No nails, no glue, no ropes. Nothing but physics.
Leonardo da Vinci’s vast contributions to the arts and sciences earned him a seat among history’s indisputably greatest minds. The polymath’s interests spanned from engineering to painting, botany to astronomy and all points between, including music. (Did you ever hear about the viola organista, Leonardo’s own musical instrument?)
His extensive archive of ideas and schematics has been collected in a 12-volume set known as the Codex Atlanticus. In it, one also finds this self-supporting bridge, built only with wooden poles and beams. That’s it: no nails, no glue, no ropes. Nothing but physics. See the video below to find out how it works!