The Circle of the Sciences: Mechanical philosophy
R. Griffin, 1860 - Science
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acting angle applied atmosphere axis balance base beam becomes body called cause centre of gravity circle column communicated consequently considerable couple cubic cylinder described determine diameter direction distance divided draw effect elasticity engine equal equilibrium Example experiment expression extremity fall feet figure fixed fluid foot force give given greater half Hence horizontal inches inclined increased length less lever load magnitude mass material matter means measure mechanical motion moving multiplied nearly opposite P₁ P₂ parallel particles passing perpendicular piston placed plane portion position practical pressure produced projection proportion pulley quantity represented resistance rest resultant round side solid space specific gravity square steam straight strain strength substance supported suppose surface tube unit velocity vertical vessel volume weight wheel whole
Page 486 - Square Measure. 144 square inches 1 square foot, 9 square feet 1 square yard, 30J square yards 1 square rod, 40 square rods 1 rood, 4 roods 1 acre.
Page 217 - We know now that the underlying principle is the same as in a mercurial barometer : it is the pressure of the atmosphere on the surface of the water in the well that pushes the water up into the pump.
Page 416 - Multiply the square of the length of the crank in inches by 1-661, and then multiply the square of the diameter of the cylinder in inches by...
Page 16 - Impenetrability is that property of matter which prevents two bodies from occupying the same space at the same time.
Page 13 - Is not this Medium much rarer within the dense Bodies of the Sun, Stars, Planets and Comets, than in the empty celestial Spaces between them? And in passing from them to great distances, doth it not grow denser and denser perpetually, and thereby cause the gravity of those great Bodies towards one another, and of their parts towards the Bodies; every Body endeavouring to go from the denser parts of the Medium towards the rarer?
Page 487 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 16 - nay all the known bodies in the universe together, as " far as we know, may be compounded of no greater a " portion of solid matter than might be reduced into a <' Globe of one inch only in diameter, or even less.
Page 412 - To find the piston speed of an engine, multiply the stroke in inches by the number of revolutions per minute and divide the product by 6. EXAMPLE. — An engine with a 52-inch stroke runs at a speed of 66 revolutions per minute.
Page 174 - ... which is equal to the area of the surface, and altitude equal to the depth of the centre of gravity of the surface below the surface of the fluid.
Page 39 - Majesty to inquire into the subject of weights and measures, that a cubic inch of distilled water weighed in air by brass weights at the temperature of 62 degrees of Fahrenheit's thermometer, the barometer being at 30 inches, is equal to 252 grains, and 456 thousandth parts of a grain...