Recently, I had the opportunity to spend almost a whole week MIG welding. Before this, I'd never spent more than an hour or so with a MIG machine, so it was fun to see my progress throughout the week.
Do you have a computer that sits idle for some portion of the day, unused and unloved? Well, I did, and recently started putting it to work while I'm away or asleep. BOINC is an open-source software project that allows anyone in the world to utilize the idle time on their own computer to contribute to scientific research.