22:56
How Fear of Nuclear Ends | Michael Shellenberger | TEDxCalPoly
19:27
The first 20 hours -- how to learn anything | Josh Kaufman | TEDxCSU
18:31
Making Safe Nuclear Power from Thorium | Thomas Jam Pedersen | TEDxCopenhagen
17:33
Why renewables can’t save the planet | Michael Shellenberger | TEDxDanubia
15:45