Smith's Illustrated Astronomy: Designed for the Use of the Public Or Common Schools in the United States ...Nichols & Hall, 1868 - 79 σελίδες |
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Σελίδα 4
... Rays , Equinoctial and Solstitial Points , · 20 s and Meteors , 22 View of the Earth's Orbit , as seen from the nearest fixed Star , Terrestrial and Celestial Globes , and Milky - way , Asteroids and Jupiter , · 24 Telescopic Views ...
... Rays , Equinoctial and Solstitial Points , · 20 s and Meteors , 22 View of the Earth's Orbit , as seen from the nearest fixed Star , Terrestrial and Celestial Globes , and Milky - way , Asteroids and Jupiter , · 24 Telescopic Views ...
Σελίδα 13
... rays , when collected into a focus , is very great . 2d , its rays pass through glass with the greatest facility , ( a property belonging to arti- ficial heat in direct proportion to its intensity . ) 3d , the brightness of the sun is ...
... rays , when collected into a focus , is very great . 2d , its rays pass through glass with the greatest facility , ( a property belonging to arti- ficial heat in direct proportion to its intensity . ) 3d , the brightness of the sun is ...
Σελίδα 20
... RAYS IN THE NORTHERN HEMISPHERE WINTER RAYS IN THE NORTHERN HEMISPHERE . WINTER RAYS INTHE SOUTHERN HEMISPHERE MARCH 217 BOTH POLES ARE IN THE RAYS OF THE SUN SUMMER RAYS IN THE SOUTHERN HEMISPHERE SEPT 23 : BOTH POLES ARE IN THE RAYS ...
... RAYS IN THE NORTHERN HEMISPHERE WINTER RAYS IN THE NORTHERN HEMISPHERE . WINTER RAYS INTHE SOUTHERN HEMISPHERE MARCH 217 BOTH POLES ARE IN THE RAYS OF THE SUN SUMMER RAYS IN THE SOUTHERN HEMISPHERE SEPT 23 : BOTH POLES ARE IN THE RAYS ...
Σελίδα 21
... rays of the sun strike it so directly as to cause many rays to fall on a given surface . Q. When the north pole leans from the sun , why is winter pro- duced in the northern hemisphere ? A. Because the rays of the sun strike it so ...
... rays of the sun strike it so directly as to cause many rays to fall on a given surface . Q. When the north pole leans from the sun , why is winter pro- duced in the northern hemisphere ? A. Because the rays of the sun strike it so ...
Σελίδα 29
... rays of the sun always fall upon the sides of the rings very obliquely , as the sun is never seen more than 30 degrees above the horizon of the rings , while at other times the edge of the rings only is presented to the sun . ( See ...
... rays of the sun always fall upon the sides of the rings very obliquely , as the sun is never seen more than 30 degrees above the horizon of the rings , while at other times the edge of the rings only is presented to the sun . ( See ...
Άλλες εκδόσεις - Προβολή όλων
Smith's Illustrated Astronomy: Designed for the Use of the Public Or Common ... Asa Smith Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Smith's Illustrated Astronomy: Designed for the Use of the Public Or Common ... Asa Smith Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude angle aphelion ascending node Asteroids atmosphere brass meridian called CANIS MAJOR CANIS MINOR Capricornus cause centre comets constellation cube degrees Diagram diameter distance EARTH ENTERS earth's orbit earth's shadow equal equator equinoctial equinox fixed stars full moon Gemini gravity greater heavenly body heavens Herschel horizon ILLUSTRATED ASTRONOMY inferior conjunction inferior planets July Jupiter latitude leap-years LESSON Libra light and heat longitude magnitude Mars MEAN PLACE Mercury and Venus meridian meteors miles MOON PASSES moon's orbit MOON'S SHADOW PASSES motion move nebula Neptune night north pole North Star observed ORION parallax perihelion point of Aries polar principal star rays retrograde motion revolution revolve right ascension ring rising round Saturn seasons seen solar system south pole sphere spots stone SUN ENTERS sun's superior conjunction supposed surface Taurus telescope tide total eclipse TRUE PLACE Uranus velocity visible west to east zenith zodiac Zodiacal Light
Δημοφιλή αποσπάσματα
Σελίδα 62 - 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.
Σελίδα 11 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Σελίδα 45 - Astrcea, the goddess of justice, who lived upon the earth during the golden age : but being offended at the wickedness and impiety of mankind during the brazen and iron ages of the world, she returned to heaven, and was placed among the constellations of the zodiac, with a pair of scales (Libra) in one hand and a sword in the other.
Σελίδα 13 - And even should an accumulation of disturbances, of which the absence of inequalities lessens the probability, bring the rings together, the velocities at the point of contact will be very nearly equal, and the two will coalesce without disastrous consequences." " If, in its normal condition, the ring has but one division, as is commonly seen, under peculiar circumstances it might be anticipated that the preservation of their equilibrium would require a separation in some regions of either the inner...
Σελίδα 61 - Find the longitude of the given place on the equator, bring it to that part of the brass meridian which is numbered from the equator towards the poles ; and then, under the given latitude, on the brass meridian, you will find the place required.
Σελίδα 61 - ... latitude and longitude of a star* RULE. Place the upper end of the quadrant of altitude on the north or south pole of the ecliptic, according as the star is on the north or south side of the ecliptic, and move the other end till the...
Σελίδα 49 - Mercury gave to Orpheus, and upon which he played with such a masterly hand, that even the most rapid rivers ceased to flow, the wild beasts of the forest forgot their wildness, and the mountains came to listen to his song. Of...
Σελίδα 61 - Problem 12 : ihen elevate the pole as many degrees above the horizon as are equal to the latitude of that place, and bring it to the brass meridian ; so will it then be the zenith or centre of the horizon.
Σελίδα 60 - Sun's place for the given day to the brass meridian; mark its declination) bring the given place to the brass meridian, and set the index to the...
Σελίδα 61 - Look for the given day in the circle of months on the horizon, against which, in the circle of signs, are the sign and degree in which the sun is for. that day. Find the same sign and degree in the ecliptic on the surface of the globe ; bring the degree of the ecliptic, thus found, to that part of the brass meridian which is numbered from the equator towards the poles ; its distance from the equator reckoned on the brass meridian, is the sun's declination.