Great Moments In Science - with Dr Karl Kruszelnicki

ABC Radio National

Science & Medicine

From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.


Traffic button pushes beautiful design

February 9th, 2016

Episode 85 of 121 episodes

Next time you're at the lights, stop to appreciate the humble pedestrian button. The design is so beautiful that even Oscar Wilde would approve, says Dr Karl.

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