Which Shape CUTS BEST? (Weed Eater Line at 100,000 Frames Per Second) - Smarter Every Day 238
18:24
What happens when 2 Weedeaters Hit Each Other? (28,000 fps SLOW MOTION) - Smarter Every Day 255
23:34
What does a Gong Sound Like when Hit with a 1189mph Baseball? - Smarter Every Day 267
13:12
Best Trimmer Line? Let's Find Out! Round 2: Stihl, Husqvarna, Echo, Oregon, Shakespeare, Weed Eater
30:09
I made a precision gearbox - with NO GEARS.
16:14
Can You Forge Tungsten?
19:19
We should use this amazing mechanism that's inside a grasshopper leg
29:34
How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251
2:37:28