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Where do I end up if I dig straight down?

By stienman
Created Aug 29 2006 - 11:06am

Alex Harford posted a message on the piclist (electronics enthusiasts, mainly PICmicro microcontrollers) debunking the common belief that if a person in the USA digs straight through the center of the earth, they'll end up in China.

I determined to resolve the question and explore where the end of the tunnel occurs given any spot on earth. I spent an hour making an antipodal geography tool [1] using Google Maps to answer the question:
Two Google maps with markers in the center of each.  They show the opposite sides of the world.  The center of the top map is in Michigan, USA; the center of the bottom map is in the Indian Ocean. [2]

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