THE earliest conception of an auxiliary motive power in navigation is contemporaneous with the first use of the wind; the name of the inventor, “unrecorded in the patent-office,” is lost in the lapse ...

THE event that settled the argument took place in April 1845. The screw-driven Rattler and the paddle steamer Necto , both ships of similar size and power, were joined stern to stern and engaged in a ...

THE discussion of this day week, on flying machines, in the British Association was not, for want of time, carried so far as to prove from the numerical results of observation put before the meeting ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Mechanical engineer Isaac Dripps ...

To mark the centenary of practical marine screw propulsion, a special exhibit was opened at the Science Museum, South Kensington, on February 11. In accordance with the usual practice of the Museum, ...

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These strangely-shaped twisted-toroid propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, ...