As an occupation, I'm a mathematical physicist, studying string theory and quantum field theory.
I've developed as a hobby a few Cocoa (Touch) apps. The largest one so far is spires.app, which manages articles and metadata downloaded from the arXiv eprint server, the inspire database, and the journal websites.
I'm also interested in many other things, which is why I ask questions in various StackExchange sites ...
Physics
Q&A for active researchers, academics and students of physics
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Japanese Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Japanese language
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Mathematics
Q&A for people studying math at any level and professionals in related fields
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Ask Different
Q&A for power users of Apple hardware and software
Server Fault
Q&A for professional system and network administrators
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
