How does a traffic light detect cars?

The English-language terms for different baked goods vary based on where English is being spoken. Learn why an American cookie is a British biscuit, an American biscuit is a British scone, our muffins have nothing to do with each other, and pudding doesn't have to involve pudding ... Show More

When dark spots appear on the surface of the Sun, we're actually seeing the result of massive distortions in solar magnetic fields caused by roiling plasma -- and they appear in regular(ish) 11-year cycles. Learn what we know (and don't know!) about sunspots in today's episode of ... Show More

A sunken continent called Lemuria was first proposed as a scientific explanation for lemur populations in the mid-1800s, but it quickly became part of the mythology of Theosophist mystics and Tamil cultural activists alike. Learn the truth and myths behind Lemuria (plus what Darw ... Show More

<p>We often take traffic lights for granted, but regulating the flow of traffic takes a lot of planning and technology. Jonathan and Chris detail the technology behind traffic lights in this episode.</p><p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodca ... Show More

This 2019 episode looks at a few of the moments in traffic light history that got us to where we are today, as well as what made them a necessity in the first placeSee omnystudio.com/listener for privacy information. 

Beep, Honk, Honk...Do you find yourself stuck in traffic more often than you would like to? Like it or not, traffic is a topic of conversation in our lives. In today's podcast and communication lesson, we will talk about traffic and learn useful vocabulary for such discussions. 

This week, a viral video of a robo-traffic-cop in Shanghai has the team contemplating the science of traffic. How do traffic jams with no discernible cause actually form? Does the weather experience traffic jams? And why do our cords also seem to get tangled in their own little c ... Show More

<p>Everyone knows that stop signs are red octagons -- but why? And why are traffic lights red, yellow and green? Join Scott and Ben as they explore the history of -- and psychology behind -- traffic signs.</p><p> </p> Learn more about your ad-choices at <a href="https://www.ihear ... Show More

If you've ever been stuck in traffic, you know turn signals are a vital part of safe driving (though not everyone seems to think so). But where did these nifty little blinking lights come from? Why didn't they come along until years after the invention of the automobile? Join Ben ... Show More

<p>In episode 269, we get curious about traffic lights for Parker and Alex from Arizona.  We learn about the history of traffic lights, why traffic lights are so important, and how we selected green, yellow, and red to be the traffic light colors.  Noah also joins us to share fiv ... Show More

Let’s talk about traffic and traffic jams.