Light Science for Leisure Hours: A Series of Familiar Essays on Scientific Subjects, Natural Phenomena, EtcD. Appleton, 1895 - 343 páginas |
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Términos y frases comunes
action appearance Aratus arctic Arica astronomers Atlantic aurora auroral light bright line cause chance chromosphere circle circumference circumstance comet consider constellations continually course crater Crozet Island cyclones depths destructive difficulty disturbance doubt earth earthquake eclipse effects Encke enormous equal equator equatorial eruption evidence fact feet force gradually Greenland Gulf Stream Halley's method heat height Homer horse hundred ice-fields instance Ischia islands John Herschel land lava length less magnetic needle mathematicians matter Maury miles moon motion mountain nature nearly North Pole observations ocean odds pass peculiarity phenomena planet present problem race reached regions remarkable respecting result says sea-wave seems seen Shield of Achilles ship shores side Sir Charles Lyell solar spectroscope spectrum Spitzbergen storm sun's distance supposed surface survey swept terrestrial theory tion transit vapor Venus Vesuvius volcanic westerly white ball whole winds zodiacal light
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Página 138 - Often one half of a vessel may be perceived floating in Gulf Stream water, while the other half is in common water of the sea, so sharp is the line and such the want of affinity between those waters, and such too the reluctance, so to speak, on the part of those of the Gulf Stream to mingle with the common water of the sea.
Página 193 - ... weight, expanded in this manner : it appeared sometimes Bright and sometimes dark and spotted, as it was more or less impregnated with earth and cinders.
Página 193 - I cannot give you a more exact description of its figure than by resembling it to that of a pine-tree ; for it shot up a great height in the form of a trunk, which extended itself at the top into a sort of branches...
Página 196 - Being got at a convenient distance from the houses, we stood still, in the midst of a most dangerous and dreadful scene. The chariots which we had ordered to be drawn out, were so agitated backwards and forwards, though upon the most level ground, that we could not keep them steady, even by supporting them with large stones. The sea seemed to roll back upon itself, and to be driven from its banks by the convulsive motion of the earth ; it is certain at least the shore was considerably enlarged, and...
Página 193 - He was at that time with the fleet under his command at Misenum. On the 24th of August, about one in the afternoon, my mother desired him to observe a cloud which appeared of a very unusual size and shape. He had just returned from taking the benefit of the sun*, and after bathing himself in cold water, and taking a slight repast, was retired to his study.
Página 335 - The Pleiads, Hyads, with the northern team; And great Orion's more refulgent beam; To which, around the axle of the sky, The Bear, revolving, points his golden eye, Still shines exalted on th' ethereal plain, Nor bathes his blazing forehead in the main.
Página 201 - ... at the same time the sea immediately adjoining the plain dried up about two hundred paces, so that the fish were left on the sand, a prey to the inhabitants of Pozzuoli.
Página 240 - I ascertained, in 1829, some facts which throw light on the rate at which the sea gains upon the land. It was computed, when the present inn was built, in 1805, that it would require seventy years for the sea to reach the spot : the mean loss of land being calculated, from previous observations, to be somewhat less than one yard annually.
Página 196 - Nothing then was to be heard but the shrieks of women, the screams of children, and the cries of men, some calling for their children, others for their parents, others for their husbands, and only distinguishing each other by their voices ; one lamenting his own fate, another that of his family ; some wishing to die from the very fear of dying; some lifting their hands to the gods ; but the greater part imagining that the last and eternal night was come, which was to destroy the gods and the world...
Página 207 - the whole current," encumbered with huge masses of scoriae, " resembled nothing so much as a heap of unconnected cinders from an iron-foundery," " rolling slowly along," he says in another place, " and falling with a rattling noise over one another." After the eruption described by Dr. Clarke, the great crater gradually filled up. Lava boiled up from below, and small craters, which formed themselves over the bottom and sides of the great one, poured forth lava loaded with scoriae.