Boarding a US NAVY NUCLEAR SUBMARINE in the Arctic - Smarter Every Day 240

How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251

Nature's Incredible ROTATING MOTOR (It’s Electric!) - Smarter Every Day 300

ROBOFORMING: The Future of Metalworking? (I Had NO IDEA This Was Possible) - Smarter Every Day 290

I Accidentally Photographed Something Unknown During the Eclipse - Smarter Every Day 298

Why Snatch Blocks are AWESOME (How Pulleys Work) - Smarter Every Day 228