Gravity

Hydrodynamics. Tax codes. One of these was invented by God, the other by a Java programmer.

All you weary

Why do I have 9 followers, and I only can I identify 3 of them? Who are the 6 random people from all over the world that follow me, and why is 5% of my traffic from Russia? Oh, right, on that one.

Anyway, I have learned a lot in the last few weeks. Eventually I may be able to even tell you.