11/13/2013 11:24:00 AM
Exam: Friday 13 thDecember at 2:00 pm
Continuation from last week
1543 and after: the replacement of an earth centered universe with a sun
Ptolemy was the model that was replaced (earth-centered).
Everything moves around Earth in a circular fashion.
Nicholas Copernicus (1473-1543) was the original inventor of the
Johannes Kepler (1571-1630) discovered planets actually move in
Technology begins to give us views of things in nature hitherto
unseen – technology gives us a chance to break through some of
the earlier traditions (backed by mathematics).
1420s: the ocean voyages, leading to the discovery of ‘the new