News tagged with radio transmitters

Engineers make world's smallest FM radio transmitter

A team of Columbia Engineering researchers, led by Mechanical Engineering Professor James Hone and Electrical Engineering Professor Kenneth Shepard, has taken advantage of graphene's special properties—its mechanical strength ...

dateNov 18, 2013 in Nanophysics
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Have thieving rodents saved tropical trees?

Big seeds produced by many tropical trees were probably once ingested and then defecated whole by huge mammals called gomphotheres that dispersed the seeds over large distances. But gomphotheres were probably ...

dateJul 16, 2012 in Ecology
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Colugos glide to save time, not energy

Gripping tightly to a tree trunk, at first sight a colugo might be mistaken for a lemur. However, when this animal leaps it launches into a graceful glide, spreading wide the enormous membrane that spans its legs and tail ...

dateJul 28, 2011 in Plants & Animals
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Radio waves 'see' through walls (w/ Video)

University of Utah engineers showed that a wireless network of radio transmitters can track people moving behind solid walls. The system could help police, firefighters and others nab intruders, and rescue ...

dateOct 12, 2009 in Engineering
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