Jan 9, 2020
Some recent media accounts have speculated that the red supergiant star in the constellation of Orion is about to explode in a cataclysmic supernova based on recent observations of the star's dimming brightness. We examine the evidence and offer a different explanation.
Dec 24, 2019
In this episode, we trace the development of Hellenistic geography from the work of Polybius, through Strabo, to its conclusion with Claudius Ptolemaeus.
Oct 29, 2019
In this episode we examine the development of a more empirically based geography in the Hellenistic period from the voyage of Pytheas to the map of Eratosthenes.
Oct 1, 2019
Beginning with Homer's Iliad, we look at the development of Greek geographical models of the Earth through the Classical Period.
Aug 27, 2019
For 220 years, the Cassini family was among the most powerful and influential scientific dynasties of Europe. In we look at their work and lives in the period of Louis XIV, the sun King, through the end of the Bourbon monarchy.