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ben ge davin ki kok i bir kahin o ongeden olanlari gormus ve bir sira kehenetler vermiss ve bu kehanetlerin hele bir koku gizli orgutlerge saklanmisdir ve hala bir sira olaylarin ortaya kikmamasi gibi bunlarin da ortaya kikmayacakdir
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An aerial screw (c. 1489), suggestive of a helicopter, from the Codex Atlanticus
{{Information |Description= Leonardo da Vinci, design for a helicopter |Source= Bortolon, ''The Life and Times of Leonardo'', Paul Hamlyn |Date= late 15-early 16th century |Author= Leonardo da Vinci |Permission= PDArt |other_versions= }} [[Category:Leona