Article: sound

Article: Sound Transmission
World of Earth Science;      700+ words ......become generators of sound waves. For example, when...and generate a sound wave. Vibratory bodies can also absorb sound waves. Vibrating bodies...traveling sinusoidal sound wave has the same frequency...except when the sound waves propagate over...can bend ...

Article: No noise is good news. (noises may erase each other in the future)
Science World;  February 26, 1993 ;     314 words ......Here's how it works. Noise is sound, of course, and travels through...wave of vibrations. And like other sound waves, noise sound waves have a certain amplitude. The amplitude...frequency, or pitch. Now suppose two sound waves are heading into your ear, and each sound ...

Article: Good vibrations: whether it's a croaking frog or a foot-stomping elephant, many animals use sound waves to keep in touch.(Physical: sound waves)
Science World;  April 26, 2004 ;     700+ words ......communicate with one another using sound waves (vibrating energy waves that...back and forth. Result? A sound wave. To beat their competitors...the vocal sac and produces a sound wave that has a larger amplitude...straight out of its mouth. The sound wave with file ...

Article: Underwater noise.(Math And Diagram-Reading Skills)(Brief Article)
Science World;  December 6, 2004 ;     239 words ......step occurs first? a. Whales hear the underwater sound waves. b. Sonar sound waves echo off the submarine. c. The ship emits sound waves. d. The sonar tool measures the distance to the submarine. 2. Once an echo reaches the ship, the sound wave has traveled the distance ...

Article: Cover your ears: how to protect yourself against the world's biggest burp (and other loud noises).(YOUR PERSONAL HEALTH)
Current Health 2, a Weekly Reader publication;  March 1, 2005 ;     700+ words ......vibrates when struck by a sound wave. A sound wave is a wave of energy that...eardrum. When that happens, sound waves can't pass to the inner...hairlike shafts that sense sound waves. Hair cells transform the sound waves into nervous system impulses...

Article: Sound
Mathematics;      700+ words ......objects produce sound waves. Characteristics...waves, including sound waves, share certain...given medium, a sound wave with a shorter...amplitude of a sound wave determines how loud is the sound. Longitudinal Waves. Sound waves are ...

Article: Acoustics
Science of Everyday Things;      700+ words ......production, transmission, and reception of sound. Thus, wherever sound is produced and transmitted...instruments, as well as the reception of sound waves by the human ear. HOW IT WORKS Wave Motion and Sound waves Sound waves are an example of a larger phenomenon ...

Article: Fractal music: the mathematics behind 'techno' music.
Australian Mathematics Teacher;  June 22, 2005 ;     700+ words ......This article describes sound waves, their basis in the sine...music and how Physics of sound waves Every sound and every succeeding...and we can hear a sound. Sound waves are made by adding an infinite...pure waveforms). That a sound wave is a sine wave ...

Article: Sea notes: navy ships send sounds into the sea to hone in on underwater objects. Could the noise be harming ocean life?(Physical Sound)
Science World;  December 6, 2004 ;     700+ words ......the ships were using active sonar. This tool uses sound waves, or vibrating energy waves, to detect underwater...Institution. FULL BLAST Scientists aren't sure why simple sound waves might cause whales to swim for shore. The type...SONAR WORK? Navy ships from around the world use sound ...

Article: Image Analysis: Medicine
Computer Sciences;      700+ words ......Diagnostic ultrasound uses sound waves that are too high for the...cycles per second). These sound waves are used to evaluate the...transducer. The result is a sound wave. When the transducer is...electrophoretic" gel, the sound waves are sent through tissue...stops and ...

Article: Singing Search.(quiz)(Brief Article)
Science World;  January 22, 2001 ;     136 words ......into the lungs. 4. Using one's voice: -- (-) -. 5. Higher male voices: (-) -- 6. Pitch is created by sound waves' - (-) --. 7. A sound wave's height: -- (-) -- 8. The larynx is also known as the -- (-) --. 9. A high female voice: -- (-) 10...

Article: Corps of engineers surveys Tillamook Bar's safety.(Accidents)(A boating tragedy causes the federal agency to do its periodic assessment early)
The Register-Guard (Eugene, OR);  June 25, 2003 ;     700+ words ......the water at the Tillamook Bar? That question might sound simple, but it's occupying a full-time engineer and...array of complicated gadgetry, including satellite and sound wave technology, to measure the depth of what leery fishermen...surface; salt, fish, debris, bubbles and rocks deflect sound ...

Article: Sound Transmission in the Ocean
Water:Science and Issues;      700+ words ......medium through which sound waves propagate. The speed...air and water, with sound waves traveling faster in...The propagation of sound waves in sea water can be...characteristics of sound waves, low-frequency signals...the propagation of sound waves. A ...

Article: interference
The Columbia Encyclopedia, Sixth Edition;      700+ words ......each other. Interference is observed in both sound waves and electromagnetic waves, especially those of visible light and radio. Interference in Sound Waves When two sound waves occur at the same time and are in the same phase...