 | Richard Glazebrook - Hydrostatics - 1895 - 280 pages
...one such complete rotation is approximately constant. Owing to the motion of the earth round the sun the interval between two successive passages of the sun across the meridian of any place differs slightly from day to day. The average of such intervals during the year is the mean solar day.... | |
 | Charles Smith - Arithmetic - 1895 - 368 pages
...157. Table of Measures of Time. The Standard Unit of Time is the Mean Solar Day; that is, the mean interval between two successive passages of the sun across the meridian of any place. A day is supposed to begin at midnight. 60 seconds (sec.) = 1 minute (min.). 60 min. = 1 hour (hr.).... | |
 | Self-culture - 1895 - 710 pages
...day is not, as is commonly supposed, the time required by the earth to make one turn on its axis, but the interval between two successive passages of the sun across the meridian — that is to say, the time which elapses after the sun is seen exactly south at noon before it is... | |
 | Science - 1899 - 676 pages
...The hour angle is measured by the arc of the equator included between the two circles. As an apparent solar day is the Interval between two successive passages of the sun over the same meridian, the sun describes 360° in 24 apparent hours, or IS0 In 1 apparent hour. The... | |
 | John Thornton - Physical geography - 1899 - 460 pages
...parts of England, and this is the time as shown by a clock moving through 24 solar hours in the average interval between two successive passages of the sun across the meridian of Greenwich, the moment of passage being Greenwich mean noon. Such a clock does not always indicate noon... | |
 | Robert Stawell Ball - Astronomy - 1900 - 230 pages
...life for we must regulate our hours by the Sun. It might therefore seem natural to take as our day the interval between two successive passages of the Sun across the meridian. This interval is however not a constant one, but if we take a very great number of such intervals between... | |
 | A. F. Walden - 1901 - 300 pages
...[Note. — "Sidereal" is derived from the Greek word for star.] On the other hand, it may stand for the interval between two successive passages of the sun across the meridian of a place. This is a solar day. Now, so far as we are able to tell, the duration of a sidereal day is... | |
 | John William Hopkins, Patrick Healy Underwood - Arithmetic - 1903 - 560 pages
...all places between the Arctic and Antarctic circles. It represents the period of time that elapses between two successive passages of the sun across the meridian of any place. Another natural standard of time is the period from one new moon to the next new moon, called a lunar... | |
 | Frederick Converse Beach - Encyclopedias and dictionaries - 1904 - 1358 pages
...second being defined as the 86.4OOth part of a mean solar day, or the 86,4Ooth part of the average interval between two successive passages of the sun across the meridian of any given place. In the metric system the fundamental unit of length is the metre ; the metre being defined... | |
 | John William Hopkins - Arithmetic - 1907 - 376 pages
...unit of time. It is of the same duration at all places. It represents the period of time that elapses between two successive passages of the sun across the meridian of any place. The length of a year is 365 days, 5 hours, 48 minutes, 46 seconds. The common year has 365 days. The... | |
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A solar day is the interval between two successive passages of the sun across the meridian of any place. 
