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Animal echolocation, non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate. Human echolocation , the use of sound by people to navigate. Sonar ( so und n avigation a nd r anging), the use of sound on water or underwater, to navigate or to locate other watercraft, usually by submarines.
Human echolocation is the ability of humans to detect objects in their environment by sensing echoes from those objects, by actively creating sounds: for example, by tapping their canes, lightly stomping their foot, snapping their fingers, or making clicking noises with their mouths.
Swedish soldiers operating an acoustic locator in 1940. Acoustic location is a method of determining the position of an object or sound source by using sound waves. Location can take place in gases (such as the atmosphere), liquids (such as water), and in solids (such as in the earth).
The term echolocation was coined by 1944 by the American zoologist Donald Griffin, who, with Robert Galambos, first demonstrated the phenomenon in bats. [1] [2] As Griffin described in his book, [3] the 18th century Italian scientist Lazzaro Spallanzani had, by means of a series of elaborate experiments, concluded that when bats fly at night, they rely on some sense besides vision, but he did ...
Noteworthy is the emission of high-frequency echolocation calls by toothed whales and echolocating bats, showcasing diversity in shape, duration, and amplitude. However, it is their high-frequency hearing that becomes paramount, as it enables the reception and analysis of echoes bouncing off objects in their environment.
(The Center Square) – U.S. Rep. Jared Moskowitz, D-Fla., backs removing certain offices from the Department of Homeland Security, claiming doing so will allow for quicker reforms. The ...
See also wikt:Help:Audio pronunciations. Upload the pronunciation to Wikimedia Commons using the Upload Wizard. At the "Release rights" step, it is recommended to select "Use a different license" and then "Creative Commons CC0 Waiver" — because audio pronunciations are very short, the requirements imposed by other licenses can be problematic.
Mac and Cheese. There are two ways to create something beautiful with mac and cheese and a waffle iron. You can easily reheat some leftover mac and cheese and make a crispy patty of goodness, but ...