Supersonic

This page is about high speed motion of bodies such as airplanes through air or other fluids. For the video game character see Super Sonic. For the Oasis song, Supersonic (song). For the J J Fad hip-hop record, see Supersonic (album)."

Related Topics:
Super Sonic - Oasis - Supersonic (song) - J J Fad - Supersonic (album)

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Any speed over the speed of sound, which is approximately 343 m/s, 1,087 ft/s, 761 mph or 1,225 km/h in air at sea level, is said to be supersonic. Speeds greater than 5 times the speed of sound are sometimes referred to as hypersonic.

Related Topics:
Speed of sound - M/s - Ft/s - Mph - Km/h - Hypersonic

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Sounds are vibrations in an elastic medium. In gases sound travels longitudinally at different speeds, mostly depending on the molecular mass and temperature of the gas; whilst pressure has a much smaller effect. Since air temperature and composition varies significantly with altitude, mach numbers for aircraft are related to the speed of sound at sea level. In water at room temperature supersonic can be considered as any speed greater than 1,440 m/s or 4,724 ft/s. In solids, sound waves can be longitudinal or transverse and have even higher velocities.

Related Topics:
Molecular mass - Temperature - Pressure - Mach number - Room temperature

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Supersonic fracture is crack motion faster than the speed of sound in a brittle material. This phonomenon was first discovered by scientists from the Max Planck Institute for Metals Research in Stuttgart (Markus J. Buehler and Huajian Gao) and IBM Almaden Research Center in San Jose, California (Farid F. Abraham).

Related Topics:
Supersonic fracture - Brittle - Markus J. Buehler - Huajian Gao - Farid F. Abraham

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