Elementary Physiography: An Introduction to the Study of NatureLongmans, Green & Company, 1899 - 427 σελίδες |
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Σελίδα 23
... circle of rotation and the higher the speed of rotation . Now , the effect of this rotation is to produce a tendency in a body on the earth's surface to fly off at a tangent , and thus to counteract some of the earth's gravitative force.
... circle of rotation and the higher the speed of rotation . Now , the effect of this rotation is to produce a tendency in a body on the earth's surface to fly off at a tangent , and thus to counteract some of the earth's gravitative force.
Σελίδα 34
... produced by the rowing and the velocity of the stream . Both velocities are in the same direction , and the velocity of the boat is the sum of the two velocities . Rowed up stream the two velocities are in the opposite direction , and ...
... produced by the rowing and the velocity of the stream . Both velocities are in the same direction , and the velocity of the boat is the sum of the two velocities . Rowed up stream the two velocities are in the opposite direction , and ...
Σελίδα 36
... produced by Gravity . - Experiment shows that a heavy body , when allowed to fall freely , falls vertically- In one second through 16 feet ; In two seconds In three وو In four 99 " " 64 feet , i.e. through 16 × 22 feet ; " " 144 " " 99 ...
... produced by Gravity . - Experiment shows that a heavy body , when allowed to fall freely , falls vertically- In one second through 16 feet ; In two seconds In three وو In four 99 " " 64 feet , i.e. through 16 × 22 feet ; " " 144 " " 99 ...
Σελίδα 37
... produced in a body . A description and account of the property of inertia is con- tained in the first of the three laws of motion as given by Newton . The first law of motion states : Every body con- tinues in its state of rest or of ...
... produced in a body . A description and account of the property of inertia is con- tained in the first of the three laws of motion as given by Newton . The first law of motion states : Every body con- tinues in its state of rest or of ...
Σελίδα 39
... produced by the causes called forces . It must be noticed that a force does not always produce motion , for if counteracted by another force it will only " tend " to change a body's state of rest or motion . Forces that can set bodies ...
... produced by the causes called forces . It must be noticed that a force does not always produce motion , for if counteracted by another force it will only " tend " to change a body's state of rest or motion . Forces that can set bodies ...
Συχνά εμφανιζόμενοι όροι και φράσεις
acid altitude angle Antarctic Antarctic Circle Arctic Arctic Circle Atlantic atmosphere axis barometer body calcium carbonate called carbon celestial equator celestial sphere centre circle coast currents declination delta density deposits depth distance earth earth's orbit east ecliptic equal equator equatorial equinox evaporation Experiment fall fathoms feet flask force glacier globe heat Hence horizon inches increase iron land latitude lava length liquid magnet mass mercury meridian miles moon motion mountain move needle night north pole Northern Hemisphere OCEAN oxide oxygen parallel particles passing plane position pressure quantity rain rays regions right ascension rise river rocks rotation round side sidereal day silica solar day specific gravity spring stars stream substance sun's surface temperature thermometer Tropic Tropic of Cancer Tropic of Capricorn tube valley vapour velocity vernal equinox vertical volcano weight winds winter zenith
Δημοφιλή αποσπάσματα
Σελίδα 20 - Newton generalized the law of attraction into a statement that every particle of matter in the universe attracts every other particle with a force which varies directly as the product of their masses and inversely as the square of the distance between them; and he thence deduced the law of attraction for spherical shells of constant density.
Σελίδα 37 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Σελίδα 313 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another.
Σελίδα 415 - All the rivers run into the sea; yet the sea is not full; unto the place from whence the rivers come, thither they return again.
Σελίδα 356 - The Ram, the Bull, the heavenly Twins, And next the Crab the Lion shines, The Virgin and the Scales ; The Scorpion, Archer and He-goat, The Man that holds the watering-pot And Fish with glittering tails.
Σελίδα 317 - The zenith distance of a body is its angular distance from the zenith, measured on the vertical circle passing through the body from 0° to 90°. It is the complement of the altitude.
Σελίδα 258 - When there is not enough of clouds and wind to afford this degree of protection, dew begins to form, and by preventing the temperature of any leaf or flower from sinking below the dew-point, saves them all from destruction, unless, as when hoar-frost appears, the dew-point itself is below the freezing-point.