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Acoustics
Acoustics is the branch of
physics concerned with the
study of sound (mechanical
waves in gases, liquids, and
solids). A scientist who
works in the field of
acoustics is an acoustician.
The application of acoustics
... > full story
Music
Music is an art,
entertainment, or other
human activity which
involves organized and
audible sound. Musical
composition is a term that
describes the makeup of a
piece of music. Methods of
... > full story
Sound effect
Sound effects or audio
effects are artificially
created or enhanced sounds,
or sound processes used to
emphasize artistic or other
content of movies, video
games, music, or other
media. The best sound
... > full story
Ultrasound
Ultrasound is sound with a
frequency greater than the
upper limit of human
hearing, approximately 20
kilohertz (20,000 hertz).
Some animals, such as dogs,
dolphins, bats, and mice
have an upper limit that is
... > full story
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Browse Reference Articles
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Speed of sound
The speed of sound is a term used to describe the speed of sound waves passing through an elastic medium. The speed varies with the medium employed (for example, sound waves move faster through water ... > more -
Doppler effect
The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. The ... > more -
Humanoid robot
A humanoid robot is a robot with its overall appearance based on that of the human body. In general humanoid robots have a torso with a head, two arms and two legs, although some forms of humanoid ... > more -
Videoconferencing
A videoconference (also known as a videoteleconference) is a set of interactive telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions ... > more -
Sonic boom
A sonic boom is the audible component of a shock wave in air. The term is commonly used to refer to the air shocks caused by the supersonic flight of military aircraft or passenger transports such as ... > more -
Electromagnetic spectrum
The electromagnetic spectrum is the range of all possible electromagnetic radiation. Above infrared in frequency comes visible light. This is the range in which the sun and stars similar to it emit ... > more -
Fluid dynamics
Fluid dynamics is the subdiscipline of fluid mechanics that studies fluids (liquids and gases) in motion. The discipline has a number of subdisciplines, including aerodynamics (the study of gases) ... > more
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