This week we talk about Sputnik 1, satellite triangulation, and the Guugu Yimithirr.

We also discuss the GLONASS, BeiDou, and Galileo constellations.

I'm on tour: BecomingTour.com

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For more information about this podcast and to view the show notes, visit letsknowthings.com

You can find a list of the books I've written at Colin.io