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ⓘ Sonar is a machine that uses underwater sound waves to find other objects in the sea. A sonar can work by sending out sound and listening for echoes, like a rad ..




Sonar
                                     

ⓘ Sonar

Sonar is a machine that uses underwater sound waves to find other objects in the sea. A sonar can work by sending out sound and listening for echoes, like a radar, or by listening for sound made by the object it is trying to find.

The basic parts of an active sonar are:

  • the hydrophone or hydrophone array converts the sound waves into electricity.
  • the transmitter creates the sound waves.

The first use of passive sonar was in 1490 by Leonardo da Vinci, when he put a tube onto water and listened. Active sonar was first used in 1917 by Paul Langevin. The word SONAR was created during the Second World War as an acronym for So und N avigation a nd R anging. This acronym replaced the British acronym ASDIC. The word is now thought by many people as a regular word, no longer as an acronym.

                                     
  • physicist who was active at the beginning of the 20th century. He invented sonar and worked with Albert Einstein. This short article about a person or group
  • series produced by Televisa. In 2009, she was cast as Patito in Atrevete a Soñar the Mexican remake of the popular Argentine children s telenovela, Patito
  • They use the delay to determine the distance. It is a kind of biological sonar Microbats find their insect prey in the dark this way. Whales and dolphins
  • option pricing, cryptography, numerical analysis, acoustics, oceanography, sonar optics, diffraction, geometry and protein structure analysis. This short
  • make many things to use reflections, including reflecting telescopes, radar, sonar and lidar and putting light reflectors on things they want to see.
  • in the water is known, so the depth can be calculated. It is a kind of sonar Note that the word sounding is used for all kinds of technologies, even
  • finding systems on ships, aircraft or cars to determine the bearing to the beacon. However, the term beacon also covers infrared and sonar beacons.
  • was first discovered by divers exposed to a high - frequency ca. 50 kHz sonar signal. Medical ultrasonography is commonly used during pregnancy. Ultrasound
  • as a theater activist while he made his debut on the silver screen with Sonar Kajol. He then went on to star in about 800 movies. His first national award
  • submarines due to combat and non - combat causes. After World War II better sonar helped the enemies of submarines to find and destroy them. New subs were