A Collection of Mathematical Rules and Tables; Including Interest, Equation of Payment, Mensuration, Geometry, and Trigonometry, Rules for Calculating Diameter, Circumference, Area and Squaring the Circle - Together with the Metric System (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1887 edition. Excerpt: ...00527 Ice 94 58.7 Ivory 1.82 114. Lard 95 59.3 Lime 1.60 100 Naphtha... 848 52.9 Nitrate of Potash, or Saltpetre.. 200 Nitrogen Gas, part lighter than air.0744 Oxygen Gas, part heavier than air.00136.0846 Pitch 1.15 71.7 Powder 1 62.3 Rosin......1.1 68.6 Snow, compacted by rain 50 Snow, fresh 5-12 Tar. 1 62.4 Wax, Bees, average 97 60.5 Application Of The Above.--When the weight of a body is required, find the contents of the body in cubic feet and multiply it by the factor in the table. To find tbe velocity of a falling body, multiply the time in seconds by 32.166 for the velocity in feet per second. / Water. Fresh water is 1 part oxygen and 2 parts hydrogen; by weight, 88.9 oxygen, 11.1 hydrogen. One cubic inch at 62, barometer 30 inches, weighs 252.458 grains; from this it expands either from cold or heat. The temperature of 32 reduces it to solid ice, which expansion is about part of its original bulk as water, and this expansive force is sufficient to split iron water-pipes; by this expansive force rocks are split, and walls that are not of sufficient depth in the earth, are lifted upwards and overthrown. Wood remains sound for centuries, under either fresh or salt water, if not exposed to the action of the air or strong currents. Hard water contains considerable lime; water in lead pipes produces carbonate of lead, an active poison; but where lime is present in the water, it forms a coating inside, that prevents the poisonous formation. Many substances are held in solution, being extracted from the earth through which the water penetrates. Water is the sole product of the combustion of hydrogen in oxygen, or the atmosphere; according to Humboldt, 8 parts by weight of O. and 1 part of H. It is the important compound of all chemical mixtures....