Submarines use echolocation to detect, locate, and avoid obstacles underwater, as well as to navigate their surroundings. By emitting sound waves and analyzing the echoes that bounce off objects, submarines can map their environment in conditions where visual navigation is limited or impossible.
This sounds like it's probably the sonar system of a submarine.
He could hear echoes throughout the mountain range.
Submarines typically use air tanks. Oxygen is very dangerous and very flammable. It's use is very limited on submarines for that reason.
Sonar uses echoes to locate objects by bouncing sound waves off them and detecting the echoes.
spiderman
A sonar device can detect objects underwater by emitting sound waves and analyzing the echoes that bounce back. It can be used to find underwater features such as fish, submarines, shipwrecks, or the seafloor.
They HEAR using their ears but they use the echoes of the sounds they make to build a "sound picture" of their surroundings. This is used to avoid collisions and to catch prey. This use of sound and echoes is called "echo location".
submarines and bats both use sonar. Calvin was here
oceanographers use submarines to take pictures of sea life and things that have been found or things that they are looking for.
The marines do not use submarines. Only the Navy does.
Most submarines have propellers that spin, pushing them forward. A few smaller research submarines use a water jet for propulsion.