If two stones were placed... near each other, and beyond the sphere of influence of a third cognate body, these stones, like two magnetic needles, would come together in the intermediate point, each approaching the other by a space proportional to the comparative mass of the other.


As quoted in Kepler by Walter William Bryant (1920) - Astronomia nova (1609)

Johannes Kepler Quotes

If two stones were placed... near each other, and beyond the sphere of influence of a third cognate body, these stones, like two magnetic needles,...

If two stones were placed... near each other, and beyond the sphere of influence of a third cognate body, these stones, like two magnetic needles,...

If two stones were placed... near each other, and beyond the sphere of influence of a third cognate body, these stones, like two magnetic needles,...

If two stones were placed... near each other, and beyond the sphere of influence of a third cognate body, these stones, like two magnetic needles,...