The Sun: Ruler, Fire, Light, and Life of the Planetary System |
From inside the book
Results 1-5 of 47
Page xvi
... Evidence given by the polariscope Conclusion . 232 • 233 234 235 239 240 CHAPTER V. THE PROMINENCES AND THE CHROMOSPHERE . Discovery of the red prominences in 1733 Their re - discovery in 1842 . • · Faye and others ascribe them to ...
... Evidence given by the polariscope Conclusion . 232 • 233 234 235 239 240 CHAPTER V. THE PROMINENCES AND THE CHROMOSPHERE . Discovery of the red prominences in 1733 Their re - discovery in 1842 . • · Faye and others ascribe them to ...
Page xviii
... evidence corroboratory The radial beams considered Association between coronal , auroral , and cometic phenomena Further evidence deduced from the Zodiacal Light This radiance certainly not terrestrial . Summary of the evidence CHAPTER ...
... evidence corroboratory The radial beams considered Association between coronal , auroral , and cometic phenomena Further evidence deduced from the Zodiacal Light This radiance certainly not terrestrial . Summary of the evidence CHAPTER ...
Page 6
... evidence already obtained ; -but also with much that continues , and may perchance continue for many years , altogether perplexing . We have , in fine , to deal with a subject which is full of interest , but whose real grandeur and ...
... evidence already obtained ; -but also with much that continues , and may perchance continue for many years , altogether perplexing . We have , in fine , to deal with a subject which is full of interest , but whose real grandeur and ...
Page 40
... evidence of the scientific en- thusiasm of the men of the last century . The Royal Society presented a memorial to King George III . , requesting that a vessel might be fitted out at Govern- ment expense to convey skilful observers to ...
... evidence of the scientific en- thusiasm of the men of the last century . The Royal Society presented a memorial to King George III . , requesting that a vessel might be fitted out at Govern- ment expense to convey skilful observers to ...
Page 47
... evidence : - The results of the transit of 1761 are thus summed up in Dr. Bruhn's Life of Encke ( Johann Franz Encke , sein Leben und Wirken ) : - Short obtained a parallax of between 8 " -47 and 8 " 52 ; Pingré , 10 " ; Rumowski , 8 ...
... evidence : - The results of the transit of 1761 are thus summed up in Dr. Bruhn's Life of Encke ( Johann Franz Encke , sein Leben und Wirken ) : - Short obtained a parallax of between 8 " -47 and 8 " 52 ; Pingré , 10 " ; Rumowski , 8 ...
Contents
159 | |
208 | |
218 | |
221 | |
227 | |
242 | |
247 | |
310 | |
81 | |
92 | |
100 | |
106 | |
112 | |
120 | |
137 | |
146 | |
157 | |
368 | |
378 | |
386 | |
392 | |
401 | |
414 | |
443 | |
460 | |
480 | |
Other editions - View all
Common terms and phrases
angle aperture aphelion appearance astronomers battery of prisms body breadth bright lines centre chromosphere clouds coloured consider corona corresponding dark lines deduced determine diameter direction dispersion Earth eclipse effect error estimate fact faculę Fraunhofer greater Halley's method heat Herschel Hipparchus hydrogen Kirchhoff length less limb luminous Mars mass matter mean distance measure method miles per second minute Moon Moon's motion noticed observations orbit pass path peculiarity penumbra perihelion phenomena photosphere planets polariscope portion present prism problem prominences proportion rays recognised red end regarded regions remarkable rendered researches respecting rotation Secchi seems seen Sir William Herschel slit sodium solar light solar parallax solar physics solar prominences solar spectrum solar spots spectra spectroscopic analysis star stations Sun can control Sun-spot Sun's disc Sun's distance Sun's surface supposed telescope terrestrial tion transit transits of Venus trum vapours velocity Venus violet end visible
Popular passages
Page 405 - I have seen the wild stone-avalanches of the Alps, which smoke and thunder down the declivities with a vehemence almost sufficient to stun the observer. I have also seen snow-flakes descending so softly as not to hurt the fragile spangles of which they were composed ; yet to produce from aqueous vapour a quantity, which a child could carry, of that tender material, demands an exertion of energy competent to gather up the shattered blocks of the largest stone-avalanche I have ever seen, and pitch...
Page 183 - Hence he concludes that the sun has a very extensive atmosphere, which consists of elastic fluids that are more or less lucid and transparent ; and of which the lucid ones furnish us with light. This atmosphere, he...
Page 117 - I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour in front of the slit. I then saw the dark lines D change into bright ones.
Page 393 - The sun's rays are the ultimate source of almost every motion which takes place on the surface of the earth. By its heat are produced all winds, and those disturbances in the electric equilibrium of the atmosphere which give rise to the phenomena of lightning, and probably also to those of terrestrial magnetism and the aurora.
Page 413 - ... melt in air, — the flux of power is eternally the same. It rolls in music through the ages, and all terrestrial energy, — the manifestations of life as well as the display of phenomena, are but the modulations of its rhythm.
Page 193 - Herschel,'wouldcome,on this view of the subject, to be assimilated to those regions on the Earth's surface in which, for the moment, hurricanes and tornadoes prevail — the upper stratum being temporarily carried downwards, displacing by its impetus the two strata of luminous matter beneath...
Page 412 - And still, notwithstanding this enormous drain in the lapse of human history, we are unable to detect a diminution of his store. Measured by our largest terrestrial standards, such a reservoir of power is infinite ; but it is our privilege to rise above these standards, and to regard the sun himself as a speck in infinite extension — a mere drop in the universal sea. We analyse the space in which he is immersed, and which is the vehicle of his power.
Page 411 - Still, presented rightly to the mind, the discoveries and generalisations of modern science constitute a poem more sublime than has ever yet been addressed to the imagination. The natural philosopher of to-day may dwell amid conceptions which beggar those of Milton.
Page 412 - To Nature nothing can be added ; from Nature nothing can be taken away ; the sum of her energies is constant, and the utmost man can do in the pursuit of physical truth, or in the...
Page 204 - It was impossible, on first witnessing an appearance so similar to a sudden conflagration, not to expect a considerable result in the way of alteration of the details of the group in which it occurred; and I was certainly surprised, on referring to the sketch which I had carefully and satisfactorily (and I may add fortunately) finished before the occurrence, at finding myself unable to recognize any change whatever as having taken place.