A New Treatise on the Use of the Globes, Or, A Philosophical View of the Earth and Heavens ....

Samuel Whiting & Company, and Samuel Wood, printer, 1811 - 346 páginas

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Página 2 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Página 64 - In this case, it is obvious that the plane of the circle of illumination would be perpendicular to a line drawn from the centre of the sun to the centre of the earth...
Página 282 - Elevate the globe to so many degrees above the horizon as are equal to the latitude of the place...
Página 44 - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies on each other are always equal, and directed to contrary parts.
Página 11 - VERTICAI is that azimuth circle which passes through the east and west points of the horizon, and is always at right angles with the...
Página 228 - Elevate the pole so many degrees above the horizon as are equal to the latitude of the place, and screw the quadrant of altitude...
Página 5 - VV ater-bearer, i9 represented by the figure of a man pouring out water from an urn ; an emblem of the dreary and uncomfortable season of winter The last of the zodiacal constellations was Pisces, or a couple of fishes, tied back to back, representing the fishing season. The severity of the winter is over, the flocks do not afford sustenance, but the seas and rivers are open and abound with fish.
Página 91 - And quitting sense call imitating God; As Eastern priests in giddy circles run, And turn their heads to imitate the sun. Go, teach Eternal Wisdom how to rule — Then drop into thyself, and be a fool!
Página 130 - The time which this planet takes to revolve on its axis, and the inclination of its axis to the plane of its orbit, have been given by different astronomers ; but Dr. Herschel, from a long series of observations on this planet, published in the Philosophical Transactions...
Página 222 - Rectify the globe for the latitude of the place. Find the sun's place in the ecliptic, and bring it to the brass meridian ; the number of degrees on the meridian between the horizon and the sun's place is the altitude required.

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