MAKE subscriber Joe Kerman sent us a link to this video about how mechanical controllers for traffic lights work. This is from a Canadian kid’s TV show from the late 80s (I think), called the Acme School of Stuff. I watched a number of other episodes on YouTube and found them pretty engaging and educational. [Thanks, Joe!]


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Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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