Eyeballs

Eye balls are made out of semi sphericals adjusted for the focal length. For both the eyeballs the

eye lens is +3 Diopter. Movable spectacles is operated from a flexible shaft with a lever outside the glass enclosure. The +1 lens is mounted in the spectacle for Long Sight and -1 lens is mounted for the short sight spectacle.

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Co-0peration

This is a very interesting exhibit which tests the patience of the visitors also. The pull string pass over pulley with ball bearings.

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3D-Zeotrope

We have used 'Piaggo' scooter front wheel assembly along with the wheel rim. The table is mounted on the rim and the rim also used as a pulley. The strobe is a standard one which they use in the theatres.

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