Daily Archives: March 8, 2015

March 8, 1618

On This Date in TWISTED-HISTORY.com! on this date in 1618, Johann Kepler discovered his third Law of Planetary Motion, which state that the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit. For those of us who are not astronomically inclined, this was some … Continue reading

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