What in the world is this? New exhibition explores Da Vinci's machines

Discovery Place exhibition, part of its Year of the Engineer, takes a look at Da Vinci's machines. Here's Christopher Emerson explaining one of them:
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Discovery Place exhibition, part of its Year of the Engineer, takes a look at Da Vinci's machines. Here's Christopher Emerson explaining one of them:

Parents: Think engineering isn’t for your kid? This show could change your mind

December 14, 2017 10:27 AM