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It hadn't been done. Calhoun fumed to himself. The world of Weald Three grew brighter and brighter and became a disk. The disk had ice-caps and a reasonable proportion of land and water surface. The Med Ship decelerated, and voices notified observation from the surface, and the little craft came to a stop some five planetary diameters out from solidity.
E.E. Barnard, of the Yerkes Observatory, are as follows: Ceres, 477 miles; Pallas, 304 miles; Juno, 120 miles; Vesta, 239 miles. It is only necessary to mention these diameters in order to indicate how wide is the difference between the asteroids and such planets as the earth, Venus, or Mars. The entire surface of the largest asteroid, Ceres, does not equal the republic of Mexico in area.
Where the diameter of the gauze is, say, not over one or two inches, the theoretical maximum gas supply may be exceeded, and a varying compensation is necessary with each size. My rule is intended to apply to burners of larger diameters, where the external air supply plays a comparatively unimportant part.
At a distance of 75 feet are two concentric circles, diameters 155 and 184 feet respectively, made of stones 5 or 6 feet high. The space between the two circles is filled with earth. Within these is a third concentric circle about 48 feet in diameter made of stones of the same size. Mr. Lewis compares this group of monuments with that of Stanton Drew in Somersetshire.
There was very little wind in the low regions of the atmosphere, and that little blew from the east. No trace of clouds was to be seen. M. Bonpland states that, from the first appearance of the phenomenon, there was not in the firmament a space equal in extent to three diameters of the moon, which was not filled every instant with bolides and falling stars.
Experiments for ascertaining how far Telescopes will enable us to determine very small Angles, and to distinguish the real from the spurious Diameters of Celestial and Terrestrial Objects: with an Application of the Result of these Experiments to a Series of Observations on the Nature and Magnitude of Mr. Harding's lately discovered Star.
To the naked eye it appeared to be a capital copy; in fact, it seemed to bear every semblance of being genuine. In the first enlargement of several diameters certain inaccuracies of tracing could be discerned, only, however, after attention had been called to them by an expert. In the next enlargement these same errors were more apparent, and so on through the series.
Looking through the upper window on the left, I was struck by the rapid enlargement of a star which, when I first noticed it, might be of the third magnitude, but which in less than a minute attained the first, and in a minute more was as large as the planet Jupiter when seen with a magnifying power of one hundred diameters.
We work wholly on planets, and they are taught to find a planet at any hour of the day, to make drawings of what they see, and to determine positions of planets and satellites. With the clock and chronograph they determine difference of right ascension of objects by the electric mode of recording. They have sometimes measured diameters.
If a pillar was too long for its companion, it was shortened without reference to its diameters or form. Columns of different stones were jumbled together in a row. Thus, amongst a number of columns of purple granite in the church of Ara Celi at Rome we discover two Ionian columns of white marble.
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