 | Electrical engineering - 1906 - 680 pages
...latitude, CD departure, and DOC the course. Nautical Miles, or Knots. A great circle of the earth is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. Each minute is 6,080 feet (nearly") in length, or one nautical mile, the statute mile being only 5,280... | |
 | American School (Chicago, Ill.) - Engineering - 1906 - 550 pages
...latitude, CD departure, and DOC the course. Nautical Miles, or Knots. A great circle of the earth is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. Each minute is 6.080 feet (nearly) in length, or one nautical mile, the statute mile being only 5,280... | |
 | Walter George Stephan - Drawing instruments - 1908 - 130 pages
...For FIG. 23. — Semicircular protractor. scientific purposes the circle has been divided into 300 degrees, each degree into 60 minutes and each minute into 60 seconds. For laying off these degrees and fractions thereof directly on to paper, the protractor has been made.... | |
 | Herbert Spencer - Philosophy - 1910 - 282 pages
...Some of his questions might run thus: — What do you propose to do with the circle? At present it is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. I suppose you would divide it into 100 degrees, each degree into 100 minutes, and each of these into... | |
 | Fletcher Durell - Plane trigonometry - 1910 - 348 pages
...TRIGONOMETRICAL TABLES 127. History of Methods of Measuring Angles. The division of the circumference of a circle into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds, is due to the Babylonians. This system of angular measurement was transmitted from the Babylonians... | |
 | A. Herring-Shaw - 1910 - 288 pages
...NEM equals the angle HIK. Problem 5. — To construct an angle containing a given number of degrees. The circumference of a circle is supposed to be divided into 360 equal parts called " Degrees." The radius of a circle may be set off exactly six times round the circumference... | |
 | Charles H. Gleason - Arithmetic - 1910 - 536 pages
...circumference of every circle, large or small, is supposed to be divided into 360 equal parts, called degrees (°); each degree into 60 minutes ('); and each minute into 60 seconds ("). Thus: the circumference of the circle ABCD = 360°. A half of the circumference AC = 180°. A... | |
 | Fletcher Durell - Logarithms - 1911 - 336 pages
...TRIGONOMETRICAL TABLES 127. History of Methods of Measuring Angles. The division of the circumference of a circle into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds, is due to the Babylonians. This system of angular measurement was transmitted from the Babylonians... | |
 | Fletcher Durell - 1911 - 396 pages
...TRIGONOMETRICAL TABLES 127. History of Methods of Measuring Angles- The division of the circumference of a circle into 360 degrees, each degree into 60 minutes, and each minute into 60 sec/ onds, is due to the Babylonians. This system of angular measurement was transmitted from the Babylonians... | |
 | Theodore Lucas, Frank Duncan Graham, Nehemiah Hawkins - Marine engineering - 1918 - 940 pages
...-fJj-. See page 600 for tables and further explanations relating to .7854 and 3.1416. PARTS OF A CIRCLE. The circumference of a circle is supposed to be divided into 360 degrees or divisions, and as the total angularity about the center is equal to four right angles, each right... | |
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The circumference of a 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" is read... 
