Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 120
lb loaded with mercury orshot, and above in a long slender tube which carries a scaleand projects above the surface when the hydrometer isfloated in water (Fig. 58). Xow, in order that any solid may float, it must displacean amount of liquid whose weight is just equal to its ownweight. Hence when… … Fig. 57. -Hydrometer of constant weight.(Nicholsons.) 102 PHYSICS distilled water be marked 1, the markings on the scalebelow this point will be greater than 1, and above will beless than 1. By adjusting the hydrometer so that it will sink aboutmidway on the scale in water, the one instrument…
Physics
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