On the Connection of the Physical SciencesHarper & Brothers, 1846 - 460 pages |
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Page 154
... refrangible and the violet the most . But when he reunited these seven rays by means of a lens , the compound beam ... refrangibility ever belongs , and to the same refrangibility the same color . Since the discovery of absorbent media ...
... refrangible and the violet the most . But when he reunited these seven rays by means of a lens , the compound beam ... refrangibility ever belongs , and to the same refrangibility the same color . Since the discovery of absorbent media ...
Page 194
... refrangible part of the spectrum , and that the red rays have an opposite quality , that of restoring the blackened salt of silver to its original purity , from which he inferred that the most refrangible extremity of the spectrum has ...
... refrangible part of the spectrum , and that the red rays have an opposite quality , that of restoring the blackened salt of silver to its original purity , from which he inferred that the most refrangible extremity of the spectrum has ...
Page 198
... refrangible rays , but reaches much beyond the extreme red . On paper prepared with formobenzoate of silver the chemical spectrum is cut off at the orange rays , with phosphate of silver in the yellow , and with chloride of gold it ...
... refrangible rays , but reaches much beyond the extreme red . On paper prepared with formobenzoate of silver the chemical spectrum is cut off at the orange rays , with phosphate of silver in the yellow , and with chloride of gold it ...
Page 199
... refrangible blue . Mr. Hunt found on a paper prepared with fluoride of silver that a yellow line was impressed on the space occupied by the yellow rays , a green band on the space under the green rays , an intense blue throughout the ...
... refrangible blue . Mr. Hunt found on a paper prepared with fluoride of silver that a yellow line was impressed on the space occupied by the yellow rays , a green band on the space under the green rays , an intense blue throughout the ...
Page 201
... refrangible rays and considerably beyond them , thus inducing a negative action in the most refrangible part of the spectrum . In certain circumstances the red rays , instead of re- storing darkened photographic paper to its original ...
... refrangible rays and considerably beyond them , thus inducing a negative action in the most refrangible part of the spectrum . In certain circumstances the red rays , instead of re- storing darkened photographic paper to its original ...
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Common terms and phrases
61 Cygni action appears atmosphere attraction bodies caloric cause centrifugal force changes chemical color comet consequently crystal degree density diameter diminishes direction distance disturbing earth ecliptic effect electric currents electricity equal equator ether extremely fluid force galvanometer glass globe gravitation greater heat increase intensity Jupiter latitude length less light liquid longitude luminous lunar magnetic major axis mass mean meridian metal miles moon motion move nearly nodal lines nodes NOTE nutation observations optic axis orbit oscillations parallax particles passing perigee perihelion period phenomena planet plate polarized poles position produce quantity rays reflected refraction refrangible retrograde motion revolution revolving right angles rings rotation satellites secular Sir John Herschel Sir William Herschel solar spectrum sound space square stars substances sun's surface temperature terrestrial tion tourmaline transmitted tricity undulations Uranus variation varies velocity vibrations Voltaic waves wire
Popular passages
Page 457 - It is not only remarkably well written, but has a completeness about it we have never found before in any life of Mozart.— Louisville Journal. There is such a charm in this narrative, that the lovers of good biography can not hear of it too soon. We can not conceive a more fascinating story of genius. To a style which would alone have sufficed to the production of an interesting and striking narrative, Mr. Holmes unites a depth 01 knowledge and musical appreciation very rare and remarkable.
Page 29 - ... that the mean longitude of the first satellite, minus three times that of the second, plus twice that of the third, is always equal to two right angles.
Page 22 - That day, as other solemn days, they spent In song and dance about the sacred hill ; Mystical dance, which yonder starry sphere Of planets, and of fix'd, in all her wheels Resembles nearest, mazes intricate, Eccentric, intervolved, yet regular Then most, when most irregular they seem ; And in their motions harmony divine So smooths her charming tones, that God's own ear Listens delighted.
Page 364 - Post 8vo. Price 9s. cloth. Results of Astronomical Observations Made at the Cape of Good Hope. By Sir John Herschel. 4to, with Plates. Price 4/.
Page 359 - Jupiter ; it then gradually diminished in splendor, and having exhibited all the variety of tints that indicate the changes of combustion, vanished sixteen months after its discovery, without altering its position. It is impossible to imagine any thing more tremendous than a conflagration that could be visible at such a distance.
Page 376 - ... computed, that if a stone were projected from the moon in a vertical line, with an initial velocity of 10,992 feet in a second, — [more than four times the velocity of a ball when first discharged from a cannon, — instead of falling back to the moon by the attraction of gravity, it would come within the sphere of the earth's attraction, and revolve about it like a satellite. These bodies, impelled either by the direction of the primitive impulse, or by the disturbing action of the sun, might...
Page 292 - The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results ; but the number, position, and colours of the lines vary in each case. The appearances are so different that, by this mode of examination, the metals may be readily distinguished from each other.
Page 291 - The spectrum of the electro-magnetic spark taken from mercury consists of seven definite rays only, separated by dark intervals from each other ; these visible rays' are two orange lines close together, a bright green line, two bluish green lines near each other, a very bright purple line, and, lastly, a violet line.
Page 231 - John thence concludes — 1st. That it is the heat of these rays, not their light, which operates the change ; 2ndly. That this heat possesses a peculiar chemical quality which is not possessed by the purely calorific rays outside of the visible spectrum, though far more intense ; and, 3rdly. That the heat radiated from obscurely hot iron, abounds especially in rays analogous to those of the region of the spectrum above indicated.
Page 2 - Equally conspicuous is the goodness of the great First Cause, in having endowed man with faculties by which he can not only appreciate the magnificence of His works, but trace, with precision, the operation of his laws ; use the globe he inhabits as a base wherewith to measure the magnitude and distance of the sun and planets, and make the diameter of the earth's orbit the first step of a scale by which he may ascend to the starry firmament.