On the Connection of the Physical Sciences

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Harper & Brothers, 1846 - 460 pages

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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.

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