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Scientific American, Vol. 75, No. 1 (1896) (1896)
leaf 7
hed by lying in a scrap yard at Pitts- bolts in the usual manner to burg demonstrates the tre- a wood backing and was at- mendous pressure of water at tacked in rapid succession by a great depth. It was con- five 6 inch and three 4 inch structed fora diving bell, and Holtzer armor-piercing shell… … recommended that the re- each side of six feet square. maining armor under manu- The total pressure, therefore, facture by the Carnegie Com- on the cube was 2,728,548 pany be accepted without pounds, or 1,361°7 tons.—In- further test, which recom- dianapolis Journal, RUSSIAN GOVERNMENT. © 1896…Internet Archive · Public domain (published before 1931). Free to use for anything.
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