A tribute to Stephen Hawking | Christophe Galfard | TEDxOslo
11:52
400,000 galaxies, et toi et moi, au centre de l'univers: Christophe Galfard at TEDxParis
11:31
Univers Parallèles et Révolution Quantique | Christophe Galfard | TEDxParis
17:49
Everything is Connected -- Here's How: | Tom Chi | TEDxTaipei
19:27
The first 20 hours -- how to learn anything | Josh Kaufman | TEDxCSU
11:30
Why exploring space matters | Stephen Hawking | TEDxLondon
18:27
Cómo aprender cualquier idioma en seis meses | Chris Lonsdale | TEDxLingnanUniversity
19:02
What Makes People Engage With Math | Grant Sanderson | TEDxBerkeley
15:15