Relevant answers to your frequent questions...

Sound Waves: Frequently Asked Questions

How do sound waves propagate in antimatter?

If there is a difference between matter and antimatter, it is very very tiny, that's why we are doing experiments here at CERN to investigate it. They are so similar that sound waves, that are vibrations of matter or antimatter, would be identical. An antimatter piano would sound exactly like a matter one.

Is CymaArt created with sound waves?

Although not widely discussed, sound is not a wave. Almost all audible sounds are bubble-like in nature, not wave-like as is commonly believed. See the article Wave Goodbye to Sound Waves .

Does snow change how sound waves travel?

Yes, when the ground has a thick layer of fresh, fluffy snow, sound waves are readily absorbed at the surface of the snow. However, the snow surface can become smooth and hard as it ages or if there have been strong winds. Then the snow surface will actually help reflect sound waves. Sounds may seem clearer and travel farther under these circumstances.
I recall waking up as a child and without even looking outside knowing that it had snowed just from the sounds I could hear. Yes, when the ground has a thick layer of fresh, fluffy snow, sound waves are readily absorbed at the surface of the snow. However, the snow surface can become smooth and hard as it ages or if there have been strong winds. Then the snow surface will actually help reflect sound waves. Sounds may seem clearer and travel farther under these circumstances.

Are sound waves used to study layers of the earth?

Generally seismic waves (P wave & S wave) are used for that. Explosives can generate these waves in the earth. Sound waves can also be used to measure the depth of water or locate bodies in water. We call this the echo-sounding or sonar. 2.

Will the screen flap with sound waves?

It shouldn’t visibly flap. However, a ported bass-reflex speaker or subwoofer placed behind any electric rolling screen might cause motion. Avoid close proximity of speaker ports to the screen material. There is no such concern with fixed-frame screens.

Is That Like When Doctors Use Sound Waves to Break Up Gallstones?

Yes, same principle. Hospitals will sometimes use a machine that emits certain sound waves to break up gallstones. By the way, one of the 473 pre-programmed auto codes in The Detox Box is for gallstones.

What's the difference between Sound Waves and Radio Waves?

Sound waves are planar waves of high and low pressure propagating outward from a source through a medium like air, water, basalt rock, or whatever. Electromagnetic waves differ in that they can travel in a vacuum and are composed of electric and magnetic fields, and they travel at the speed of light (a million times faster than the speed of sound through air). Radio stations use radio waves to carry audible information. ...

How do the sound waves help me? Do they break up plaque in my arteries?

Researchers have discovered that the blood supply of living tissues increase when it was exposed to appropriately designed sound stimulus. Positive changes also occur in cell metabolism, possibly due to the more efficient utilization of oxygen. Essentially, the infrasound used in the Sonotherapy effect the way the cells transfer and absorb material, making them much more efficient. ...

Can ultrasonic sound waves be effective in repelling bats from attics and other inside areas?

Sonic Technology Products makes no specific claims regarding the effectiveness of the PestChaser in repelling bats because the way bats respond to high frequency sound can vary significantly depending upon the time of year. Between December and June, bats are roosting and hibernating. They will not leave their nest, even if you introduce high frequency sound. They give birth to their young in mid-February and will absolutely not abandon them, no matter how noxious the sound is to them. ...
Sonic Technology Products makes no specific claims regarding the effectiveness of our ultrasonic rodent repeller in repelling bats because the way bats respond to high frequency sound can vary significantly depending upon the time of year. Between December and June, bats are roosting and hibernating. They will not leave their nest, even if you introduce high frequency sound. They give birth to their young in mid-February and will absolutely not abandon them, no matter how noxious the sound is to them. ...

Do elephants use seismic signals (sound waves transferred through the ground) to communicate with one another?

Experiments have shown that elephant vocalizations and movements do travel through the ground as seismic or Raleigh waves and that they travel at a faster rate than the rate at which they travel through the air. Some scientists claim that elephants' extremely sensitive feet and trunks might be able to detect these vibrations from the ground, other suggest that they may detect these vibrations through bone conduction. ...

BLAIR: From the sound waves?

SARAH: Yes. BLAIR: You know that cloud of… I don’t know what it is. It looks like smoke but it’s not. SARAH: It’s steam.
Source: www.nasa.gov

My farther has colleagues who are music therapists. Can sound waves that are pleasing to the air and stimulating to the brain actually cause the body to heal itself?

Possibly, although I have not seen definitive evidence of it in tightly controlled experimental conditions with controls, etc. This is beyond the realm of physics. 34.

From what I think I have learned in the past light as in rays have a mass, though nearly negligible; do sound waves have mass?

We know that light is composed of photons , little bundles of energy that have energy and momentum, but that are massless. Because light has momentum, you can have light pressure (e.g., used in solar sails). The medium that sound waves travel through has mass, but the sound wave itself is just a disturbance of that medium, and does not have mass per se. 11.

I still don’t completely understand, are a little “dots” of sound waves just always moving back and forth in a certain area or do the just keep going in a large room?

They are only moving back and forth in a limited area with a limited amplitude, i.e., they do not move large distances in a large room.
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