Don't know of the pope in question, but there was a fine film made of this debate a few years back. It had a very poignant final shot of the empty courtroom where it had been decided that Indians were humans being swept by a Negro slave...
Let´s try this one:
After Nicolaus Copernicus published his thesis of the correct astronomical order in his De revolutionibus orbium coelestium, many other great scientists of the 16th century tried to prove and refine this theory, among them Galileo Galilei and Johannes Kepler.
Kepler was the one to formulate the fundamental laws of Astronomy, Kepler´s Laws. But he couldn´t have found these exact formulas without the help of observations of other astronomers and their splendid observation instruments. One was Galilei, sharing his findings and even one of his precious telescopes.
Who was the second important scientific colleague in Johannes Kepler´s life and his teacher, whose accurate observations of which celestial object enabled Kepler to formulate his fundamental laws?
The person in question was also teacher of the first globe constructor, one globe is even decorated with his portrait.
But he did not gain such an important place in history, he even died before the release of Kepler´s Laws.
BONUS: When did he live!
P.S.: Anyone visiting Gamecatcher should refrain from answering!
Reread my question to understand it correctly, your answer seems way out of place!
The person I´m looking for was the teacher of both Kepler and Mercator, Mercator was the first globe constructor I mentioned.
And he specialized on observing ONE celestial object.
Quite right!
And you really can keep those dates of birth and death in your memory?? Impressive!
Just guess the celestial object with a little thinking. There aren´t that many object that were observable at that time AND close and constant enough to provide sufficient and exact data to formulate fundamental laws with it.
Give it a try!
the moon also revolves around the earth in elliptical orbits, ALL moons and planets, revolve in elliptical orbits.
as for the planet I think it's probably Mars.
Actually moon orbit are rather circular. Not completely but the distance to the moon is always the same, more or less. If it were like you said, our satellite system would never work.
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