At a rather pleasant spot in the Aegean Sea in the third century B.C., on the vine-rich island of Samos off the western coast of what is now Turkey, the Greek philosopher Aristarchus had just had a ...

STUDENTS of the history of astronomy may remember that those of the natural philosophers in old Greece who favoured a geocentric conception pictured the universe as being built up of several spheres ...

Copernican armillary sphere from set of two armillary spheres and a celestial globe constructed in paper on pasteboard with metal fitments supported on a decorative mahogany baluster base. Shows ...