Mental Floss

Eight awesome courses in one awesome channel: John Green teaches you World History and Hank Green teaches you Psychology. Check out the playlists for past courses in World History, Biology, Literatur

Raising nerdy to the power of awesome.

SciShow discusses science news and history and concepts.
With equal parts skepticism and enthusiasm, we go a little deeper...without going off the deep end.
Most of the time, anyway.