A divice for receiving images over a distance is called a television which evrybody uses!
telephone
telescope
Woodwinds and brass instruments tend to directly vary the density / pressure of an air stream, with the instrument "flavoring" the sound with harmonics natural to the instrument. Stringed instruments, drums, cymbals, and electronic instruments typically cause vibration in the instrument body (or speakers), which in turn produces the sound waves.
The sound pressure decreases with distance r in a free field (direct field). The next question is. How does the sound decrease with increasing distance? After which law? Answer: The sound pressure p diminishes with distance after the 1/r law. Sound pressure decreases inversely as the distance increases with 1/r from the sound source. The Sound pressure level (SPL) decreases by (−)6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value. Sometimes it is said, that the sound decreases with with 1/r², the inverse square law. That is really wrong. Scroll down to related links and look at "Damping of sound level with distance".
The Sounds of the Sounds of Science was created in 2002.
Ultrasonic sounds are sounds that are above our hearing range.
During an examination a physician hears overactive bowel sounds known as high-pitched tinkling bowel sounds.
An instrument for reproducing sounds, especially articulate speech, at a distance., To convey or announce by telephone.
An instrument for reproducing sounds, especially articulate speech, at a distance., To convey or announce by telephone.
An instrument for reproducing sounds, especially articulate speech, at a distance., To convey or announce by telephone.
The state that sounds like a musical instrument is Oregon.
The state that sounds like a musical instrument is Oregon.
words, pictures ,or sounds that represents facts are called
an Indian instrument similar to guitar but sounds different. sounds annoying
ausiliscope
trompet
The stethoscope.
A rhythm instrument is an instrument that produces a beat, like a drum.
Multimedia software, such as Windows Media Player, lets you view pictures and hear sounds.