Extracting the citric acid from lemons

28:25
Making raspberry perfume

26:01
Turning Aspirin into Tylenol

20:31
Extracting mercury from contaminated water

31:47
Dissolving $1000 of Platinum to Make $6000 of Chloroplatinic Acid for Professional Use

16:37
Fabriquer une presse à glace

33:01
The Man Who Almost Broke Math (And Himself...)

19:53
Going supercritical.

35:27