Simulate earfish

It is not easy to record accurately in the sea. So scientists have taken advantage of the art of simulating ocean organisms to achieve high results.

According to Daily Mail, researchers at Stanford University (USA) has succeeded with styled ear structure of species of cetacean ocean that results in the range of 160 decibels, the depth is no longer a barrier as before. Compared to the octave in music, the sound of mosquitoes humming to noise like roaring elephants can be recognized.

Current underwater types are limited to the depth that increases the pressure so the sound is faint. So, the new device, called hydrophones, will be a better tool for scientists. According to Onur Kilic, the evolution of the fish over millions of years has optimized biological sonar (waterborne).

Actually, for both humans and fish, it is a way of sensing pressure changes through the eardrum, such as hitting a drum and ear for sound waves. Of course, the marine environment is different from the mainland environment. A microphone can only record sound waves in a less turbulent atmosphere. It is not as simple as it is every 10 meters in depth, according to scientists, in the deepest part of the world, the Challenger Deep in the Mariana Trench in the Pacific is under pressure. more than 1,100 times the Earth's surface.

The research team, led by Onur Kilic, created a high-pressure sensor with a very thin structure with a thickness of less than 500 nanometers. The fiber optic cable attached to this device using a laser beam is a sensible way to record in high pressure environments.