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The term "echolocation" was coined by zoologist Donald Griffin in 1944. But the phenomena was known about earlier, for example, Denis Diderot reported in 1749 that blind people could locate silent objects. [1] Human echolocation has been known and formally studied since at least the 1950s. [2]
Daniel Kish (born 1966 in Montebello, California) [1] is an American expert in human echolocation and the President of World Access for the Blind (WAFTB), a California-registered nonprofit organization founded by Kish in 2000 to facilitate "the self-directed achievement of people with all forms of blindness" and increase public awareness about their strengths and capabilities. [2]
World Access for the Blind (WAFTB) is an international non-profit, non-governmental and educational organisation based in California, United States.The organisation was started to strengthen the physical, mental and personal development of people with all forms of blindness, and to increase public awareness about the strengths and capabilities of blind people.
In this article, I will explore what humans can hear, including frequencies, ... ⭐ Bats use echolocation to "see" in the dark by emitting high-frequency sounds and listening to their echoes ...
Human echolocation is a learned ability for humans to sense their environment from echoes. This ability is used by some blind people to navigate their environment and sense their surroundings in detail.
Animal echolocation, animals emitting sound and listening to the echo in order to locate objects or navigate; Echo sounding, listening to the echo of sound pulses to measure the distance to the bottom of the sea, a special case of sonar; Gunfire locator; Human echolocation, the use of echolocation by blind people; Human bycatch
Obtaining success with the bottle-nosed dolphin echolocation research, Kellogg wondered whether humans also use echolocation to distinguish objects in their surrounding environment. He outlined this idea and possible research projects in the introduction of the 1962 article "Sonar System of the Blind" which appeared in Science. [8]
Blind people in China tap wooden blocks together as they walk down the street. The way to tell a blind person in China is not by a white cane, but by the sound of the blocks tapping together. I know this from many visits to China. This, surely, is echolocation practised on a large scale.