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Scientists produce the most powerful underwater sound ever recorded: a record 270 decibels, identical to two jet engines taking off
- The Department of Energy made this discovery by effectively distributing water jets
- This caused the vaporization of water and cumulatively created a "shock wave train"
- Composed of zones alternating high and low pressure, it manifests itself by a sound
- For the context, the underwater noise was twice as strong as a jet engine taking off
American scientists have artificially created the sound underwater the strongest possible.
It was recorded at 270 decibels, which equates to two jet reactors captured and created by the efficient dosing of micro-jets of water with a powerful X-ray laser.
This led them to vaporize and form "shockwave" alternating high and low pressures, which eventually produced a sonic boom.
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After sandblasting tiny streams of water with an x-ray laser, the researchers observed shockwave trains moving to the left and right that moved away from areas filled with microbubbles (photo).
The Stanford Energy Department worked with researchers from Rutgers University to achieve a record result.
The result was so strong that he reached the threshold of what is scientifically possible under the water, according to the team responsible.
& # 39; It is just below the threshold where [the sound] would boil the water in one swing, "said PhysicsBuzz, Dr. Claudiu Stan, one of the authors of the study.
In fact, if they had tried to go harder, they would have failed.
This is because the medium through which the sound passes begins to collapse to the maximum, so the sound can not be stronger.
Technically, it is a process called cavitation which is observed in the same way in heat. Eventually, the atoms of a material decompose and there is no more heat to produce.
Underwater: The team achieved its results by effectively ordering micro-jets of water using a powerful X-ray laser, causing them to vaporize in shockwaves producing the sound.
"Amplitudes and intensities have been limited by the destruction by the wave of its own means of cavitation propagation, and these ultrasonic waves in the jets are therefore one of the most intense propagation noises that can be generated in the atmosphere. Liquid water, "explain the researchers.
"We estimate that the amplitudes of these pressure waves exceed the highest peak-to-peak pressures obtained with focused ultrasonic waves, and could therefore be the highest intensity sounds generated to date in the world. liquid water. "
The instrument used for this test was the Linac Coherent Light Source (LCLS).
Presented as "a revolutionary new tool to change the way scientists study the world of molecules and atoms," it has the power to create molecular black holes in one millionth of a second.
The results were published in the journal Physical examination of fluids.
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