How does a traffic light detect cars?

When every minute counts, search-and-rescue dogs can help locate disaster victims far faster than humans alone. Learn about how they're trained in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/animal-facts/sar-dog.htm/printableSee omnystudio ...  Show more

The tradition of dropping a ball in Times Square to mark the beginning of a new year only goes back about a century. Learn about the history -- plus four weird things that other cities drop instead -- in this classic episode of BrainStuff.See omnystudio.com/listener for privacy i ...  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.

Since the invention of the automobile, car manufacturers and drivers have pushed the limits of technology toward one primary goal: speed. Learn more about the need for speed in this podcast from HowStuffWorks.

Google collects data from cell phone users like you to create a database of traffic information for Google Maps. Jonathan and Chris discuss the pros and cons of traffic monitoring tools in this episode.

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

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