Speculations: Solar Heat, Gravitation, and Sun Spots |
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absolutely action amount of heat arrested motion attraction balls carbon cause celestial bodies centre CHAPTER chemical chemical affinity chemical decomposition clouds cold condensation conservation contraction cooling cubic mile diffusion directions distance earth and sun electricity emanations equal equator ethereal ocean ethereal vibrations ethereal waves exactly exerted existence fact force of gravitation form of heat forms of energy gaseous gases heavens impelling the earth impinge incandescent inconceivable infinite intense heat intercepted Jupiter light and heat lines mass matter in motion mechanical force mechanical motion medium meteors molecules nature Newton non-ethereal matter opposite orbit P. G. Tait particles photosphere physical planets portion possible potential energy propagated propulsive push quantity R. A. Proctor radiation rays receive senders solar fires solar heat space square sun spots suppose surface temperature tension theory tion tricity turn to heat undulations universal ether vapors velocity waves of mechanical whole writer
Popular passages
Page 295 - 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.
Page 295 - It is inconceivable, that inanimate brute matter should, without the mediation of something else, which is not material, operate upon, and affect other matter without mutual contact; as it must do, if gravitation, in the sense of Epicurus, be essential and inherent in it.
Page 98 - For a' that, and a' that, Their dignities, and a' that, The pith o' sense, and pride o' worth, Are higher ranks than a' that. Then let us pray that come it may, As come it will for a' that — That sense and worth o'er a' the earth, May bear the gree, and a' that. For a' that, and a' that, It's coming yet, for a
Page 1 - Whence are thy beams, O sun! thy everlasting light? Thou comest forth, in thy awful beauty; the stars hide themselves in the sky; the moon, cold and pale, sinks in the western wave. But thou thyself movest alone: who can be a companion of thy course! The oaks of the mountains fall: the mountains themselves decay with years...
Page 61 - To him that hath shall be given ; and from him that hath not shall be taken away even that which he hath.
Page 234 - Themselves in orisons ! Thou material God ! And representative of the Unknown — Who chose thee for His shadow ! Thou chief star ! Centre of many stars ! which mak'st our earth Endurable, and temperest the hues And hearts of all who walk within thy rays ! Sire of the seasons...
Page 213 - Glide on in your beauty, ye youthful spheres, To weave the dance that measures the years ; Glide on, in the glory and gladness sent, To the farthest wall of the firmament, — The boundless visible smile of Him, To the veil of whose brow your lamps are dim.
Page 138 - I HEARD the trailing garments of the Night Sweep through her marble halls ! I saw her sable skirts all fringed with light From the celestial walls ! I felt her presence, by its spell of might, Stoop o'er me from above ; The calm majestic presence of the Night, As of the one I love. I heard the sounds of sorrow and delight, The manifold soft chimes, That fill the haunted chambers of the Night, Like some old poet's rhymes.
Page 297 - Assume two particles of matter, A and B, in free space, and a force in each or in both by which they gravitate towards each other, the force being unalterable for an unchanging distance, but varying inversely as the square of the distance when the latter varies.
Page 155 - It may therefore be supposed that a very large apparent amount of the force causing the phenomena of gravitation, may be the equivalent of a very small change in some unknown condition of the bodies, whose attraction is varying by change of distance. For my own part, many considerations urge my mind toward the idea of a cause of gravity, which is not resident in the particles of matter merely, but constantly in them, and all space.