News tagged with waves

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Inspecting letters with terahertz waves

Is it a harmless parcel or a bomb, an innocent letter or a drug shipment? A new terahertz scanner is capable of detecting illicit drugs and explosives sent by post without having to open suspicious packages ...

May 21, 2014
2.7 / 5 (3) 0

Will the 2014 El Nino be like 1997?

Every ten days, the NASA/French Space Agency Jason-2 satellite maps all the world's oceans, monitoring changes in sea surface height, a measure of heat in the upper layers of the water. Because our planet ...

May 20, 2014
4.6 / 5 (10) 0

3D modeling of the Sun from the core to the surface

A team at the Astrophysics, Instrumentation and Modeling Laboratory (CEA/CNRS/Université Paris Diderot) has successfully modeled, in 3D, the effects of gravity waves in an extremely comprehensive simulation ...

May 14, 2014
4.6 / 5 (9) 7

California smartphone 'kill switch' bill advances

On a second attempt, California lawmakers have advanced a bill that would require electronics manufacturers to install a shut-off function in all smartphones as a way to deter what one senator called a crime wave of thefts.

May 08, 2014
not rated yet 1

Researchers build acoustic tractor beam

(Phys.org) —A team of researchers with members from the U.K., Scotland and the U.S. has built a functioning acoustic tractor beam in a lab—one that is able to pull objects of centimeter size. In their ...

May 08, 2014 report
4.4 / 5 (28) 2