Well here we are in jolly old Italy. You may
have already met Galileo if you travelled with me as we studied motion.
There he is again "Hello Galileo, can I ask you some more questions?"
"You again, I thought I already talked to
you about my marvelous ideas of motion."
"You did, I just wanted to ask you about
some of your astronomical discoveries."
"Ah yes. Well, let me start off by
speaking about the moons of Jupiter. You see the Church has forbidden us
to look into the sky. But, I made myself a looking glass that allowed me
to see farther and deeper into space. I saw a marvelous thing. I saw a
giant planet which I called Jupiter. Like Earth it had a moon orbiting it.
But Jupiter had not one, but four moons surrounding it. So you see the
Earth is not the only planet with an orbiting satellite. With my
telescope, I also made an incredible discovery when looking at the Sun. I
saw that it was a giant fireball with dark black sun spots."
"Very interesting Galileo. Now, what is
your position on the placement of Earth in the universe?"
"Well, to me it is obvious. The Earth
orbits the Sun. Copernicus' data was so indisputable. The only problem I
have with this model is that others, such as the church, do not believe me.
They claim that I am wrong, and that God would not put his masterpiece -
man - anywhere else but the center of all things. Many people know me, so
the church can't kill me, but they can punish me, which is the scary thing."
"Well Galileo, I hope it works out for you.
Thank you for your time."
was at the centre of the universe
was not othe only planet with moons. Jupiter had 4 moons.
was not a perfectly luminous object as it had sun spots.
Galileo was a true hero because he challenged
the recognized religious authority. He saw the Sun at the center of the
universe, and like Copernicus, the planets orbited the Sun. Galileo had
also discovered four moons of Jupiter, as well as Sun spots. In his life
he was supported by many, as well as denounced by many. At the age of 70,
he was forced by the church to state that he was wrong about all of his
work. He was not allowed to write or speak of the Copernican heliocentric
system again. Galileo died an abused old man, but his drive and scientific
principles remain very much a presence in today's scientific world. Our
next hero is Johannes Kepler, who changed the way we think of motion in the
heavens. Just click on the Time Machine to continue!
| Galieo |
Sound and Waves
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