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Rolling bridge

It is an animation of the Paddington bridge, London.

The bridge consists of 8 spans of isosceles trapezoid shape.

A revolution joint (A) connects two adjacent spans.

Besides they are connected by two green conrods which are linked together by a revolution joint (B).

Yellow cylinder and red piston connect A and B.

7 pairs of hydraulic cylinders moving at the same speed roll and straighten the bridge.

At curled up pisition the brigde looks like a sculpture of octagonal shape on one side of the bank.

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