Mathematics
I really like mathematics. I've always been interested in it. I'm more analysis than algebra, though I certainly got a good dose of both learning the ways of quantum field theory. I reckon the fun starts at elliptic functions. I'm also hugely enthusiastic about geometric mechanics, though I'm not particularly good at it.
I love taking an idea and attacking it with Mathematica. Such projects in the past include
A program that turns an mp3 back into musical notation (work in progress!)
Mechanics of vibrations in space elevator tethers
A variant of nested sampling with genetic algorithm undertones
Modelling of alternative economic systems
Orbital mechanics
Fluid dynamics
Atmospheric heat transfer for weather prediction using an optical thermometer
Mechanics of atmospheric re-entry
Mechanisms for single-stage return from Mars
A genetic algorithm to find optimal routes for the Hyperloop