How do stoplights know when to change?

We’re back! We’ve officially moved into our new headquarters! Come unpack with us and get a tour while we fill you in on some big news. Plus, new episodes of Brains On coming later this month and new Smash Boom and Forever Ago after that. If you want to support the show or drop u ...  عرض المزيد

We're moving the Brains On Universe Headquarters, and that means we have to stop putting out new episodes until we get settled. We know: not cool. But, our new home is going to be bigger and better and the absolute BEST. We can't wait until it's ready for you to visit. In the mea ...  عرض المزيد

What if traffic lights could adjust for the actual flow of traffic happening at any given moment? Learn how smart, networked technology could help drivers (and pedestrians) in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/s ...  عرض المزيد

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 ...

Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly.

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.