Are plague pits still dangerous?

Are plague pits still dangerous? Plague is caused by a bacterium, Yersinia pestis, not a virus, and is treatable with antibiotics. Hugh Pennington, emeritus professor of bacteriology at the University of Aberdeen, said that the uncovering of plague pits was unlikely to pose any threat to the public. What animal did the Spanish flu come […]

Who is the Allen wrench named after?

Who is the Allen wrench named after? The terms “Allen wrench” and “Allen key” are derived from the Allen brand name and refer to the generic product category “hex keys”. W.G. Allen filed the first related patent in 1909 for its recessed hex-driven safety screws, a safety improvement over fasteners which protruded from machinery. Why […]

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