Lots of people have seen this video of wobbly lamp posts on the M62 motorway in northern England (). The posts are swaying erratically in the windy weather, and news articles cited vortex shedding as the reason. What does that mean?
Joyce O鈥橦are, Cleckheaton, West Yorkshire, UK
This article appeared in print under the headline 鈥淲ibbly wobbly鈥�
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