Podcasts Comedy Mark and Toddcast #80 – Plight of the Navigator

#80 – Plight of the Navigator

Published: March 27, 2017, 4:53 a.m.

This week we take a look at a man named John Harrison, who revolutionized naval navigation in the early 1700s through clocks — at first inventing a gyroscopic-like containment system for a giant pendulum, then...

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