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  #1  
Old 11-22-2005, 04:13 PM
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Default This scientist invented the laws of planetary motion

The laws are as follows:

first law (1609): The orbit of a planet about a star is an ellipse with the star at one focus.

second law (1609): A line joining a planet and its star sweeps out equal areas during equal intervals of time.

third law (1618): The square of the sidereal period of an orbiting planet is directly proportional to the cube of the orbit's semimajor axis.

Guess who's the scientist....
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Old 11-25-2005, 02:46 AM
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Question Who???????

WHO IS IT MAD?

never heard of it before but the motion part I've heard but forgot...
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Old 12-24-2005, 10:26 AM
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Smile He was...

Johannes Kepler I think

We read a little about him in science class
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  #4  
Old 12-24-2005, 11:11 AM
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Default Motion

I have to agree that it was Johannes Kepler.
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Old 12-24-2005, 12:10 PM
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Talking I don't know

I always think of Sir Isaac Newton when I think of laws, but it wasnt him, I don't think.
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Old 12-24-2005, 07:06 PM
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Talking The Sky Is Falling

Sir Isaac Newton did the gravity thing he had an apple fall on his head and he turned it into a law unlike chicken little who thought the sky was falling
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Old 12-25-2005, 06:52 AM
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Default The ground

It didn't fall on his head, it fell on the ground, but good guess anyway!
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Old 12-25-2005, 04:08 PM
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Default

oh, thats too bad-it was in a play that it fell on his head-opps
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Old 12-27-2005, 07:28 PM
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Question

cool but didn't newton found the mathimatics of gravity?
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The eternity of love.
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Praise Lord Jesus Christ!

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what is the meaning of life?

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