The Italian polymath Leonardo da Vinci drew his design for an "aerial screw ... with the Greek word pteron (πτερόν, meaning "wing"), the word "helicopter" is derived. The design comprises a large ...

I have come to Windsor Castle to see the queen’s collection of Leonardo da Vinci drawings ... he sketched a design for a mechanical wing. Bottom: Doctoral students in David Lentink’s Stanford ...

Leonardo sketched the earliest known tank in history around 1487, which is known as the da Vinci Tank today. Learn more about its design and workings. The da Vinci Tank was first mentioned in a letter ...

La belle ferronnière - a portrait of a lady from the court of Milan - is a work attributed to Renaissance artist Leonardo da Vinci It took ... machine based on the wings of a bat - Leonardo ...