News tagged with high frequency

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Ultra-flat loudspeakers with powerful sound reproduction

Ultra-flat loudspeakers with powerful sound reproduction

Technology / Engineering

created Sep 03, 2009 | popularity 4.5 / 5 (4) | comments 1

(PhysOrg.com) -- Bigger speakers, bigger sound - this is the music lover’s creed. Flat panel loudspeakers offer an alternative to those who would rather not or cannot clutter up their homes with speakers. ...


Shifting sound to light may lead to better computer chips

Shifting sound to light may lead to better computer chips

Physics / General Physics

created Mar 16, 2009 | popularity 4 / 5 (4) | comments 0

By reversing a process that converts electrical signals into sounds heard out of a cell phone, researchers may have a new tool to enhance the way computer chips, LEDs and transistors are built.


Breakthrough for post-4G communications

Technology / Telecom

created Mar 05, 2009 | popularity 3 / 5 (1) | comments 0

(PhysOrg.com) -- With much of the mobile world yet to migrate to 3G mobile communications, let alone 4G, European researchers are already working on a new technology able to deliver data wirelessly up to 12.5Gb/s.


O. tormota

Ultrasonic frogs can tune their ears to different frequencies

Biology /

created Jul 22, 2008 | popularity 4.6 / 5 (8) | comments 5

Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. ...


Good vibrations: Devices aid the deaf by translating sound waves to vibrations

Good vibrations: Devices aid the deaf by translating sound waves to vibrations

Technology / Engineering

created Feb 26, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Lip reading is a critical means of communication for many deaf people, but it has a drawback: Certain consonants (for example, p and b) can be nearly impossible to distinguish by sight alone.