Cool videos and other things to waste time in a semi-productive way
Veritasium youtube channel - lots of great videos about physics, science, math, other interesting stuff
minute physics youtube channel - short explanations of all sorts of things
vsauce - yet another great youtube channel of science goodness
periodic table of videos - another worthwhile place to spend some time.
pHET simulations - fun to play with, some have games, and you might even learn something
cool math games - just what the title says
Veritasium youtube channel - lots of great videos about physics, science, math, other interesting stuff
minute physics youtube channel - short explanations of all sorts of things
vsauce - yet another great youtube channel of science goodness
periodic table of videos - another worthwhile place to spend some time.
pHET simulations - fun to play with, some have games, and you might even learn something
cool math games - just what the title says