WireFinder 9000

By Christie, Jim, John, and Terry Noe Our dog, Maggie, loves to run around in our big yard. But how do we fence her in? Building a 500-foot fence is expensive and unsightly, so we use an “invisible fence.” This is a buried wire that runs around the edge of... Read more »

Rock ‘n’ Roll Speakers

Whether you’re at a Bangkok hostel or backpacking in Goa, you can rock out to your favorite tunes with these portable Rock ’n’ Roll Speakers, a set of customizable, low-fi travel speakers that allow you to take your music everywhere. The speakers are driven by a simple power amplifier circuit... Read more »

Compressed Air Rocket

Author Note: Since the release of the article in MAKE Magazine Volume 15 in 2008, the Compressed Air Rocket has been popular beyond belief.  We’ve sold thousands of kits and Kip Kay’s Weekend Project on YouTube has over one million views!  Now we’re rolling out a Version 2.0 of the... Read more »