Calculate AxB
[643] Calculate AxB - Determine the pattern of the subtraction, and calculate AxB. - #brainteasers #math - Correct Answers: 27 - The first user who solved this task is Sanja Šabović
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Calculate AxB

Determine the pattern of the subtraction, and calculate AxB.
Correct answers: 27
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Ben Bailey: Slow People in the Subway

The thing I hate the most about the subway is every time I get off the train and Im trying to get out of the station and back up to the street, I end up getting stuck behind these really slow people on the stairs. It happens to me every time I take the subway. Its been happening to me for years. And my question is this: how the hell do they keep beating me to the stairway?
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Sir Alexander Fleming

Born 6 Aug 1881; died 11 Mar 1955 at age 73. Scottish bacteriologist who discovered penicillin. In 1928, while working on influenza virus, he observed that mould had developed accidently on a staphylococcus culture plate and that the mould had created a bacteria-free circle around itself. He experimented further and he found that a mould culture prevented growth of staphylococci, even when diluted 800 times. The active substance, which he named penicillin, initiated the highly effective practice of antibiotic therapy for infectious diseases. Fleming shared the Nobel Prize for Physiology or Medicine in 1945 with Ernst Boris Chain and Howard Walter Florey, who both (from 1939) continued Fleming's work.
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