The Models of Leonardo Da Vinci 
August 15 - November 18, 1995

Inclinometer
Leonardo always sought the greatest possible accuracy, and therefore was constantly designing devices for measurement, such as this instrument to determine the degree of incline of a given surface by relation of the plumb bob to the concentric scale inscribed below its mounting. the accurate figuring of slight gradients was of great importance in laying out canals.

Multi-barreled Cannon and Machine Gun

Triple-Tier Machine Gun
There are twelve barrels in each tier. While one is fired, another tier is loaded and the third cools. this weapon, like others Leonardo designed, shows him constantly attempting to achieve greater fire power.