Astronomy ; Drainage ; Sewerage ; Water Supply and Distribution ; IrrigationInternational Textbook Company, 1903 - 548 pages |
Common terms and phrases
abscissas acre altitude amount angle approximate assumed average axis brick calculations 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 determined diameter dimensions distance district drainage earth ecliptic effluent egg-shaped sewer elevation ellipse equal equation example factor of safety 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 stringer sufficient sun's surface synodic period tion trunk sewer truss velocity vernal equinox vertical zenith
Popular passages
Page 1288 - A sphere (Fig. 59) is a solid bounded by a uniformly curved surface, every point of which is equally distant from a point within, called the center. The word ball, or globe, is generally used instead of sphere.
Page 1403 - Pointers and on the opposite side to the Dipper passes, at 48° distance, through Capella, another bright star of the first magnitude. In the opposite direction and about the same distance from Polaris is a large white star called Vega; and at onethird distance from Arcturus to Vega is the bright star Gemma in the constellation Corona.
Page 1343 - A, we have a superior conjunction, and if the planet is at />', 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)...
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 1599 - 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 - A rough estimate of the length of the canal can be made from this survey, in connection with the topographical notes taken at the same time; then the approximate length, together with the total fall to be overcome, will enable us to make a preliminary design of the section and grade.
Page 1475 - The following illustrative example will make this plain: It is desired to establish the proper cross-section and grade of an earthen canal under the following circumstances: The quantity of water to be conveyed is 250 cubic feet per second. A velocity of 2 feet per second is desired. The side slopes are to have an inclination of 1 vertical to 1£ horizontal, and a depth of 6 feet of water is desired in the canal.
Page 1335 - A sidereal year is the period of a complete revolution of the sun, starting from and returning to the same fixed point among the constellations. If the vernal equinoctial point were a fixed point, the tropical year and the sidereal year would be the same.
Page 1289 - A small circle of a sphere is a section made by a plane which does not pass through the centre of the sphere.
Page 1291 - 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.