A flying machine designed by Leonardo da Vinci may have been functional and much quieter than modern drone designs. Rajat Mittal at Johns Hopkins University in Maryland and his colleagues have found ...

A flying machine resembling a helicopter, designed by Leonardo da Vinci, could be used to develop quieter and stealthier modern drones, according to a new study published in the journal Bulletin of ...

Leonardo da Vinci’s notebooks provide unique insight into his mind, knowledge and discoveries. More than 4,000 pages of Leonardo da Vinci’s notebooks remain. Over his lifetime, he made meticulous ...