We've had stoplights to direct us and our vehicles through intersections for around a century now. A design studio in Moscow has a concept for a high-tech refresh of stoplight technology. Plus: LEGO builder Douglas Hughes pays tribute to the late, legendary game show host Alex Trebek with a LEGO kinetic sculpture of Jeopardy!
Nobody likes being stuck at a stoplight, but before there were systems in place to make drivers take turns, the roads were not good. Here are a few of the inventions that helped us (mostly) stop crashing into each other. Plus: why did Syracuse, New York set up an upside-down stoplight, with green on top?