Alright, so I am looking to expand my mind.
I start out learning about something, and invariably end up 15 mins later looking at russian dash cams, world series of poker, or how to deliver a baby animal.
However, I have come across a few gems that I really like, and here are a couple.
1) Vsauce
2) MinutePhysics
so what are your fav channels? I need time killer!