trustle > EngliSea > Selected Clips > Dave
 
 Professor Dave Explains
http://qindex.info/i.php?f=4096#3813
 
 History of Astronomy 1
The Celestial Sphere and Early Observations
http://qindex.info/i.php?f=4096#3454
 
 History of Astronomy 2
Early Measurements of the Earth
http://qindex.info/i.php?f=4096#3461
 
 History of Astronomy 3
Copernicus and Heliocentrism
http://qindex.info/i.php?f=4096#3998
 
 History of Astronomy 4
Tycho Brahe
http://qindex.info/i.php?f=4096#3999

-