News tagged with acoustic signals

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Lasers generate underwater sound

Lasers generate underwater sound

Physics / General Physics

created Sep 04, 2009 | popularity 4.5 / 5 (8) | comments 6

Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...


I'm forever imploding bubbles

Physics / General Physics

created Apr 07, 2009 | popularity 4.7 / 5 (3) | comments 1

The National Physical Laboratory (NPL) has developed the first sensor capable of measuring localized ultrasonic cavitation - the implosion of bubbles in a liquid when a high frequency sound wave is applied. The sensor will ...


Researchers Develop Flow Sensors Based on Blind Fish Hair Structures

Researchers Develop Flow Sensors Based on Blind Fish Hair Structures

Technology / Engineering

created Mar 24, 2009 | popularity 4.5 / 5 (4) | comments 1

(PhysOrg.com) -- A blind fish that has evolved a unique technique for sensing motion may inspire a new generation of sensors that perform better than current active sonar.


Network turns soldiers' helmets into sniper location system

Network turns soldiers' helmets into sniper location system

Technology / Engineering

created Mar 24, 2009 | popularity 4.4 / 5 (17) | comments 8

(PhysOrg.com) -- Imagine a platoon of soldiers fighting in a hazardous urban environment who carry personal digital assistants that can display the location of enemy shooters in three dimensions and accurately ...


Listening to dark matter

Listening to dark matter

Physics / General Physics

created Oct 16, 2008 | popularity 4.3 / 5 (46) | comments 14

(PhysOrg.com) -- A team of researchers in Canada have made a bold stride in the struggle to detect dark matter. The PICASSO collaboration has documented the discovery of a significant difference between the ...