Free Science Videos and Lectures

This video shows what different colors the alkali elements burn.

Strontium chloride, barium chloride, sodium chloride and potassium chloride are burned.

This video was done by YouTube user 'nitrex'.

This science video contains:
burning, colors, fire, alkali, strontium chloride, barium chloride, sodium chloride, potassium chloride

This video is from 1981. The interview is also the subject of Feynman's book The Pleasure of Finding Things Out.

I have a friend who's an artist and he's some times taken a view which I don't...

This science video contains:
richard feynman, flower, friend, colors, insects, mystery