The Impact Sprinkler - more clever than it seems!
22:52
A simple water heater is more clever than it seems
23:04
The Computer-free Automation of a Jukebox (Electromechanics)
19:58
Everything About Irrigation Pivots (Farmers are Geniuses) - Smarter Every Day 278
6:52
Types of Sprinklers
18:25
Reusable handwarmers that get hot by freezing
16:41
How French Drains Work
12:45
Pulse Oximeters; An Amazing Use of Light
7:19