In fact, the thickness of the Earth's atmosphere, compared with the size of the Earth, is in about the same ratio as the thickness of a coat of shellac on a schoolroom globe is to the diameter of the globe. That's the air that nurtures us and almost all other life on Earth, that...
for example, Isaac Newton's comprehensive, "universal" theory of gravity was built on smaller theories like Galileo's observations of how falling objects hurtle toward Earth and Johannes Kepler's ideas about the planets sweeping through space, themselves based on earlier science dating back to ancie...