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    • What Happens if a Nuke Goes Off in Space?

      What Happens if a Nuke Goes Off in Space?

      Scientific American· 1 day ago

      The U.S. had just detonated a thermonuclear bomb 100 times more powerful than the one dropped on Hiroshima. This event, called Starfish Prime, wasn’t the...

    • MERV Ratings: What Do They Mean?

      MERV Ratings: What Do They Mean?

      Bob Vila via Yahoo News· 1 day ago

      Filters down to particles 0.3 to 1 micron in size. MERV 17-20 Commonly used for facilities that house pharmaceutical manufacturing, orthopedic surgery...