How does a traffic light detect cars?

Some U.S. cities and states have officially changed Columbus Day to Indigenous Peoples' Day. Learn why -- and why some Americans disagree with the change -- in this classic episode of BrainStuff, based on this article: https://people.howstuffworks.com/culture-traditions/holidays- ...  Show more

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

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.

The history of traffic signals is way more interesting than you might think. Trust us. 

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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.