Earth would move straight forward through the universe, but the Sun exerts a constant pull on our planet. This force bends Earth's path toward the Sun, pulling the planet into an elliptical (almost circular) orbit. His theories also made it possible to explain and predict the tides.
Why do work have to be so hard bro
I believe there was one, which was a legislative branch. There were state run governments. But the states ultimately had more power than the federal government.