International Library of Technology: A Series of Textbooks for Persons Engaged in the Engineering Professions and Trades, Or for Those who Desire Information Concerning Them, Volume 36International Textbook Company, 1903 |
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abscissas acre altitude amount angle approximate assumed average axis brick calculation called canal celestial body celestial equator celestial longitude celestial sphere center wall circle circular sewer coefficient computed constructed convenient corresponding cross-section cubic feet cubic foot curve depth of flow determined diameter dimensions distance district drainage earth ecliptic effluent egg-shaped sewer elevation ellipse equal equation example feet per second filtration flume foot formula given by formula grade greater height Hence horizontal hour hydraulic mean radius inches irrigation latitude length longitude masonry measured meridian miles moon motion necessary observed obtained orbit parallax piezometric planet pole pounds practical quantity rate of rainfall reservoir right ascension sewage shown in Fig sidereal sidereal day sidereal period slope star storm water storm-water stream stress sufficient sun's surface synodic period tion trunk sewer truss velocity vernal equinox vertical wetted perimeter zenith
Popular passages
Page 1345 - The sidereal period of a planet is the time required by the planet to make a complete revolution around the sun from a star to the same star again, as seen from the sun. The synodic period of a planet is the time between two successive conjunctions of the planet and sun, as seen from the earth. The relation between the sidereal and synodic periods is I—I -! s ~f 7...
Page 1293 - A globe is a solid figure, and may be supposed to be generated by the revolution of a semicircle about its diameter, which becomes the axis of the globe, and the centre of the semicircle is the centre of the globe.
Page 1316 - Laws, are: I. The orbit of each planet is an ellipse, having the sun in one of its foci. II. The radius vector joining the sun to the planet sweeps over equal areas in equal times. III. The squares of the periodie times of the several planets vary as the cubes of their mean distances from the sun.
Page 1405 - Star, and are hence called the Pointers. A line from Polaris perpendicular to the line of the Pointers and on the opposite side to the Great Bear passes at 48° distance through Capella, one of the brightest stars. In the same line, about the same distance on the opposite side of the Pole, is a Lyra, also called Vega and Lyra, a large white star in the Harp. At one third of the distance from Arcturus to a Lyrae is...
Page 1477 - The first two figures are based on the fact that the side of a regular hexagon is equal to the radius of the circumscribed circle.
Page 1345 - B, an inferior conjunction. When a planet is at O, directly opposite to the sun, it is said to be in opposition. The elongation of a planet is the angle formed by lines drawn from the earth to the sun and to the planet. The greatest elongation of an inferior planet occurs when the planet is at D or at F. The elongation of a superior planet when at L is the angle SE L. When the elongation of a superior planet is 90° (either at M or N) the planet is in quadrature.
Page 1601 - When the albuminoid ammonia amounts to .05, then the proportion of free ammonia becomes an element in the calculation ; and I should be inclined to regard with some suspicion a water yielding a considerable quantity of free ammonia along with more than .05 parts of albuminoid ammonia per million.
Page 1468 - ... to make a preliminary design of the section and grade. A trial line for the canal can now be run. There are several ways in which this can be done. One of the best and most expeditious methods is this : Suppose a grade of 4 ft.
Page 1307 - SYSTEM. 68. The primary circle of this system is the celestial equator, which is the great circle in which the plane of the earth's equator intersects the celestial sphere. The celestial equator is also called the equinoctial circle, or simply the equinoctial, because, when the sun is in the plane of the equator, the days and nights are of equal length all over the earth. The poles of the equator coincide with the poles of the celestial sphere. * In Fig.
Page 1293 - Every point on a circle of a sphcre is at a constant angular distance from cither of the poles of the circle. For, during the revolution of the generating semicircle (Fig. 1), the arc AP remains constant, and A is the pole of the circle described by the point P. 19. The constant angular distance of a point on a circle of a sphere from its adjacent pole is called the angular radius of the circle. The angular radius of a small circle is less than a quadrant, and the angular radius of a great circle...