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Exhibit Turns da Vinci’s Drawings Into Real Objects

In addition to being a successful artist, Renaissance genius Leonardo da Vinci designed many practical machines, some of which are still in use today, although in different forms. But a number of his projects were never realized — until today, in an exhibit at London's Science Museum. It took a whole day for a team of museum technicians to assemble a life-size model of a construction crane, built according to da Vinci’s 15th-century drawings. A quick demonstration testified to its...

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