BrainStuff
Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.
December 25, 2015 • 4 min
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.
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Josh Clark
Jonathan Strickland
Ben Bowlin
Lauren Vogelbaum
Cristen Conger
Christian Sager
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