The Principles of Mechanics Explaining And Demonstrating the General Laws of M
The Principles of Mechanics Explaining And Demonstrating the General Laws of M
William Emerson
The book The Principles of Mechanics Explaining And Demonstrating the General Laws of M was written by author William Emerson Here you can read free online of The Principles of Mechanics Explaining And Demonstrating the General Laws of M book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Principles of Mechanics Explaining And Demonstrating the General Laws of M a good or bad book?
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. . For by the property of the leaver CPx P + CD x P—CBx^K that \sPDxP-CBxlV. And CB : PD : :^^-:Jf^ uniVer- fally. Whence, if DP or Di — CB, then/F- P. If DP or Bi — iCB, then PV—2P, ^c. But if CB be greater than Di, I 2, l^c. Then will the conftant weight P be greater than /F, ilF, &c. The properties neceflary for a fteelyard to have, are thefe. 1. That the fixt weight P being placed at D/' wher& the. Di- vifions begin, fhall make the beam in equilibrio. /: ; r'. 2. That the divifions D i, 1 ...2, 2 3, ^c. Be ^eqiialtd. One" another. 3. That CB may be of any length, provided the weight P be rightly adjullcd to it : 1-72;. Fo that CB : Di :: P : 1 pound, if ^^be pounds. Or CB : Df . :: P : i ftone, if J^ be Hones. 4. That the beam be flrait, and the upper edge in a line with the centers C, B. 5. That it move eafily and freely on its center C. Many Sea. XIII. COMPOUND ENGINES. 189 Many fteelyards are likewife graduated en the under fide, f 1 c. Wh. Ch may be ufed by turning them upfide down.
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