Hart, Ivor Blashka, 1889- The mechanical investigations of Leonardo da Vinci / with a foreword by Ernest A. Moody.

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Hart, Ivor Blashka, 1889-

The mechanical investigations of Leonardo da Vinci / with a foreword by Ernest A. Moody.

Leonardo, da Vinci, 1452-1519

Aeronautics

Flight.

Mechanics -- History.