Find the missing text [**B***U*]
[2148] Find the missing text [**B***U*] - Background picture associated with the solution. - #brainteasers #wordpuzzles - Correct Answers: 20 - The first user who solved this task is Erkain Mahajanian
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Find the missing text [**B***U*]

Background picture associated with the solution.
Correct answers: 20
The first user who solved this task is Erkain Mahajanian.
#brainteasers #wordpuzzles
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Mr Jones had a leak in the roo...

Mr Jones had a leak in the roof over his dining room, so he called a repairman to take a look at it. "When did you first notice the leak?" the repairman inquired.
Mr. Jones scowled. "Last night, when it took me two hours to finish my soup!"
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Donald R. Griffin

Died 7 Nov 2003 at age 88 (born 3 Aug 1915). Donald Redfield Griffin was an American biophysicist, known for his research in animal navigation, animal behaviour, and sensory biophysics. With Robert Galambos, he studied bat echolocation (1938), a term he coined (1944) for how the bat's ears replace eyes in flight guidance. Using specialized high-frequency sound equipment by G.W. Pierce, they found that bats in flight produced ultrasonic sounds used to avoid obstacles. In WW II, he used physiological principles to design such military equipment as cold-weather clothing and headphones. Griffin also worked extensively on bird navigation. In the late 1940s, he flew in a Piper Cub to observe the flight paths of gannets and gulls. In his career, he pioneered rigorous techniques to study animals in their natural environment.«
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