 | Andrew Mackay - 1809 - 412 pàgines
...celestial Equator or EQUINOCTIAL. The Equator as well as all other great circles of the sphere, is divided into 360 equal parts, called degrees ;* each degree is divided into 6O equal parts, called minutes; and the sexagesimal division is continued. The MERIDIAN of any place,... | |
 | Robert Gibson - 1811 - 580 pàgines
...celestial Equator or Equinoctial. The Equator, as well as all other great circles of the sphere, is divided into 360 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes i and the sexagesimal division is continued. NOTE. The ancients having no instruments... | |
 | Jedidiah Morse - 1814 - 378 pàgines
...celestial sphere, are supposed to be extended to the earth, and marked on its surface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided Into 60 minutes, and each minute into 60 seconds. The circles, supposed by geographers to be described on the... | |
 | Robert Gibson - 1814 - 558 pàgines
...celestial Equator or Equinoctial. The Equator, as well as all other great circles of the sphere, is divided into 360 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes ,• and the sexagesimal division is continued. NOTE. The ancients having no... | |
 | Jedidiah Morse - 1814 - 382 pàgines
...celeftial fphere, are fuppofed to be extended to the earth, and marked on its farface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutes, and each minute into (tofeconds. The circles fuppofed by geographers to be defcribed on the... | |
 | Jedidiah Morse - 1818 - 384 pàgines
...Celestial Sphere. 21 supposed to be extended to the earth, and marked on its surface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutet, and each minute into GO seconds. % If The circles, supposed by Geographers to be described... | |
 | Jedidiah Morse, Sidney Edwards Morse - 1826 - 350 pàgines
...into two unequal parts. The two tropics and the two polar circles are less circles. Every circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutes ; and each minute into 60 seconds. They are marked thus 32° 14' 26" ; that is, 32 degrees,... | |
 | Frederick Emerson - 1834 - 300 pàgines
...GEOGRAPHICAL MEASURE. The circumference of the globe — like every other circle — is divided in 360 equal parts, called degrees. Each degree is divided into 60 equal parts called miles, or minutes. Three miles are called a league. On the equator, 69^ statute miles... | |
 | B[enjamin] Franklin Callender - 1836 - 226 pàgines
...CHAPTER I. MENSURATION OF ANGLES AND TRIANGLES. SECTION I. Definitions and ProblemS. Every circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes ; each minute is divided into 60 equal parts, called seconds; seconds are divided... | |
 | John Lee Comstock - 1838 - 268 pàgines
...surface as those of summer. OF LATITUDE AND LONGITUDE. Definitions. All circles surrounding the earth are divided into 360 equal parts called degrees ; each degree is divided into 60 equal parts called minutes, and each minute into 60 parts called seconds. The signs by which these are indicated... | |
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Every circumference is regarded as being divided into 360 equal parts, called degrees. Each degree is divided into 60 equal parts, called minutes, and each minute into 60 seconds. These divisions are indicated by the marks ° ' ". Thus 28 degrees, 17... 
