And this one on Mathematics...

It's called the Cut-the-knot.org

I like the great way they put mathematics across using simple Java applets. Some of them are quite interesting games actually!

Here's one called The Towers of Hanoi. I remember having played this when young. Broght back some nice memories.

I guess when you're older you start appreciating what all the mathematics teacher were trying their damndest to teach you then!! No matter how painful it was to sit through a blackboard full of numbers & symbols which didn't seem to have any relevance with reality!

(via the Wired Blog)