Seeking for not so regular knowledge?

I’m rather bored from university subjects at the moment, so I enjoyed a bit different angle to things. You can see what I mean here:
http://www.youtube.com/watch?v=ZuiQkn_d1Ro&NR=1 http://www.youtube.com/watch?v=kZKOPKIHsrc

I’m sure you can find more following the links YouTube offers when viewing one of these.