Find number abc
[6102] Find number abc - If a7c9c + bacb7 = 939b1 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 25 - The first user who solved this task is Nasrin 24 T
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Find number abc

If a7c9c + bacb7 = 939b1 find number abc. Multiple solutions may exist.
Correct answers: 25
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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Edward H. Lowe

Died 4 Oct 1995 at age 75 (born 10 Jul 1920).American inventor of Kitty Litter. After Navy duty (1941-45), Lowe joined his father's company in Cassopolis, Mich., selling industrial absorbents, including sawdust and an absorbent clay called Fuller's Earth. In 1947, Lowe suggested the use of the clay instead of ashes for his neighbor's cat's box to avoid sooty paw prints. It worked well and Lowe thought other cat owners would use this new cat-box filler. He filled ten brown bags with clay, wrote the name "Kitty Litter" on them and began selling it through the local pet store. By 1990, his marketing effort had grown into a clay mining and consumer product business, the largest U.S. producer of cat-box filler, now improved, 99% dust free, and sanitized against odor-causing bacteria. He held 67 US and foreign patents.
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