Trees power this alarm system for remote forest fires
Scientists in Michigan have developed a forest fire alarm system. It not only can detect when a blaze begins but…
Tag: materials science
A table tennis table that will up your game
Zhong Lin Wang started playing table tennis only four years ago. But last year, he and other researchers came up…
Exotic super magnets
ONE April night in 1820, the Danish experimentalist Hans Christian Øersted made a remarkable discovery. By bringing an electrical wire…
How to stop a speeding bullet
A bullet fired into a disk of polyurethane — a type of plastic — may not burst out the other…
Hot technology
Almost every device that needs energy also wastes energy. Cars get their zip by burning gasoline, but that process heats up the…
Electronic skin
James Bond and his enemies would be interested in the goings-on at the laboratory of John Rogers. So would…
Self-cleaning clothes
Cleaning clothes usually requires soap and water to remove stains and smells, and a tumble in the dryer or an…