Physics - Simple Fluid Dynamics in Your Own Dish-filled Sink
Ever dripped milk into a bowl of water? Stir around the water (before adding the milk) for more coolness. Try a large frying skillet (preferably black) for best results.
A place to write down all the stuff I learn and know before I forget it all. It's kind of an encylopedia of my head. Ok, so I'm not really all that wise, but maybe this stuff will useful to you as well.