-----Original Message-----
From: Christopher D. Green
[<mailto:chri...@yorku.ca>mailto:chri...@yorku.ca]
Sent: Wednesday, September 15, 2010 2:49 PM
To: Teaching in the Psychological Sciences (TIPS)
Subject: Re: [tips] Galileo Was Wrong?
Just for the record, Aristarchus of Samos outlined a
heliocentric model of the universe 1700 years before Copernicus.
Chris
--
Christopher D. Green
Department of Psychology
York University
Toronto, ON M3J 1P3
Canada
416-736-2100 ex. 66164
<mailto:chri...@yorku.ca>chri...@yorku.ca
http://www.yorku.ca/christo/
==========================
=========
Marc Carter wrote:
Good points, John.
It was really Copernicus who gave us the notion that you
could better explain the motions of the planets; it was
Kepler who worked out elliptical orbits (but hated them --
circular motion required no explanation, but ellipses do),
and Newton who invented gravity to explain the elliptical orbits.
Galileo gave observational evidence that there were more
than "seven heavenly bodies" in his observations of the
satellites of Jupiter.
He gets the "blame" because he was the one who provided
evidence for the notion that things weren't as the Ptolemaic
system would have it.
m
--
Marc Carter, PhD
Associate Professor and Chair
Department of Psychology
College of Arts & Sciences
Baker University
--
-----Original Message-----
From: John Kulig
[<mailto:ku...@mail.plymouth.edu>mailto:ku...@mail.plymouth.edu]
Sent: Tuesday, September 14, 2010 6:44 PM
To: Teaching in the Psychological Sciences (TIPS)
Subject: Re: [tips] Galileo Was Wrong?
Yeah, I agree! (sort of, but ...) My understanding
(haven't read the
original) is that Copernicus (Latinized from the Polish name
Kopernik) was theoretically embedded in the medieval way
of thinking
which was to try to fit the available data into pre-existing
medieval-style thinking. I believe he showed that either a geo or
helio-centered universe could be made consistent with
existing data.
Galileo deserves a tremendous amount of credit for pushing science
forward, but look to Kepler's three laws of planetary motion
(1609/1619) for a real data-driven science (Tycho Brahe's data
though), moving from the perfect circles of medieval thinking to
elliptical orbits. But in empirically derived laws, he saw a
different sort of perfection, mathematically, such as the
relationship between distance from the sun and time to
orbit (3rd law
I believe) ...
==========================
John W. Kulig
Professor of Psychology
Plymouth State University
Plymouth NH 03264
====================================================================
GALILEO GALILEI:
I do not feel obligated to believe that the same God who
has endowed
us with sense, reasons, and intellect has intended us to
forgo their
use.
====================================================================
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