DIY Projects

Dripping Water Turned into Standing Waves

Facebook user Brusspup performed a simple, but interesting, experiment. Passing a tube of water across the front of a loudspeaker yields a standing wave when tuned to a 24 hz sound wave. Then when switched to 23 hz, it appears that the water droplets are actually traveling backwards through the tube they just came out of. A camera recording at a standard 24 fps is playing tricks with the eye when the frequency of the sine wave is very similar.

DIY Mobile Phone

DIY Mobile Phone

Arduino team member and MIT PhD student David Mellis created this DIY Cell Phone that packs a fascinating premise: An exploration into the possibilities for individual construction and customization of the most ubiquitous of electronic devices, the cellphone. By creating and sharing open-source designs for the phone’s circuit board and case, we hope to encourage […]

Sweet CNC Build

Sweet CNC Build

The Beatty family is building a lovely enclosure that will hold the computer and motor control boards for a CNC, using acrylic and MicroRAX t-slot beams. After trying a few different approaches, we decided to build the box from scratch out of 1/8″ acrylic sheet and Microrax, with are tiny, 10mm 80/20 aluminum beams. The […]