Search the forum,

sounds

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.
In human physiology and psychology, sound is the reception of such waves and their perception by the brain. Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimetres (0.67 in). Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges.

View More On Wikipedia.org
Recent contents Top users
  • Dan
    72

    Dan

    Administrator From On the forum.
    • Messages
      2,780
    • Directory
      6
    • Reaction score
      1,222
    • Points
      113
  • F
    1

    FlyersFan

    • Messages
      2
    • Reaction score
      0
    • Points
      0
  • jklondon
    1

    jklondon

    From london
    • Messages
      3
    • Reaction score
      0
    • Points
      1
  • A
    1

    applepie

    From uk
    • Messages
      3
    • Reaction score
      1
    • Points
      3
    • Creating content since 2001. Untold Media.

    Newest Plumbing Threads

    Back
    Top
    AdBlock Detected

    We get it, advertisements are annoying!

    Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

    I've Disabled AdBlock