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Jed 2 year s ago
#6 used to be known as the vertical runway.
       
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Debbie 2 year s ago
#16, "Beavers build dams across streams to create a pond where they can build a "beaver lodge" to live in. These ponds provide protection from predators like wolves, coyotes, or mountain lions." (U.S. National Park Service) www.nps.gov › articles ›
       
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Helen 2 year s ago
#17 It earned the Nobel Prize... for her PhD advisor. She got no credit for her work.
       
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Helen 2 year s ago
Helen, Clarification: The paper announcing the discovery of pulsars had five authors. Bell's thesis supervisor Antony Hewish was listed first, Bell second. Hewish was awarded the Nobel Prize, along with the astronomer Martin Ryle.
       
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"TIL: In 400BC, the Persians invented a way to make ice in the desert using evaporation cooling"

 

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