Everything Matters - Tales From The Periodic Table: Palladium
32:35
Everything Matters - Tales From The Periodic Table: Silver
35:04
Everything Matters | Selenium
27:03
The Art of John Edmark | Talk by Paul Dancstep | Exploratorium
47:25
Periodic Table of Elements Song
38:43
Everything Matters | Copper | Ron Hipschman | Exploratorium
53:16
Lasers! | Full Spectrum Science | Ron Hipschman
8:51
Il trouve la dérivée : Le dérivé d'Ott (années 1930)
12:59