News tagged with noise source

NIST improves Johnson-noise thermometry system

NIST has recently made substantial improvements to its Johnson-noise thermometry system, which is playing a vital role in the worldwide effort to determine the value of a key physical constant in time for the impending redefinition ...

dateNov 16, 2016 in General Physics
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Sonic net could save birds and aircraft, study suggests

Introducing a noise net around airfields that emits sound levels equivalent to those of a conversation in a busy restaurant could prevent collisions between birds and aircraft, saving passenger lives and billions in damages, ...

dateMay 06, 2016 in Ecology
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Urban seismic network detects human sounds

When listening to the Earth, what clues can seismic data reveal about the impact of urban life? Although naturally occurring vibrations have proven extremely useful to seismologists, until now the vibrations caused by humans ...

dateOct 29, 2014 in General Physics
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