 | Joseph Bateman - Excise tax - 1852 - 376 pages
...of thoughts ; the year bcing divided into 305 days for common years, and 366 days for leap years ; the day into 24 hours, the hour into 60 minutes, and the minute into 60 seconds. For the purpose of saving time in ealeulations, these various matters ore reduced to tables, the most... | |
 | Science - 1873 - 636 pages
...lunar time supposed to be divided as ours (that is, the day into 24 equal parts, to be called lunar hours, the hour into 60 minutes, and the minute into 60 seconds). These two relations are sufficient for the ready conversion of terrestrial into lunar time, and vice... | |
 | James Samuelson, William Crookes - Science - 1873 - 606 pages
...lunar time supposed to be divided as ours (that is, the day into 24 equal parts, to be called lunar hours, the hour into 60 minutes, and the minute into 60 seconds). These two relations are sufficient for the ready conversion of terrestrial into lunar time, and vice... | |
 | Robert Wallace Stewart - Light - 1910 - 434 pages
...a definite interval of time known as the mean solar day. B The mean solar day is divided into g' '' 24 hours, the hour into 60 minutes, and the minute into 60 seconds. • A mean solar second is, therefore, the ^-.Vrnr Part of * mean solar day. This unit, the mean solar... | |
 | Silas Ellsworth Coleman - Physics - 1911 - 656 pages
...variable. The average length of the solar day for the entire year, or the "mean solar day," is divided into 24 hours, the hour into 60 minutes, and the minute into 60 seconds. These are the time intervals indicated by clocks and watches. The second is the unit of time regularly... | |
 | A.A. Hattangadi - Mathematical recreations - 2002 - 262 pages
...determined by the rotation of the earth on its own axis in relation to the Sun. The day is divided into 24 hours, the hour into 60 minutes and the minute into 60 seconds. There is a difference between the time for this solar day and the time taken by the earth for one complete... | |
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... hours, the hour into 60 minutes, and the minute into 60 seconds). These two relations are sufficient for the ready conversion of terrestrial into lunar time, and vice versa. 