The Failed Attempt to Destroy GPS satellites with axes by people who saw the Terminator movie and don't regret ithttp://m.theatlantic.com/technology/archive/2015/03/the-failed-attempt-to-destroy-early-gps/386656/ …
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Replying to @SwiftOnSecurity
Slight correction to that piece: GPS is a one-way communication. However, they are periodically recalibrated by US to correct drifts.
3 replies 6 retweets 26 likes -
Replying to @SwiftOnSecurity
Fun fact: GPS requires such precision in timekeeping, the system was designed assuming the law of relativity was correct. Thanks, Einstein.
8 replies 41 retweets 93 likes -
Replying to @SwiftOnSecurity
Fun fact: GPS signals are so faint they're barely above the noise floor. That you can pick them up at all is a miracle of modern technology.
8 replies 28 retweets 70 likes
Replying to @SwiftOnSecurity
@SwiftOnSecurity Fun fact: the GPS L3 signal is used to detect, locate, and report nuclear detonations in the Earth's atmosphere.
1:03 PM - 7 Mar 2015
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