From the "trampling" of ants to the collision of black holes: how the world sounds around us - we listen together
We continue to talk about unusual sounds based on Sam Harnett and Chris Hoff's micro according to World According to Sound . The first part of our review dealt with amazing musical works and instruments created by people.
In this part we will see what nature is capable of in this plan. We tell about the amazing and unusual sounds that make insects, natural phenomena and the world around us.
Yellowstone National Park PD Photos
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In the United States, at the junction of three states (Wyoming, Montana and Idaho) is the world's first national park, founded in 1872. On its territory there are many rivers, lakes, canyons, caves and even the largest supervolcano on the continent. But we are interested in various geysers and other geothermal sources. For example, the unusual "Black Pool".
It looks like a huge black hole in the ground, filled with crystal blue water. Geothermal gases rise from the bottom of the pool and form bubbles that accumulate on the surface, emit a constant rustling, and then burst.
In the park you can find a lot of geysers that "explode" with different regularity. Small geysers emit steam and water every ten minutes to a height of two to three meters. Large geysers can “charge” longer, but also shoot higher - for example, one of the largest geysers in the park “explodes” every three days to a height of forty meters, the second - about every hour to a height of forty-two meters.
The water of the geyser can rise from almost a kilometer depth. The ejection of water and steam by geysers, the crackling of gases, turbulence - all this creates surprisingly rich sounds that can serve as a natural relaxing “music”:
A similar relaxing effect produces most of the recordings with the sound of water or gurgling bubbles . Both are sounds with a uniform sound. They do not require special concentration from us, so we do not consider them dangerous and do not feel anxious.
Sands "sound" for various reasons - under the influence of the wind or during human walking. Scientists continue to explore the specific manifestations of this phenomenon. There are several conditions that must be met by the sand of the dune in order for it to “sing”: sand particles must be round, not exceed 0.5 mm in diameter and reach a certain humidity. The sound of singing dunes is difficult to compare with something: it resembles a mix of percussion instrument and organ, flute and howling.
Moreover, if the sand particles are as close to each other as possible, the dune “sounds” only by one note (as, for example, in the desert in Morocco ).
One ant (depending on the species) weighs from one to five milligrams. For humans, the ants remain "silent", but special recording equipment without any problems captures ant trampling. Here he was recorded using JrF contact microphones , designed by sound engineer Jez riley French.
They are so sensitive that they record the smallest vibrations of the surface, including ant trampling. Sharp clicks are the attempts of ants to bite a microphone:
In February 2016, scientists experimentally discovered gravitational waves - the distortion of space-time, the existence of which was predicted by Albert Einstein. The gravitational-wave observatories LIGO (USA) and VIRGO (Italy) recorded the fusion signal of two massive (36 and 29 solar masses) black holes, which occurred more than billion light years from Earth. The black hole orbits spin faster and faster and finally collide in a high crescendo:
The data recorded by scientists can be presented in different planes and different media. In this case, the sound has become one of such means - not only for the sake of beauty and clarity, but also because the signal received by observatories is indeed on a frequency that roughly coincides with the frequency of human speech. It is sound in one of its forms that has become a means of knowing the unknown secrets of the universe, thanks to which one of the most important (if not the most important) scientific discovery of our generation was accomplished.
Now the sound of gravitational waves - one of the most recognizable in the world. He is also reflected in music . For example, one of the first musical compositions "based on" sounds like this .
Materials on the topic of our "World Hi-Fi":
In this part we will see what nature is capable of in this plan. We tell about the amazing and unusual sounds that make insects, natural phenomena and the world around us.
Yellowstone National Park PD Photos
')
Geysers and the "Black Pool" Yellowstone
In the United States, at the junction of three states (Wyoming, Montana and Idaho) is the world's first national park, founded in 1872. On its territory there are many rivers, lakes, canyons, caves and even the largest supervolcano on the continent. But we are interested in various geysers and other geothermal sources. For example, the unusual "Black Pool".
It looks like a huge black hole in the ground, filled with crystal blue water. Geothermal gases rise from the bottom of the pool and form bubbles that accumulate on the surface, emit a constant rustling, and then burst.
In the park you can find a lot of geysers that "explode" with different regularity. Small geysers emit steam and water every ten minutes to a height of two to three meters. Large geysers can “charge” longer, but also shoot higher - for example, one of the largest geysers in the park “explodes” every three days to a height of forty meters, the second - about every hour to a height of forty-two meters.
The water of the geyser can rise from almost a kilometer depth. The ejection of water and steam by geysers, the crackling of gases, turbulence - all this creates surprisingly rich sounds that can serve as a natural relaxing “music”:
A similar relaxing effect produces most of the recordings with the sound of water or gurgling bubbles . Both are sounds with a uniform sound. They do not require special concentration from us, so we do not consider them dangerous and do not feel anxious.
Singing sands
Sands "sound" for various reasons - under the influence of the wind or during human walking. Scientists continue to explore the specific manifestations of this phenomenon. There are several conditions that must be met by the sand of the dune in order for it to “sing”: sand particles must be round, not exceed 0.5 mm in diameter and reach a certain humidity. The sound of singing dunes is difficult to compare with something: it resembles a mix of percussion instrument and organ, flute and howling.
Moreover, if the sand particles are as close to each other as possible, the dune “sounds” only by one note (as, for example, in the desert in Morocco ).
Ant steps
One ant (depending on the species) weighs from one to five milligrams. For humans, the ants remain "silent", but special recording equipment without any problems captures ant trampling. Here he was recorded using JrF contact microphones , designed by sound engineer Jez riley French.
They are so sensitive that they record the smallest vibrations of the surface, including ant trampling. Sharp clicks are the attempts of ants to bite a microphone:
Gravity waves
In February 2016, scientists experimentally discovered gravitational waves - the distortion of space-time, the existence of which was predicted by Albert Einstein. The gravitational-wave observatories LIGO (USA) and VIRGO (Italy) recorded the fusion signal of two massive (36 and 29 solar masses) black holes, which occurred more than billion light years from Earth. The black hole orbits spin faster and faster and finally collide in a high crescendo:
The data recorded by scientists can be presented in different planes and different media. In this case, the sound has become one of such means - not only for the sake of beauty and clarity, but also because the signal received by observatories is indeed on a frequency that roughly coincides with the frequency of human speech. It is sound in one of its forms that has become a means of knowing the unknown secrets of the universe, thanks to which one of the most important (if not the most important) scientific discovery of our generation was accomplished.
Now the sound of gravitational waves - one of the most recognizable in the world. He is also reflected in music . For example, one of the first musical compositions "based on" sounds like this .
Materials on the topic of our "World Hi-Fi":
- Audio triggers: how the human psyche reacts to different sounds
- Sound from different sides: how it is perceived by representatives of different professions
- "They just hear us": how animals perceive sound
- "Hear past the ears": unusual ways of perceiving sound
- Rain, clank armor and liquid metal: how sound is created for the movie
- Friday format: How digital money “sounds”
- Tools that did not become mainstream: a wheel lira, a harp and a musical saw
Source: https://habr.com/ru/post/371375/
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