> Does anybody else have some cool ideas for Python projects? A general suggestion -- write programs that solve numerical differential equations. They're very

> Does anybody else have some cool ideas for Python projects? A general suggestion -- write programs that solve numerical differential equations. They're very useful in science and engineering. Your fluid physics idea is along those lines, because realistic fluid physics simulations are nearly always based on numerical differential equations (they have to be). Other useful numerical differential equations are any planetary orbit systems with more than two bodies, biological predator-prey "games", and most real-world supply-demand analyses. It's only a slight exaggerations to say that modern physics is defined by a large set of differential equations. Many of them are only soluble numerically.