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Inofrmation on infrared (IR), a broad range of frequencies, beginning at the top end of those frequencies used for communication and extending up the the low frequency (red) end of the visible ...
This Hyperphysics page discusses resonance and resonant frequencies. Includes the example of a child's swing.
When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is ...
The range of frequencies the human ear can pick up changes as you grow older. Test the range of your hearing with this simple experiment.
White noise is noise whose amplitude is constant throughout the audible frequency range. It is fairly easy to produce white noise - it is often produced by a random noise generator in which all ...
A short description of what is frequency
In order to explain the frequency distribution of radiation from a hot cavity (blackbody radiation) Planck proposed the ad hoc assumption that the radiant energy could exist only in discrete quanta ...
The perceived pitch of a sound is just the ear's response to frequency, i.e., for most practical purposes the pitch is just the frequency.
Radio transmission involves putting audio frequency information on a much higher frequency electromagnetic wave called a carrier wave.
The homepage of the Time and Frequency division of NIST, which outlines their mission, technical highlights and both their current and future work.
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