About 2,400 years ago Aristotle mentions the use of diving bells, apparatuses that convey divers to the bottom of the sea -- or at least below the surface of the water -- and allows them to breathe -- at least until the air runs out. Learn about the physics of this clever and ancient invention and how it's been used to sabotage enemy boats and build the Broo ... Show More
Jul 2021
Ancient Pacific Navigation, Part 3
The original discoverers of the Polynesian Islands traversed a vast ocean, bringing civilization to islands untouched by human activity. How did they do it? In this Stuff to Blow Your Mind three-parter, Robert and Joe discuss the sheer scale of the Pacific Ocean and environmental ... Show More
49m 16s
