A A.J. New member Jan 25, 2011 #1 I'm doing a research paper on da vinci's swinging bridge but I can't find why he built it and if the model is being used today. Please help? Links would be helpful.
I'm doing a research paper on da vinci's swinging bridge but I can't find why he built it and if the model is being used today. Please help? Links would be helpful.
