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The diameter of Algol is believed to be about 1,125,000 miles, that of the dark body about 840,000 miles, and the mean distance from center to center 3,230,000 miles. The density of both the light and the dark star is slight compared with that of the sun, so that their combined mass is only two thirds as great as the sun's.
Ashes. Density. Peat 5.63 57.03 29.67 2.09 5.58 Lignite 5.59 70.49 17.2 1.73 49.1 4.99 1.2 Bitumin. coal 5.14 87.45 4 1.63 68 1.78 1.29 Anthracite 3.3 92.5 2.53 89.5 1.58 1.3
In that northern country where my wife taught her school and where I was to live for nearly two years as a convalescent, the hollows of the ground on clear cold summer nights, when the mercury dipped down close to the freezing point, would sometimes fill with a white mist of extraordinary density.
If, in addition, one recalls the fact that the ether is homogeneous, that is all of one kind, and also that it is not composed of atoms and molecules, then degree of compactness and number of particles per cubic inch have no meaning, and the term density, if used, can have no such meaning as it has when applied to matter.
It is a vague sense of ponderous remembrances; a perception of such weight and density in a bygone life, of which this spot was the centre, that the present moment is pressed down or crowded out, and our individual affairs and interests are but half as real here as elsewhere.
It is therefore certain that the combined effect of both causes must bring the temperature of Mars down to at least 70° or 80°below the freezing point. The cause of this absolute dependence of terrestrial temperatures upon density of the air-envelope is seldom discussed in text-books either of geography or of physics, and there seems to be still some uncertainty about it.
A conviction had been growing upon him during the past twelve hours that someone was persistently and cleverly dogging his footsteps. He had first detected the presence of this mysterious follower outside the house of Sin Sin Wa, but the density of the fog had made it impossible for him to obtain a glimpse of the man's face.
A few years ago this loss was regularly made up from the sea, with the result that the water in the boilers was gradually increased in density; whence followed deposit on the internal surfaces, and consequent loss of efficiency, and danger of accident through overheating the plates.
I recommenced my wanderings; but I remember nothing else particularly claiming to be mentioned, unless it be Paternoster Row, a little, narrow, darksome lane, in which, it being now dusk in that density of the city, I could not very well see what signs were over the doors. In this street, or thereabouts, I got into an omnibus, and, being set down near Regent's Circus, reached home well wearied.
In her eyes he was a hero, a victim of injustice and the density of grown-ups. She promptly released Prince, who bounded after his master. She wanted to go too. It was all her fault, bringing that horrid boy to tea. She did hope Roy would explain things properly. But boys were stupid sometimes and she wanted to make sure.
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