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Vorticism in aeronautics (1923)

NASA Technical Reports Server (NTRS) · leaf 44

An illustration from Vorticism in aeronautics, 1923, leaf 44 — Fig*3.

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$An illustration from Opticks, or, A treatise of the reflexions, refractions, inflexions and colours of light ; Also two treatises of the species and magnitude of curvilinear figures (1704)$