The LED traffic light and the danger of "but sometimes!"

unknown user
2019-06-23T07:55:10Z

Link URL: https://www.youtube.com/watch?v=GiYO1TObNz8

Comments URL: https://tildes.net/~transport/ess/the_led_traffic_light_and_the_danger_of_but_sometimes

Votes: 7

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