Mathematical GeographyAmerican book Company, 1907 - 336 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude analemma angle aphelion apparent astronomical atmosphere attraction average axis calendar called celestial equator celestial pole celestial sphere central centrifugal force circle of illumination clock date line December degrees diameter direction distance earth earth's orbit east eastward ecliptic ellipse farther fast geoid globe gnomonic projection gravity Greenwich half heat hemisphere horizon inches June 21 latitude length longitude lunar March 21 mean solar measure meridian circle miles minutes months moon moon's motion nearly night noon north pole North star northern o'clock oblateness obliquely Observatory observed ocean opposite parallels passing pendulum perihelion plane portion projection reason reckoned refraction revolution revolve rising rotation September shadow sidereal day slow solar day solstice spheroid standard time meridian summer sun's sunrise surface swing telegraph tides tion tropics twelve twenty-four hours twilight United varies vernal equinox vertical ray watch westward zodiac zone
Δημοφιλή αποσπάσματα
Σελίδα 20 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre.
Σελίδα 189 - The noise of this terrible flood is heard five or six miles, and increases as it approaches. Presently you see a liquid promontory twelve or fifteen feet high, followed by another, and another, and sometimes by a fourth. These watery mountains spread across the whole channel, and advance with a prodigious rapidity, rending and crushing every thing in their way.
Σελίδα 230 - Territory," and which provided that said territory should be divided into "townships of six miles square, by lines running due north and south, and others crossing them at right angles
Σελίδα 135 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Σελίδα 252 - They shall speak of the glory of thy kingdom, and talk of thy power; To make known to the sons of men his mighty acts, and the glorious majesty of his kingdom.
Σελίδα 278 - In conclusion, since the motion attributed to the earth, which I, as a pious and Catholic person, consider most false, and not to exist, accommodates itself so well to explain so many and such different phenomena, I shall not feel sure that, false as it is, it may not just as deludingly correspond with the phenomena of comets.
Σελίδα 315 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center. The curve which bounds the circle is called the circumference Any portion of the circumference is called an arc.
Σελίδα 77 - Dublin time, or to the mean astronomical time in each locality, and section 1 enacts that, whenever any expression of time occurs in any Act of Parliament, deed, or other legal instrument, the time referred shall, unless it is otherwise specifically stated, be held in the case of Great Britain to be Greenwich mean time, and in the case of Ireland, Dublin mean time. By section 2, the short title of this Act is " The Statutes (Definition of Time) Act, 1880.
Σελίδα 189 - Presently you see a liquid promontory 12 or 15 feet high, followed by another, and another, and sometimes by a fourth. These watery mountains spread across the whole channel, and advance with a prodigious rapidity, rending and crushing everything in their way. Immense trees are sometimes uprooted by it, and sometimes whole tracts of land are swept away.
Σελίδα 37 - If it were possible to move entire countries from one part of the globe to another, you could take the whole United States of America, from Maine to California and from Lake Superior to the Gulf of Mexico, and set it down in the middle of Siberia without touching anywhere the boundaries of the latter territory. You could then take Alaska and all the states of Europe, with...