From the post:
The new educational channels run the gamut from world history to the cosmos, art, culture, numbers, science and everything in between. The channels, which you can find out more about below, have been added at YouTube.com/education.
Crash Course – A crash course in world history brought to you by John Green of thevlogbrothers, which plans to tackle 15,000 years of human civilization over the next year
Deep Sky Videos – An exploration of non-comet cosmic objects from Brady Haran
Intelligent Channel – Luminaries in the fields of education, art and culture discuss topical subjects, including interviews with actors, comedians, directors, writers and musicians
Numberphile – Designed for people that love numbers, Numberphile, also from Brady Haran, will discuss the stories behind numbers
SciShow – Hank Green, the second half of the vlogbrothers, brings you SciShow, a channel aimed to teach scientific topics in an easy-to-understand way
The Spangler Effect – Brought to you by Steve Spangler, the guy that taught you how to turn Diet Coke and Mentos into an exploding geyser, brings you a channel that makes science approachable and fun