Just go in the ocean, $)X (Qwerty Keypad) with a partner and you will find the Nessie, as it will come to you. :P i am a different person and this one is wrong
Sonar (or Sound Navigation and Ranging) is a type of technology that was designed to help with navigation, communication and locate objects underwater. Sonar projects sound waves then listens for the echo of the emitted sound waves to detect objects.
Yes, there is echo cancellation to help with that
sonar was discorvered in 1840 the early sientist Sarah Nolsoc. but first used by Samantha Layor
A bat is not blind, but it flies in the evening, and lives in a dark cave. So it needs echo location to find it's way around and catch insects.
Sonar was used widely in World War II in an effort to locate enemy submarines. It wasn't as sophisticated as it is today, but it did help. Actual numbers are difficult to come by, but sonar was effective in the successful attacks on several submarines.
No, if you ask for the Echo something for help you get it for free
In 1915, Paul Langévin invented the first sonar type device for detecting submarines called an "echo location to detect submarines" using the piezoelectric properties of the quartz. He was too late to help very much with the war effort, however, Langévin's work heavily influenced future sonar designs. The first Sonar devices were passive listening devices - no signals were sent out. By 1918, both Britain and the U.S had built active systems, in active Sonar signals are both sent out and then received back. Acoustic communication systems are Sonar devices where there is both a sound wave projector and receiver on both sides of the signal path. The invention of the acoustic transducer and efficient acoustic projectors made more advanced forms of Sonar possible.
Many species of sharks do not use sonar, as they have very effective senses, but some species are thought to. The hammerhead shark, in particular, is thought to use sonar waves detection.
good day
By "seeing" under water.
They could detect sound waves
because sound travels faster in water