GPS at 30,000 feet

by @edent | # # # #
Undulating waves of sand.

GPS is a modern miracle. Using SPACESHIPS and RELATIVITY you can locate yourself anywhere on the planet. Fun fact! Your GPS won’t work if you’re above 18Km or going faster than 500 metres per second. Just in case you’re a Soviet Guided Missile. But if you’re on a regular international flight, you should be just…

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