Liquid Compass
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An illustration of a liquid compass. “A, Bowl, partly in section; B, Expansion chamber; D, The glass; G, Gimbal ring; L, Nut to expand chamber when filling bowl; M, Screw connector; N, Hole for filling; O, Magnetic needle; P, Buoyant chamber; Q, Iridium pivot; R, Sapphire cap; S, Mica card.” -Britannica, 1910
Keywords
liquid compassGalleries
CompassesSource
Encyclopaedia Britannica (11th ed., vol. 6) (New York, NY: The Encyclopaedia Britannica Company, 1910)
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