 | Thomas Keith - 1811 - 388 páginas
...correspondent to the hours of the day ; and these are again subdivided into halves and quarters. 19. The HORIZON is a great circle which separates the...half of the heavens from the invisible. This horizon, when applied to the earth, is distinguished by the sensible and rational horizon. 2O. THE SENSIBLE,... | |
 | Thomas Keith - 1819 - 380 páginas
...correspondent to the hours of the day ; and these are again subdivided into halves and quarters. 19. The HORIZON is a great circle which separates the...half of the heavens from the invisible. This horizon, when applied to the earth, ia distinguished by the sensible and rational horizon. 21. The RATIONAL,... | |
 | Thomas Keith - 1826 - 360 páginas
...round the axis of the globe, and the brass meridian, in this case, answers the purpose of an index. 20. The HORIZON is a great circle which separates the visible half of the heavens from the invisible ; the earth being considered as a point in the centre of the sphere of the fixed stars. Horizon, when... | |
 | James Ryan - 1827 - 408 páginas
...show ? CHAPTER IV. Of the wooden horizon, and other appendages to the terrestrial globe. , • o 1 . The horizon is a great circle which separates the visible half of tne heavens from the invisible ; the earth being considered as a point in the centre of the sphere... | |
 | First steps - 1828 - 456 páginas
...sun's place, for it must be six signs distant. WILLIAM. What is the horizon ? MOTHER. That imaginary circle which separates the visible half of the heavens from the invisible, is called the horizon. The height of the sun, or of a star, above the Horizon, reckoning from the horizon... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831 - 650 páginas
...to the hours of the day ; and these are again subdivided into halves and quarters. The horizon (qv) is a great circle, which separates the visible half of the heavens from the invisible ; the earth being considered as a point in the centre of the sphere of the fixed stars. Horizon, when... | |
 | Joseph Guy - 1832 - 412 páginas
...round the axis of the globe, and the brass meridian, in this case, answers the purpose of an index. 20. The HORIZON is a great circle which separates the visible half of the heavens from the invisible ; the earth being considered as a point in the centre of the sphere of the fixed stars. Horizon, when... | |
 | Jesse Olney - 1835 - 298 páginas
...small circle of brass, with an index or pointer, fixed to the north pole. Q. What is the Horizon? A. It is a great circle, which separates the visible half of the heavens from the invisible. Q. How is the horizon represented on the Artificial Globe? A. By the wooden circular frame on which... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 630 páginas
...to the hours of the day ; and these are again subdivided into halves and quarters. The horizon (qv) is a great circle, which separates the visible half of the heavens from the invisible ; the earth being considered as a point m the centre of the sphere of the fixed stars. Horizon, when... | |
 | Jesse Olney - 1838 - 300 páginas
...another. The hour circle is a small circle of brass, with an index or pointer fixed to the north pole. The horizon Is a great circle which separates the visible half of the heavens from the invisible. The horizon is represented on tbe artificial globe by tbe wooden circular frame on which the globe... | |
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The HORIZON is a great circle which separates the visible half of the heavens from the invisible ; the earth being considered as a point in the centre of the sphere of the fixed stars. 
