“There’s a possibility that the assault of the virus on our nation in Winter 2020-2021 will actually be even more difficult than the one we just went through. …We’re going to have the flu epidemic and the coronavirus epidemic at the same time.” — Robert Redfield, Director, Centers for Disease Control and Prevention (CDC), April …
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By BY RAYMOND ZHONG from NYT Technology https://ift.tt/2ZVzHzt
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The blood-red color of the moon during a total lunar eclipse may be difficult to explain without a basic understanding of orbital mechanics,...
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NSF's 10 Big Ideas Since 2017, NSF has been building a foundation for the Big Ideas through pioneering research and pilot activities....
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