Agricultural engineering: a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader

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Webb Publishing Co., 1914, c1913., 1913 - Technology & Engineering - 554 pages
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Page 401 - The Moment of a Force about a point is the product of the Force by the perpendicular distance of the point from the line of action of the force.
Page 18 - TABLE. 144 Square Inches (sq. in.) make 1 Square Foot sq. ft. 9 Square Feet " 1 Square Yard sq. yd. 30} Square Yards
Page 554 - A list of the best supplementary reading, including farmers bulletins, is given at the close of each chapter. The style is easy, subject matter well arranged and vital, and the book is of excellent mechanical makeup throughout.
Page 181 - As to the influence of machinery on farm labor, all intelligent expert observation declares it beneficial. It has relieved the laborer of much drudgery ; made his work easier and his hours of service shorter ; stimulated his mental faculties ; given an equilibrium of effort to mind and body ; and made the laborer a more efficient worker, a broader man, and a better...
Page 537 - The principle of a knot is that no two parts which would move in the same direction if the rope were to slip, should lay along side of and touching each other...
Page 34 - Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area.
Page 404 - Materials. For steady stress. (Buildings.) For varying stress. (Bridges.) For shocks. (Machines.) Timber 8 10 15 Brick and stone 15 25 30 Cast iron 6 15 20 Wrought iron 4 6 10 Steel 5 7 15 P 100,000 A = K- = -
Page 554 - It covers the cereals, including corn, wheat, oats, rye, barley, etc. ; forage crops, including hay grasses, clover, alfalfa, cowpeas and other legumes; how to make good meadows and pastures, and the art of hay making, etc.; root crops; sugar crops...
Page 179 - The year 1850 practically marks the close of the period in which the only farm implements and machinery other than the wagon, cart, and cotton gin, were those which, for want of a better designation, may be called implements of hand production.
Page 77 - Thus if the body starts from rest, it will have a velocity of 32.2 feet per second at the end of the first second, 64.4 feet per second at the end of the second second, 96.6 feet per second at the end of the third second and so on.

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