Ten random things: February 7

1. The Bifurcation Locus
2. The Feigenbaum Diagram
3. The Hausdorff Dimension
4. The Yoccoz Inequality
5. The Poincaré Conjecture
6. The Riemann Hypothesis
7. The Euler Identity
8. The Lebesgue Measure
9. The Tamagawa Number
10. The Stone Duality

I have no idea what any of these are, though some of the names are familiar. My math-fu is weak.