So you’ve seen those locationtagging numbers on maps and GPS devices before, but do you actually know what they mean? Brainstuff is here to fill you in.

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SOURCES:

https://www2.usgs.gov/faq/categories/...

http://maps.nationalgeographic.com/do...

https://www.britannica.com/place/Gree...

http://astro.unl.edu/naap/motion1/tc_...

https://pubs.usgs.gov/fs/2001/0077/re...

https://www.fcc.gov/media/radio/dmsd...