Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1863 |
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Seite xvi
... earth , and consequently towards the starry firmament , peculiarly favorable , but its atmosphere is always clear , and it is almost entirely free from the rising and falling currents of air , which offer such great optical difficulties ...
... earth , and consequently towards the starry firmament , peculiarly favorable , but its atmosphere is always clear , and it is almost entirely free from the rising and falling currents of air , which offer such great optical difficulties ...
Seite 33
... earth - boring been now carried , that solid cylinders of the rocks , perforated at extreme depths , may be obtained in the position which they occupied , and the actual dip of the strata may be ascertained by measuring the inclination ...
... earth - boring been now carried , that solid cylinders of the rocks , perforated at extreme depths , may be obtained in the position which they occupied , and the actual dip of the strata may be ascertained by measuring the inclination ...
Seite 38
... earth . In the " expressing " machines a serious difficulty was experienced at the outset in moulding through dies so as to form a perfect rectangular stream of solid clay , the increased friction at the angles of the stationary plate ...
... earth . In the " expressing " machines a serious difficulty was experienced at the outset in moulding through dies so as to form a perfect rectangular stream of solid clay , the increased friction at the angles of the stationary plate ...
Seite 52
... earth beyond . The next , with a charge of one pound eleven ounces of powder , also passed through the plate , but burst in and shattered the timber back- ing behind . No fuse was employed with these shells , the heat gen- erated by the ...
... earth beyond . The next , with a charge of one pound eleven ounces of powder , also passed through the plate , but burst in and shattered the timber back- ing behind . No fuse was employed with these shells , the heat gen- erated by the ...
Seite 83
... and ready for use at any moment , and the soldier requires but very little instruction in its employment . He has only to place the instrument in connection with the mines and the earth by means of MECHANICS AND USEFUL ARTS . 8383.
... and ready for use at any moment , and the soldier requires but very little instruction in its employment . He has only to place the instrument in connection with the mines and the earth by means of MECHANICS AND USEFUL ARTS . 8383.
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Seite 140 - In this ascension, six pigeons were taken up. One was thrown out at the height of three miles ; it extended its wings and dropped...
Seite 171 - In order to explain,' he says, ' the occurrence of the dark lines in the solar spectrum, we must assume that the solar atmosphere encloses a luminous nucleus, producing a continuous spectrum, the brightness of which exceeds a certain limit. The most probable supposition which can be made respecting the sun's constitution is, that it consists of a solid or liquid nucleus, heated to a temperature of the brightest whiteness, surrounded by an atmosphere of somewhat lower temperature. This supposition...