In the 1960s, advances in technology allowed brave aquanauts to explore deeper into the ocean than ever before, but the project was shut down. Learn how Sealab worked -- and how that technology is still used today -- in this classic episode of BrainStuff.

BrainStuff Classics: How Did Alchemy Create Chemistry?
07:11

How Did Sundown Towns Say the Quiet Part Out Loud?
11:35

Why Do We Yawn, and Why Is It Catching?
12:02