WHAT WAS THAT?

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  • Author(s): BLAKEMORE, ERIN (AUTHOR)
  • Source:
    Popular Science. Winter2019, Vol. 291 Issue 4, p50-55. 6p. 8 Color Photographs.
  • Additional Information
    • Subject Terms:
      SOUNDS; SCIENTISTS; SOLAR flares; SHORTWAVE radio; RADIO waves; DEW; PHYSICISTS
    • Abstract:
      Numbers stations - shortwave radio transmissions of monotone coded messages - are inherently creepy. The most intriguing theory posits that it's a doomsday device that will go silent should Russia suffer a nuclear attack, thus triggering retaliation. This sparked a tourist craze, and visitors left ancient Yelp reviews in the form of graffiti. [Extracted from the article]