 | Horatio Gates Spafford - 1809 - 448 páginas
...and are commonly parallel to some great one. These are the two tropics, and the two polar circles. Every circle whether great or small, is supposed to be divided into 360 equal parts called degrees; und each degree into 60 equal pans called minutes ; each minute into 60 equal parts called .seconds.... | |
 | Jeremiah Day - 1815 - 172 páginas
...sides and the angles. For the purpose of measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each minute into 60 second?. each second into 60 thirds, &c. marked with... | |
 | Jeremiah Day - 1815 - 388 páginas
...sides and the angles. For the purpose of measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each mintite into 60 seconds? each second into 60 thirds, fkc. marked... | |
 | James Smith - 1815 - 684 páginas
...side of the ecliptic all round the heavens. It is divided into 12 equal parts, called signs; and as every circle, whether great or small, is supposed to be divided into 360 degrees, each sign of the zodiac contains 30 degrees. Each sign of the zodiac is distinguished by a... | |
 | Edward Bruce (bookseller.) - 1821 - 418 páginas
...passing through the centre. / 1. A less circle divides a globe into two unequal parts. Every circle, great or small, is supposed to be divided into 360 equal parts, called degrees; and every degree is subdivided into 60 minutes. Degrees are marked °, and minutes'. Thus,—4 deg.... | |
 | John Imison - 1822 - 488 páginas
...is a space comprehended between two radii and an arc, as BI K. (Fig. 19.) 38. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the... | |
 | Jeremiah Day - 1824 - 440 páginas
...sides and the angles. For the purpose of measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c. marked with... | |
 | John Nicholson (civil engineer.) - 1825 - 1008 páginas
...circle is a space comprehended between two nffi and an arc, as B1K (Fig. 19). 49. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degreet ; aw every degree into 60 parts, called minutes . and every minute into 60 seconds. To measure... | |
 | John Nicholson (Civil engineer) - 1830 - 240 páginas
...circle is a space comprehended between two radii and an arc, as BIK (Fig. 19). 49. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the... | |
 | G. Rubie - 1830 - 204 páginas
...two equal parts. A Small Circle is that which divides the Earth or Heavens into two unequal parts. Every Circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and each degree is subdivided into 60 equal parts, called minutes or miles; therefore, a Semicircle... | |
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Difference in longitude and time between different places. Every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees. Let the accompanying diagram represent the great circle of the earth, called the equator,... 
