Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 145
like ABC, at the sametime holding an object at 0. Note theposition of the image 0 and its re-markable distinctness. (2) In Fig. 96 SS is a disk or square of thin wood about 10 cm. wide, LO is a piece of knitting-needle about 8 cm. long. The wood floats in water which fills a vessel to the brim AB…
Physics
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