Re: [Phys-l] Galileo was wrong

["LaMontagne, Bob" <RLAMONT@providence.edu>]

My recollection is that the "flat" part of the bowl has to be so large that it follows the curvature of the earth. I recall reading that Galileo's argument was that if an object got further from the earth's center it slowed down and if it got closer it sped up. But if it stayed the same distance from the center it wouldn't change speed. He hadn't totally left the Aristotelian world view.

Bob at PC

________________________________________
From: phys-l-bounces@carnot.physics.buffalo.edu [phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Bernard Cleyet [bernardcleyet@redshift.com]
Sent: Wednesday, September 22, 2010 12:38 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] Galileo was wrong
He hadn't to
That's quite contrary to what I was taught!, incorrectly??

I remember a drawing of a marble oscillating in a bowel with one side being progressively flattened.  His argument:  with flat the marble continues "forever". A "gedanken"?

bc disabused?



On 2010, Sep 22, , at 08:50, Joseph Bellina wrote:

> He needed some sort of circular inertia to explain the continue
> motion of the planets.  Just a guess, perhaps he appealed to the
> ideal circular motion as why they continued.
>
> joe

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