News tagged with electromagnetic waves

Graphene sheets enable ultrasound transmitters

University of California, Berkeley, physicists have used graphene to build lightweight ultrasonic loudspeakers and microphones, enabling people to mimic bats or dolphins' ability to use sound to communicate and gauge the ...

dateJul 07, 2015 in Nanomaterials
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Improved detection of radio waves from space

Geodesy is the scientific discipline that deals with the measurement of the Earth. One of the measurement techniques it employs uses radio waves from far-distant objects in space to determine factors such as the movement ...

dateMay 04, 2015 in Astronomy
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