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.
Tony Fadell is best known “one of the fathers of the iPod” at Apple, and as the former CEO of Nest. We’ve agreed to forget that he led the Google Glass division for a while, too. Today, news broke that the serial inventor and investor is now working with companies including Samsung Electronics and Foxconn’s […]
The Wall Street Journal is reporting that millennials have learned how to get free TV with a simple antenna, for a one-time cost of about $20. Us old-schoolers have known of this ancient wisdom since, well, forever but have neglected to pass down to the young’uns. But the crazy thing is that it’s not just […]
The fine folks at Techquickie put together a quick overview that takes the mystery out of the dizzying array of audio file formats, including when to use what and brief histories of the most common types.
The Pry.Me Bottle Opener holds tens of thousands of times its own weight, and you can pick one up now from the Boing Boing Store.This remarkable keychain is considerably smaller than any of your keys, but don’t let that fool you: it can easily open any bottle, and could even tow a trailer full of […]
Guaranteeing your privacy online goes way beyond checking the “Do Not Track” option in your browser’s settings. To ensure that your internet activity is totally hidden from Internet Service Providers, advertisers, and other prying eyes, take a look at Windscribe’s VPN protection. It usually costs $7.50 per month, but you can get a 3-year subscription […]
This project management bundle will help you get organized and learn how to lead a team to success. You can pay what you want for these five courses when you pick them up from the Boing Boing Store.To help you become an invaluable asset for your company, this bundle includes a curated collection of professional […]