the chemistry and physics of a flame? This week, learn about the beautiful science happening inside a flame!
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10:40
The cosmic distance ladder is the world’s longest ruler, built to measure the universe.
15:17
On April 8, North America is getting a total solar eclipse. Here’s what you need to know.
12:09
Learn about the space junk problem and the giant space claw named ClearSpace-1 that might
14:28
These tiny pieces of an ancient asteroid could hold the secret to the origin of life.
10:28
What do scientists think are the best ways of reaching out to aliens?
13:38
A cosmic soup hadn’t existed in 13.8 billion years. Now, scientists cook it up in a lab.
12:56
After a century of industrial pollution and superstorms, New York's waterways needs help!
37:33
Crashing a car is usually a terrible accident. But sometimes, it’s a way to save lives.
18:10
A huge part of our identities, emotions, and our lives get tied up...Why is that?
10:57
X is everywhere and it’s probably thanks to math. But why is x the symbol for the unknown?