With x86 and a few high-powered RISC chips dominating the list of the most powerful computers on Earth, you might be wondering what's the big deal with ARM and it's push into the server space. Well, this is the big deal. The image above is of Jon Masters powering a Calxeda-server from HP with nothing more than a bicycle. OK, so there's a bit more to the setup -- including a 400 watt inverter, a 35 Ah battery, a UPS and a Pedal-a-Watt -- but the gist of it is that Masters was able keep 32 ARM cores humming along just by pedaling his road bike at the Red Hat Summit. The demo was mostly meant as a proof of concept, but we can easily imagine our future robot overlords putting us to work keeping their network of servers running. On the plus side, pedaling to power the Internet might help solve our global obesity epidemic. For a quick tour of the rig, check out the video after the break.