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The EDU61003 Leonardo da Vinci Swing Bridge design is a portable
lightweight bridge that was intended to span across a body of water so
armies could cross and then quickly disassemble and tow away.
By means of an articulated system of winches and wheels the bridge was
designed to rotate 90 degrees...
The scientific genius of Leonardo da Vinci is brought to life through
this articulated model. The invention that inspired this snaptogether
replica is taken from the pages of Da Vincis priceless and
aweinspiring notebooks. All models are made of plastic and require no
special tools. Manuals are very educational and teach how these
inventions have evolved into what they are today.