The course of a torpedo under the water is controlled by means of a gyroscope, a most ingenious device, . the elementary principle of which is exemplified by. a child's humming-top witli balance rings, which will spin at any slope.
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Bibliographic details
Sun (Christchurch), Volume I, Issue 236, 9 November 1914, Page 3
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39Untitled Sun (Christchurch), Volume I, Issue 236, 9 November 1914, Page 3
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Acknowledgements
This newspaper was digitised in partnership with Christchurch City Libraries.