Earliest records show a spoon shaped compass made of lodestone or magnetite ore, referred to as a "South-pointer" dating back to sometime during the Han Dynasty (2nd century BCE to 2nd century CE).

3. The Third Compass Image The invention of the compass was a turning point in the history of nautical navigation, benefiting sailors worldwide. Before its creation, navigators could only use a ...

like a compass. As a bonus, parents or pet owners can also set up “safe zones” to be alerted when a wandering child or animal leaves a given area. Unlike smartphones, LynQ doesn’t require a ...

To the immediate left of the plow was a red gasoline pump from 1911, and to the right were a surveyor’s compass and chain ... which John Deere’s great invention beautifully scoured.