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One of four original Swan and Raven models

1867

One of four original Swan and Raven models used by Froude

1867
One of four original Swan and Raven models used by William froude on River Dart in 1867 measuring 12 foot in length.

One of four original Swan and Raven models

1867
One of four original Swan and Raven models used by William Froude on River Dart in 1867 measuring 12 foot in length.

One of four original Swan and Raven models

1867
Parts of William Froude's original Resistance Dynamometer (1871) used in his researches on surface tension and ship resistance consisting of 1) Lever and index arm 2) counterweights 3) pivot 4) wood framing, by William Froude c.1871

Parts of William Froude's original Resistance Dynamometer

1870