Big Red Button
xkcd
xkcd what if?
Saturday Morning Breakfast Cereal
Empirical Zeal
Sean Carroll
Terry Tao
It’s Okay To Be Smart
I ¶#@*ing Love Science
NASA Astronomy Picture of the Day
Radiolab
HyperPhysics
The Scale of the Universe
The Character of Physical Law
Fake Science
Youtube Channels
Veritasium
Sixty Symbols
Periodic Videos
Crash Course
The Brain Scoop
Smarter Every Day
Vi Hart
George Hart
Numberphile
Vsauce
TED-Ed
MinuteEarth
MinutePhysics on Google+
And Facebook –
And twitter
Music by Nathaniel Schroeder
Thanks to Perimeter Institute for support.