Deep Breath Please
The guys at Instructables came up with a chest harness to generate power for USB devices. Maybe they’ll give new meaning to the term wonderbra. Using some high-ratio gear motors this “thorax expansion coupler†uses your body motion for regular breathing. Although the instructions to build such a device are a little taxing, it would be a fun gear-head project. The goal of the chest USB charger would be generating about 500mW and in the enclosure size of a cell phone. The picture above is only a proof of concept and gets just a little over 50mW of power. At that rate, it would take about a day to charge one AA battary.

Matt LaBoff
Administator for GetUSB.info
GetUSB.info started in 2004 with the concept of providing USB information for everything USB related. At the time, USB was gaining momentum and every day new products, articles and news became published. Today, the site is focused on bringing technical information, tricks and hacks to USB related products. The site does publish off topic information as well, to keep the variety up. Please visit the footer area of any page if you or your company is interested in article or product placement via purchased advertising.