Smithsonian Magazine on MSN7d
Secret Passageways Recorded in Leonardo da Vinci’s Sketches Discovered Beneath a Medieval Castle in Milan
Using ground-penetrating radar and laser scanners, researchers identified subterranean structures just a few feet below the ...
Archaeologists Followed a Sketch by Leonardo da Vinci. It Led to Secret Tunnels Under an Ancient Castle.
An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...
Nanowerk3y
Leonardo's aerial screw
The Italian polymath Leonardo da Vinci drew his design for an "aerial ... an ornithopter and a hang glider. The pen-and-ink sketch outlines an idea for a flying machine similar to a modern helicopter, ...