Content Tagged As radio_waves

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  • FBI: Navy Yard gunman left note about radio waves

    September 26, 2013 9:39 AM

    WASHINGTON - The FBI says Washington Navy Yard gunman Aaron Alexis left a note saying he was driven to kill by months of bombardment with extremely low-frequency radio waves. Valerie Parlave, assistant director in charge of the FBI's Washington field office, said Wednesday that Alexis did not target particular... more »
  • Chirps of alien birds?

    December 4, 2012 7:39 PM

    Two NASA spacecraft captured the clearest sound recordings yet from Earth's radiation belts and they're described by a scientist as the chirping of "alien birds". The Van Allen Probes are studying the radiation belts and collecting detailed measurements of high-energy particles and radio waves. These so-called chorus waves operate in... more »

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