# speed of sound

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## speed of sound

The speed at which sound travels in a given medium under specified conditions. The speed of sound at sea level in the International Standard Atmosphere is 1108 ft/second, 658 knots, 1215 km/hour. See also hypersonic; sonic; subsonic; supersonic; transonic.
References in periodicals archive ?
com/lockheed-martins-sr-72-hypersonic-plane-could-be-built-under-1b-likely-be-ready-2030s-2337383) SR-72 hypersonic plane to reach six times the speed of sound, or Mach 6.
Speed of Sound won their first regional contest in Spring of 2012 and have been working toward the International title ever since - Peggy Jones (bass), Debbie Landers (tenor), Carter Maysilles (baritone), and Ashley Wright (lead).
Total quantity or scope: Problem # 1 Portable towed device for measuring the speed of sound in water ScanFish 2 sets
To determine the speed of sound in air by measuring the resonant frequencies of an open tube.
There are obvious advantages to ramping up to hypersonic flight, which is generally defined as anything that reaches at least Mach 5, or five times the speed of sound.
At typical airliner altitudes, the speed of sound is about 1,060 kilometers (660 miles) per hour.
If successful, the Red Bull Stratos mission hopes to establish four world records: the first human to break the speed of sound, without a vehicle; the altitude record for manned balloon flight; the altitude record for free-fall; and the time record for the longest free-fall.
Now, a scientist named Stephan Gekle has found that you can make air move faster than the speed of sound by doing a simple little trick: throw a rock in a pond.
Quantitative ultrasound was used to assess the axial speed of sound along the distal third of the radius, the proximal phalanx of the third finger, and the midshaft of the tibia.
Speed of Sound in Bones Lower In Women With Type 2 Diabetes m/sec Type 2 diabetes No diabetes (n =76) (n = 86) Radius 4,044 4,129 Phalanx 3,902 3,999 Tibia 3,815 3,845 Source: Journal of Clinical Endocrinology and Metabolism Note: Table made from bar graph.
Brian Clemenson's seasoned campaigner slides down to the basement level for his race this afternoon and, capable of stepping upon recent performances, Speed Of Sound can score at the chief expense of Raithby Saha.

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