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Unread 01-01-2018, 04:21 PM
Senior Member
Join Date: Jan 2008
Posts: 52,554
Re: Would calling myself a Scorpio make me a poser

Originally Posted by obsidianmineral View Post

Well, the fact is
that most people
use the tropical zodiac
for a reason.

One wonders why

Ptolemy and Ancient Astronomy

Melvyn Bragg and his guests discuss
the ancient Greek astronomer and mathematician Ptolemy

and consider how and why
his geocentric theory of the universe held sway for so many centuries.

In his seminal astronomical work, the Almagest
written in the 2nd century AD, Ptolemy proposed
that the Earth was at the centre of the universe

Ptolemy's model of the universe remained dominant for over a thousand years.
It was not until 1543, and Copernicus's heliocentric theory of the world
that the Ptolemaic model was finally challenged
and not until 1609 that Johannes Kepler's New Astronomy
put an end to his ideas for good.
But how and why did Ptolemy's system survive for so long?
__________________ Hippocrates Let food be your medicine: let medicine be your food. Rosencrantz & Guildenstern are Dead Tom Stoppard Every exit is an entrance to somewhere else. VETTIUS VALENS FREE
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