 | Michael Kurland, Richard A. Lupoff - 1999 - 406 pages
...was used in some primitive calendars (until calendars became more accurate). We still divide a circle into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. The number 360 is wonderful because it is evenly divisible by so many smaller numbers. You can divide... | |
 | Patrick Moore - 2000 - 226 pages
...separation between the components of a double star is given in seconds or minutes of arc. A full circle is divided into 360 degrees, each degree into 60 minutes and each minute into 60 seconds, so that one second of arc is a very small angle indeed. It is worth remembering that the distance between... | |
 | Clair Russell Ossian - 2003 - 388 pages
...system based on twelves, not tens. This system is directly responsible for the division of circles into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds of arc (Erwin Raisz, 1948. General Cartography. McGraw-Hill, pg. 5). Figure 5-4. Babylonian Map. Early... | |
 | Department of the Army - 2004 - 192 pages
...360 w Figure 4-1. Prime meridian and equator. PARALLELS MERIDIANS f* A/ Figure 4-2. Reference lines. degrees each degree into 60 minutes, and each minute into 60 seconds. The degree is symbolized by °, the minute by ', and the second by ". Starting with 0° at the equator,... | |
 | Stephen Skinner - 2006 - 172 pages
...flexible in handling fractions than the base 10 system we use today. The Babylonians divided the circle into 360 degrees, each degree into 60 minutes and each minute into 60 seconds. This means that they could achieve a precision to 1 part in 1.3 million (as 360 x 60 x 60 = 1,296,000).... | |
 | Don Lichtenberg - 2007 - 328 pages
...lunar months, the Babylonians included a leap month every few years. The Babylonians divided the circle into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. We still use these units of angular measurement, but we also use others. In Figure 1.1 we show a cirlce... | |
 | Milo Burdette Hillegas, Thomas Henry Briggs - 1927 - 722 pages
...and of distance east and west of a selected or prime meridian. The whole circumference of a circle is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. It follows, of course, that the length of a degree, minute, or second will always depend upon the size... | |
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The circumference of every circle is supposed to' be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters °, ', ". Thus 23° 14' 35"... 
