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TechStuff

TechStuff is a show about technology. And it?s not just how technology works. Join host Jonathan Strickland as he explores the people behind the tech, the companies that market it and how technology affects our lives and culture.

www.howstuffworks.com/

Categorized: Technology Education

Feb 14, 2016 10:01 AM
How Railroad Crossing Signals Work

Every driver has seen a railroad crossing -- the iconic system of bars, lights and warning bells designed to keep cars away from trains. But how do they actually work? In this episode, the guys explore the technology powering railroad crossing signals.

podcasts.howstuffworks.com/hsw/podcas...

 
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