The Royal Navy had Asdic for submarine detection. Initially it was quite primitive. I'm thinking Sonar, as such, is more recent than WW2.
Sonar was not introduced in World War 1.
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Not used in WWI, it was designed as a part of Manhattan Project and used on submarines and other vessels during WWII.
The tank was well in use by the start of WWII. They were first developed by the French and British during the First World War.
The first documented use of sonar was during World War I by the British Royal Navy to detect submarines. The technology was further developed during World War II for anti-submarine warfare.
Sonar was not introduced in World War 1.
Sonar was gradually developed and improved over many years, but the first operational form of sonar as we now know it goes back to about 1918.
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Sonar stands for Sound Navigation and Ranging. It was first developed during World War I to detect submarines underwater by sending out sound waves and listening for their echoes. The technology has since been adapted for various uses, including underwater mapping and marine research.
The scientist who is credited with inventing sonar is Paul Langevin, a French physicist. In 1915, Langevin developed the first practical application of sonar as a way to detect submarines during World War I. His work laid the foundation for the use of sonar technology in various fields, including marine navigation and underwater exploration.
Sonar was first used during World War I by the British Royal Navy. It was used to detect submarines by emitting sound waves and analyzing the echoes that bounced back.
Sonar
sonar
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Ultrasound technology was first discovered by Paul Langevin and his assistant in 1916. Sonar, a similar technique, was then developed during World War I. The medical applications of ultrasound were later developed in the 1950s and 1960s.
I believe that Lewis Nixon was 45 when he invented sonar. He was born in 1861. Kelly Nixon Mayr