Friday , 15 December 2017
Home » Science (page 204)

Science

New Laser sensor could lead way to handheld bomb-detectors

New Laser sensor could lead way to handheld bomb-detectors

A team of researchers led by Xiang Zhang, professor of mechanical engineering at the University of California, Berkeley, has created a lasing plasmon explosives-sniffing nanosensor that is free of metal losses and operates at a scale far below the diffraction limit for visible light.1 The sensor consists of a layer of the semiconductor cadmium sulfide on top of a silver ... Read More »

‘Fireball’ in the Sky Caught on Tape (Video)

'Fireball' in the Sky Caught on Tape

Meteor reports stream in after a huge fireball is sighted in Virginia, Maryland, North Carolina, Delaware and Pennsylvania. Reports came in fast and furious to the American Meteor Society’s “Fireball Page,” which tracks citizen sightings of meteors. Many of the reports read like this one from Peter in Chester: “It was the brightest I’ve ever seen. I even heard a ... Read More »