Bacteria-based fuel cells provide power
Anglers casting their lines last September into a Montana creek may not have noticed, but a diminutive power plant was churning away in a shallow spot by the shore. The device generated electricity—with the aid of river-dwelling bacteria—to power a sensor system that wirelessly transmitted data to a receiver about 10 miles away. The underwater device, small enough to fit in a person's hand, was the first attempt to power such a system with a microbial fuel cell.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.