Germany in 1912: Images 271 to 275
Saturday, August 02, 2014
The propeller of a steamer. - The propellers of the "Kronprinzessin Cecilie" measure about 14 meters in diameter and have a respectable weight of 36,000 kg. |
The experimental basin. - In this basin paraffin models are in turn placed in the water and weighted down to the required depth. |
The train rolling on rails above the water surface carries with it the model, uses the apparatus for which it is provided, records the resistance, the speeds and the differences by immersion. |
The yacht "Walküre". - The Hamburg maritime fleet includes 1,320 ships with a total tonnage of nearly two million tonnes, a large part of which comes from sailboats. |
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