'The Art of Invention', which opens on 15 October at the Science Museum, London SW7, highlights the role of Renaissance artist-engineers with 40 large-scale models constructed from the original drawings. The show aims to demonstrate the interdependence of art and technology. It continues until 24 April 2000.
Top: working model of a spring motor, probably intended to regulate the movement of large clocks, as developed from a drawing by Leonardo. Above: the initial sketch for the spring motor.
Right: modular geometry informs many of Leonardo's architectural projects, as in this drawing for a centrally planned church.
Clockwise from above: transportable crane with hoist from a design by Francesco di Giorgio. Life-size working model of a flying machine from studies by Leonardo - the wings are driven by the back pedals, with the thrust amplified by a hand-operated crank. A trebuchet (for hurling stones in a siege) from a drawing by Taccola.