Mechanical antennas represent a disruptive approach to low-frequency communication by exploiting the mechanical oscillation of electric charges or magnetic dipoles to generate electromagnetic ...
Modern Engineering Marvels on MSN
Earth’s accidental radio shield is pushing space radiation away
Could a century-old military communication method be quietly protecting our planet from deadly space radiation? NASA’s Van Allen Probes, launched in 2012 to study Earth’s radiation belts, stumbled ...
Van Allen radiation hinders and complicates spaceflight, magnetic instruments, and more.
Is the U.S. Navy's ELF antenna in northern Wisconsin still operating? If not, when did it cease operations? The Navy announced in September 2004 that ELF -Extremely Low Frequency Communications System ...
This is Part 1 of a three-part series. As modern wireless communications systems (mainly superheterodyne radio transceivers) are now required to deliver higher performance than ever before, they’re ...
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