Have you participated in the Rotary Club's Group Study Exchange program? What benefits did it provide you, and what should I know before going? [more inside]
posted by Horselover Fat on Nov 10, 2008 - 6 answers

I have found someone who can build me a mobile phone out of a rotary dial telephone. But Sparkfun doesn't really have a one-stop shopping list. Help me decipher exactly what parts from this article i will need and also please recommend a good antenna I can use that will give me the best reception but also be cell-phone-tiny. [more inside]
posted by parmanparman on Sep 24, 2008 - 2 answers

Trafficfilter: at a problem intersection, what traffic solution would most benefit me – a stoplight, a traffic cop, a rotary, or something else? [more inside]
posted by acridrabbit on Oct 12, 2006 - 13 answers

What is this thing?
(larger images of above) [more inside]
posted by odinsdream on Feb 13, 2005 - 37 answers