The gears above are just 380 microns across, or about four times thicker than a human hair. They're being turned by bacteria that are bumping into the spokes. Scientists at Argonne National Laboratory developed the bacteria-powered gears in an effort to develop "hybrid biomechanical systems." The speed at which the gears turn can be controlled by changing the amount of oxygen in the solution. From an Argonne National Lab press release:
The microgears with slanted spokes, produced in collaboration with Northwestern University, are placed in the solution along with common aerobic bacteria, Bacillus subtilis. Andrey Sokolov of Princeton University and Igor Aronson from Argonne, along with Bartosz A. Grzybowski and Mario M. Apodaca from Northwestern University, discovered that the bacteria appear to swim around the solution randomly, but occasionally the organisms will collide with the spokes of the gear and begin turning it in a definite direction.
A few hundred bacteria are working together in order to turn the gear. When multiple gears are placed in the solution with the spokes connected like in a clock, the bacteria will begin turning both gears in opposite directions and it will cause the gears to rotate in synchrony for a long time.
Fumihito Taguchi’s fantastic collection of vintage portable record players, including the wonderful specimens seen here, will be on display at Tokyo’s Lifestyle Design Center from July 30 to August 28. See more at this Fashion Press post and in Taguchi’s book “Japanese Portable Record Player Catalog,” available in the US from my favorite vinyl soulslingers […]
The 8-Bit Guy’s 15-minute explainer on floppy discs is a great potted history of 80s- and 90s-era storage media (it follows his segment on tape-drives) and the way that competitors learned from each others’ mistakes and dead-ends, and engineered clever solutions to one of computing’s most serious challenges. (via Motherboard)
Mexico City-based artist Pablo Dávila’s “Living in time believing in the timeless” is a beautiful, compelling installation in which the UNIX timestamp triggers drumsticks, via an Arduino and custom code, to ping crotales (aka antique cymbals). It makes the ephemeral (and digital) visceral. The work is simultaneously jarring and meditative, a rather odd and provocative […]
Having to pack and drag your stuff through security can put quite the damper on your vacation plans. Thankfully, we’ve got your back with one way to make traveling more painless: the Jumper Overnighter Travel Bag.This compact bag is so lightweight that you can effortlessly carry it, and fit it into any overhead compartment. But just […]
Learning is a 24/7/365 proposition, and it never ends. And if you’re truly serious about leveling up your skill sets and career prospects, get a subscription to Stone River Academy’s massive course collection. This offer normally is worth over $1,400, but is now available for just $89 in the Boing Boing Store.A respected name in information technology […]
Home audio has taken some big leaps forward in recent years–not just in terms of sound quality, but also in the style department. The FRESHeBAR Leather Soundbar, now 56% off in the Boing Boing Store, is proof.The FRESHeBAR comes packing almost all the options you’d ever need for a home sound system, including Bluetooth streaming capabilities.The unit’s 90 […]