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This animation demonstrates how sonar works.
sonar, sound navigation and ranging, radar, voice navigation, reconnaissance, research ship, watercraft, mapping, side-scan sonar, object detection, ultrasound, sound wave, radar echo, radar wave, wave, echo, reflection, seabed, submarine, vibration, mechanics, technology, physics
The boundaries of tectonic plates can be seen on the seafloor.
This animation explains the most important characteristics of waves through sound waves.
Nuclear propulsion was first used by the US Navy for powering submarines in the mid-20th century.
The ´Flying Fortress´ was developed for the United States Army Air Force by Boeing
The B-2 Spirit heavy stealth bomber was deployed in the Balkan war, Afghanistan and Iraq.
Bottlenose dolphins are sea mammals which use ultrasound for orientation.
Competing with each other in the 19th and 20th centuries, the world´s most powerful nations made great efforts to develop effective firearms.
The most popular European-made transport aircraft before World War II.
Bats use ultrasound to navigate and hunt for prey.
A legendary fighter plane used by the German air force in World War II.
River locks make rivers with great level differences safe for boating.
Submarines had an important role in naval warfare as early as World War I.
The main protagonists of World War II were tanks.
It is a well-known phenomenon that the sound of an approaching sound source is higher than that of a receding one.
Waves play an extremely important role in many areas of our lives.
The battleship USS Missouri, first deployed during WWII was also deployed in the Gulf War.
The German liquid-propellant rocket, developed during WWII, was the first known man-made object to reach space.
In 1946 a Hungarian scientist was the first person to detect radar echoes from the Moon.