4:12

Making Oxygen

4:33

How Animals See The World - Slit Pupils

12:34

DIY Oxy Hydrogen Torch Using Water Electrolysis

16:06

The Greatest Mathematician Who Ever Lived

21:29

Are solid objects really “solid”?

24:10

This Is The World's First Geared CVT and It Will Blow Your Mind - Ratio Zero Transmission

24:29

Make Your Own Optical Lenses

7:47

Leonardo da Vinci inventions tested