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!]
How (analog) traffic lights work
Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.
View more articles by Gareth Branwyn