News tagged with acoustic signals

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Ship noise boosts stress in whales, 9/11 reveals: study

The steady drone of motors along busy commercial shipping lanes not only alters whale behaviour but can affect the giant sea mammals physically by causing chronic stress, a study published Wednesday has reported ...

Biology / Plants & Animals

created Feb 08, 2012 | popularity not rated yet | comments 1

Scientists develop new technology to detect deep sea gas leaks

A new ultra-sensitive technology which can monitor leaks from underwater gas pipelines has been developed by scientists at the University of Southampton.

Technology / Engineering

created Oct 12, 2011 | popularity 5 / 5 (1) | comments 0

Rainforest plant developed sonar dish to attract pollinating bats

The researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. The study is ...

Biology / Plants & Animals

created Jul 28, 2011 | popularity 4.7 / 5 (6) | comments 4 | with audio podcast

NPL unveils quantitative means of monitoring ultrasonic cleaning systems

Ultrasonic Cleaning Systems are widely used in healthcare applications during the sterilization of surgical instruments, and in many manufacturing and process industries. They work by passing a high frequency ...

Technology / Engineering

created Aug 11, 2010 | popularity not rated yet | comments 0

Lasers generate underwater sound

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 ...

Physics / General Physics

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

I'm forever imploding bubbles

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 ...

Physics / General Physics

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

Researchers Develop Flow Sensors Based on Blind Fish Hair Structures

(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.

Technology / Engineering

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

Network turns soldiers' helmets into sniper location system

(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 ...

Technology / Engineering

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

Listening to dark matter

(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 ...

Physics / General Physics

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