In the East Suburbs of Niobe, NY, USA a Degu named Cheech runs in his wheel.
Were this an ORDINARY website, that would be the end of the story.

Here at DeguPower.com we are FAR from ordinary.
In this case, the wheel turns a small generator which charges a battery.
A PIC Microcontroller monitors that power being generated and reports the progress to a computer.
The computer compiles the data into useful form and uploads it to the Internet for the world to see.
Octodon degu, latin name for one of the friendliest little furballs on the Earth.