Find number abc
[6731] Find number abc - If 7babc + 9a2bc = 1cb272 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 22 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 7babc + 9a2bc = 1cb272 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.

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Walter Dorwin Teague

Born 18 Dec 1883; died 5 Dec 1960 at age 76.American industrial designer who pioneered in the establishment of industrial design as a profession in the United States. Teague designed cameras for Eastman Kodak and Polaroid, glassware for Steuben, interior designs, and many other items such as flat irons and radios. He designed the old-style Texaco gas stations, the ones that were painted white with forest-green streamline stripes and a free-standing post bearing the red Texaco star logo on a white disk, which were built alike over America.
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