If you were a pirate in the 1700s, would you rather have a modern GPS or Jack's magic compass from Pirates of the Caribbean that points to what you desire most? David Chris: I think if you showed up with a modern GPS on the pirate ship, they would murder you for your witchcraft. "All magic ever declared historically has been revealed to be someone's knowledge of the laws of physics," he says.
Neil deGrasse Tyson and comic co-host Harrison Greenbaum answer fan-submitted Cosmic Queries that explore the techniques, inventions, and ideas for navigating the cosmos including celestial maps, GPS, the North Star, and more.
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