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Principle of the helicopter, drawing by Leonardo da Vinci

Author

La Navigation Aérienne L'aviation Et La Direction Des Aérostats Dans Les Temps Anciens Et Modernes (Air Navigation Aviation And The Direction Of Aerostats In Ancient And Modern Time)
by Gaston Tissandier
Published in 1886
Available from gutenb

Posted on

Wednesday 5 August 2020

Dimensions

450*314

Tags

Country:Italy, Flight, Middle Ages

Albums

• Ages and Civilisations / The Middle Ages / Technology

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