Slow day at the office? Here’s a trick that’ll make your coworkers smile. Dangerously Fun has a guide to build a homopolar motor from a battery, copper wire, and magnet. A homopolor motor doesn’t rely ...

Useless robots (or useless machines) are devices that, when switched on, exist only to turn themselves back off. They are fun and fairly simple builds that are easy to personify, and really invite ...

http://www.casttv.com/video/hy...s-machine-ever-video<BR><BR>Heh... good stuff! <img src="http://episteme.arstechnica.com/groupee_common/emoticons/icon_smile.gif" alt ...