Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...
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The clever way traffic lights worked before computers
Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing ...
Some things are so ubiquitous that it's easy to forget they're designed for a reason. With more than 300,000 traffic lights set up across the United States, it's easy to take how they look for granted ...
Small cameras mounted on top of traffic lights have become a pretty common sight in the U.S., as they can be found in almost every state. It continues to get more common, as the number of traffic ...
Editor's Note: This is an excerpt from WBUR's daily morning newsletter, WBUR Today. If you like what you read and want it in your inbox, sign up here. Today is Diwali, the Hindu festival of lights. If ...
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