Instructional Video3:19
Curated Video

The Demarcation Problem

12th - Higher Ed
Princeton historian of science Michael Gordin reflects upon the so-called demarcation problem: how can we find a way to objectively distinguish science from pseudo-science? He relates how it’s a very old and surprisingly complex issue.
Instructional Video
Crash Course

Crash Course History of Science #2: The Presocratics

9th - 10th
Meet the Presocratics in this Crash Course video. Long ago, some philosophers worked very hard to separate myths from what they actually knew about nature. Thales theorized that everything in the world is made of water. Pythagoras was a...