How a gas lighter works
8:15
How a cordless drill works
16:30
Designing A Self Propelling Ionic Thrust Wing
8:02
hidrojen hücresi nasıl yapılır
4:29
What makes a lawn sprinkler go back and forth?
9:20
Piezoelectricity - why hitting crystals makes electricity
5:01
How a Zippo Lighter Works
11:40
The Smart Tricks Inside Telescopic Machines
4:54