File:1889 Gymnote Gyroscope.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:35, 14 November 2010		721 × 882 (132 KB)	Rbmn	{{Information \|Description={{en\|1=In 1889, Arthur Krebs added an electric motor of his own to the Dumoulin (builder of the Foucault gyrocope) marine gyrocope, in order to give a gyrocompass to the french experimental submarine ''Gymnote''. Giving the

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