ما يقوله الناس - كتابة مراجعة
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absolute velocity according actual angular angular velocity appears aurora cause centrifugal force Cleveland Abbe comets connective atmosphere connective substance connective theory connective variations connex corona cosmical crust density diminish direction distance dry season E's attraction Earth Earth's surface eclipses effect equal equator equatorial evidence excess explanation fact flocculus given point greater heavenly bodies increase indicated Jupiter Jupiter's latter lunar M's velocity magnetic mass maxima maxima and minima maximum meteorites miles molecular molecules Moon Moon's nature nearly nebulae nebular hypothesis nexions observed opposite orbital forces orbital motions original owing particles period perturbing forces phenomena planet planetary connexions portion precipitation present primary connexion probably Prof R. A. Proctor reason recession respect ring satellites secondary connexions side sidereal Sidereal System solar connexion solar spheroid Solar System sphere spots stars Sun's surface sunspot supposed synodic period theory of gravitation tidal tide tion vapor zodiacal light
الصفحة 157 - Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
الصفحة 36 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
الصفحة 236 - That gravity should be innate, inherent and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it.
الصفحة 45 - Men of science do not pledge themselves to creeds ; they are bound by articles of no sort ; there is not a single belief that it is not a bounden duty with them to hold with a light hand and to part with it, cheerfully, the moment it is really proved to be contrary to any fact, great or small.
الصفحة 157 - The areas which revolving bodies describe by radii drawn to an immovable centre of force do lie in the same immovable planes, and are proportional to the times in which they are described.
الصفحة 392 - ... is a vast aggregate of molecular mechanisms, performing complicated movements of immense rapidity and sensitively adjusting themselves to every change in the surrounding world.
الصفحة 207 - But in course of time some process akin to cooling, probably internal, reduces the temperature of the cosmic protyle to a point at which the first step in granulation takes place; matter as we know it comes into existence, and atoms are formed.
الصفحة 49 - Manifestly, as the most general cognition at which we arrive cannot be reduced to a more general one, it cannot be understood. Of necessity, therefore, explanation must eventually bring us down to the inexplicable. The deepest truth which we can get at, must be unaccountable. Comprehension must become something other than comprehension, before the ultimate fact can be comprehended.
الصفحة 372 - Way, and clustering groups sufficiently insulated and condensed to come under the designation of irregular, and in some cases pretty rich clusters. But besides those, there are also nebulae in abundance, both regular and irregular; globular clusters in every state of condensation; and objects of a nebulous character quite peculiar, and which have no analogue in any other region of the heavens.
الصفحة 134 - Every hypothesis is bound to explain, or, at any rate, not be inconsistent with, the whole of the facts whicn it professes to account for ; and if there is a single one of these facts which can be shown to be inconsistent with (I do not merely mean inexplicable by, but contrary to,) the hypothesis, the hypothesis falls to the ground, — it is worth nothing.