The sun revolves around the earth - for more than 1500 years, this world view of the Greek astronomer Ptolemy was seen as an incontrovertible truth. It fit perfectly into the Christian worldview, in which the earth and God's creation were the center of the world. But in the Ptolemaic calendar, the date and the seasons diverged. The pope demanded a calendar reform. The astronomer and scholar Nicolaus Copernicus was also commissioned to do so. But Copernicus had long ago discovered something groundbreaking and revolutionary. Although it would set the calendar right, it threw the pious Christianity into a serious conflict: The earth revolves around the sun! A dangerous thought. Should he publicize his scientific calculations, or should he continue to hold to the Christian worldview?
Carl Sagan covers a wide range of scientific subjects, including the origin of life and a perspectiv...
From the flashes of genius to the hard-won discoveries after many years of trial and error, this enl...
A lecture series about the basic problems of flight, explained by visual presentation of flow experi...
Examining the life and times of Adolf Hitler and following the full arc of his ascent, tyrannical re...
A multimedia course for secondary school and college teachers that examined global patterns through ...
From legendary John Ward, immortalized in fiction as Jack Sparrow, and English explorer Francis Drak...
Dr Xand van Tulleken and archaeologist Raksha Dave tell the brutal story of one of the most bloody a...
With the 00s now firmly in our rear view mirror, the decade is ripe for re-evaluation. From 9/11 to ...
Award-winning journalist and author Chris Masters investigates the tumultuous 1920s and 1930s and th...
Lifestyles of the Rich and Famous is an American television series that aired in syndication from 19...
Myths die hard, and the history of the 20th century is no exception to this rule. Even today, we hol...
Jesus of Nazareth, the founding figure of Christianity, is also an exceptional character in the Kora...
A documentary which explores the remarkable parallels between the careers of Adolf Hitler and Winsto...