Astronomical Doctrines Presented in New AspectsTheo. Kroh & Sons, 1897 - 45 oldal |
Más kiadások - Összes megtekintése
Astronomical Doctrines Presented in New Aspects (Classic Reprint) Phillip Augustus Albrecht Nincs elérhető előnézet - 2018 |
Astronomical Doctrines Presented in New Aspects Phillip Augustus Albrecht Nincs elérhető előnézet - 2009 |
Astronomical Doctrines Presented in New Aspects Phillip Augustus Albrecht Nincs elérhető előnézet - 2016 |
Gyakori szavak és kifejezések
90 degrees angle aphelion Arctic astronomers attraction Bessel bodies cause celestial celestial equator circle coast comet constellation continually Cosmos diagram discovered discovery earth earth's axis earth's orbit East to West ecliptic encircling Equatorial current Equinoxes existing explain fact figure flood Foundland greater planets Gulf of Mexico Gulf Stream heavens high water Hipparchus Humboldt says inclined Jupiter Kepler latitudes Littrow longitude Mars Mercury milky moon's motion in space Neptune North Pole northern hemisphere obliquity observations ocean onward flow orbital motion perihelia perihelion phenomena Polar position Precession present Procyon Prof remarkable retrograde retrograde motion revolution revolve rotation current satellites Saturn side Simon Newcomb Sir John Herschel Sirius SOLAR APEX Solar system South pole stars summer solstice sun advanced sun's equator sun's motion sun's orbit sun's path sun's proper motion theory tidal waves tide tion tropics Uranus Vernal equinox West to East winter solstice
Népszerű szakaszok
40. oldal - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.
6. oldal - Kepler's method of investigating truth, that " the influence of imagination as an instrument of research has been much overlooked by those who have ventured to give laws to philosophy. This faculty is of greatest value in physical inquiries; if we use it as a guide and confide in its indications it will infallibly deceive us; but if we employ it as an auxiliary, it will afford us the most invaluable aid
7. oldal - The squares of the periods of the planets, are proportional to the cubes of their mean distances from the sun; ie, ti :t 3 *:: a* : a/. This is the so-called
5. oldal - About the year 1819, Captain JC BTmmcs, an officer of the regular Army of the United States, advanced a theory, to the propagation of which he devoted the remainder of his life, that the earth was hollow, was inhabited within, and had an opening at the pole, which became known throughout the country as
3. oldal - Newton left undone, however, his successors have accomplished ; and, at this day, there is not a single perturbation, great or small, which observation has ever detected, which has not been traced up to its origin in the mutual gravitation of the parts of our system, and been minutely accounted for, in its numerical amount and value, by strict calculation on Newton's principles.
5. oldal - Hall hud got several degrees farther north he would have found evidence of the truth of the theory. '• Captain Hall startled us at the reception given to him and his officers by this Society, before the departure of the Polaris, by announcing publicly to us his belief in the existence of this hole, and of his determination to go in pursuit of it ; a belief which, being an uneducated man, and but little acquainted with the geography of the Arctic, was firmly fixed in his mind.
26. oldal - ... but the circumstances we have just mentioned tended to create a strong belief that it was something beyond a mere accidental coincidence, and bore reference to the essential structure of the planetary system. It was even conjectured that the ultra-zodiacal planets are fragments of some greater planet which formerly circulated in that interval, but which has been blown to atoms by an explosion...
11. oldal - ... unparticipated by the rest, must be a slow average apparent tendency of all the stars to the vanishing point of lines parallel to that direction, and to the region which he is leaving, however greatly individual stars might differ from such average by reason of their own peculiar proper motion. This is the necessary effect of perspective...
5. oldal - His son, now an old man, has revived it, and is advocating it as his father did by delivering public lectures. The father's theory was that this hole, or opening, in the Arctic was about...
9. oldal - ... equator and vertical elevation above the sea. It is further necessary to investigate the laws which regulate the differences of temperature and climate, and the meteorological processes of the atmosphere, before we can hope to explain the involved causes of vegetable distribution; and it is thus that the observer who earnestly pursues the path of knowledge is led from one class of phenomena to another, by means of the mutual dependence and connection existing between them.