Science & Technology

Full Circle

The long and complicated history of why there are 360 degrees in a circle.

Sexual Eeling

The slippery subject of eel reproduction evaded human understanding for millennia.

A Perfect Landing

Overshadowed between two dramatic missions, the success of Apollo 12 was vital to the continuing space project.

Travels Through Time #4 – Simon Schaffer, 1684

In this episode Simon Schaffer, Professor of History of Science at the University of Cambridge, visits three events pivotal to the genesis of Isaac Newton's paradigm-shattering book the Principia Mathematica.

The Invention of World History

For most of history, different peoples, cultures and religious groups have lived according to their own calendars. Then, in the 11th century, a Persian scholar attempted to create a single, universal timeline for all humanity. 

Tyrants and Robots

Autocrats have deployed automatons as weapons since antiquity, not just in myth but in reality.