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https://theconversation.com/scientists-look-to-black-holes-to-know-exactly-where-we-are-in-the-universe-but-phones-and-wifi-are-blocking-the-view-259977>
"The scientists who precisely measure the position of Earth are in a bit of
trouble. Their measurements are essential for the satellites we use for
navigation, communication and Earth observation every day.
But you might be surprised to learn that making these measurements – using the
science of geodesy – depends on tracking the locations of black holes in
distant galaxies.
The problem is, the scientists need to use specific frequency lanes on the
radio spectrum highway to track those black holes.
And with the rise of wifi, mobile phones and satellite internet, travel on that
highway is starting to look like a traffic jam."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics