Open Thread - 11-14-2025 Dual Purpose
Submitted by studentofearth on Fri, 11/14/2025 - 5:52am
The compass is a classic example of a dual invention China provided the world. It opened the opportunity to know the direction one is traveling when sky or landmarks were not available for orientation. For some it opened new opportunities for trade, for others conquest of new territories to rule and for others travel to a new place to call home.
The Invention of the Compass (4.23 min)







