Most people are familiar with speedometers in cars, but do you know how air speed is determined? In this episode, Marshall explains how devices called pitot tubes gauge the speed of moving aircraft.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Why Do We Put Diamonds on Engagement Rings?
11:55

How Did the Stonewall Riots Work?
16:58

How Did the Smallest Primates Get Such Big Eyes?
08:27