Category: Natural world
Daily miracles
From the Cassini-Huygens spacecraft’s camera. Named, of course, for Christiaan Huygens and Giovanni Cassini. But you didn’t need me to tell you that, right? That really big black stripe, I do believe, was even named after Cassini.
A last bit of erudition for the night
I only gave Kepler’s first 2 laws of planetary motion this morning. The reason for this is those were the only two listed in the Astronomia Nova, which is the book I was concerned with in my paper. The third one follows. One must strive for completion in these things. And I knew how disappointed … Continue reading A last bit of erudition for the night
Kepler's Laws of Planetary Motion – Metaweb
Further erudition. Both of these laws were first stated in Astronomia Nova. Kepler’s Laws of Planetary Motion – Metaweb Kepler’s First Law (1609): The orbit, of a planet about a star, is an ellipse with the star at one focus. There is no object at the other focus of a planet’s orbit. The semimajor axis, … Continue reading Kepler's Laws of Planetary Motion – Metaweb