 ... 1st. That the matter of the nucleus of a comet is powerfully excited and dilated into a vaporous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least resistance, and in all probability...  Outlines of Astronomy - Page 480by John Frederick William Herschel - 1902Full view - About this book
 | Chambers W. and R., ltd - 1850 - 794 pages
...excited and dilated into a vaporous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least...act of so escaping, and thus altering its direction. ' 2'%, That this process chiefly takes place in that portion of the nucleos which is turned towards... | |
 | 1853 - 388 pages
...excited and dilated into a vaporous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least...place in that portion of the nucleus which is turned towards the sun ; the vapor escaping chiefly in that direction. " 3dly. That, when so emitted, it is... | |
 | 1853 - 372 pages
...excited and dilated into a vaporous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least resistance, and in all probability tbrowing that surface or the nucleus itself into irregular motions by its reaction in the act of BO... | |
 | 1853 - 372 pages
...excited and dilated into a vaporous state hy the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least resistance, and in all prohahility throwing that surface or the nucleus itself into irregular motions hy its reaction in the... | |
 | 1868 - 838 pages
...excited and dilated into a vaporous state by the action of the sun's says, escaping in streams and jets at those points of its surface which oppose the least...act of so escaping and thus altering its direction. 2d. That this process chiefly takes place in that portion of the nucleus which is turned towards the... | |
 | James Craig Watson - 1861 - 384 pages
...excited and dilated into a vaporous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least...act of so escaping, and thus altering its direction. 2d. That this process chiefly takes place in that portion of the nucleus which is turned toward the... | |
 | Literary and Philosophical Society of Manchester - 1874 - 556 pages
...excited and dilated into a vapourous state by the action of the sun's rays, escaping in streams and jets at those points of its surface which oppose the least...motions by its reaction in the act of so escaping."-)- Yet the perihelion distance of this comet was as much as 0'58 of the mean distance of the earth. The... | |
 | Amédée Guillemin - 1877 - 620 pages
...irregular motions by its reaction in the act of so escaping, and thus altering its direction. ' 2ndly. That this process chiefly takes place in that portion of the nucleus •which is turned towards the sun, the vapour escaping freely in that direction. ' 3rdly. That when so emitted it is... | |
 | William Guy Peck - 1883 - 406 pages
...into irregular motions in the act of escaping, thus altering its direction. 2°. That this process takes place in that portion of the nucleus which is...sun, the vapor escaping chiefly in that direction. 3°. That when so emitted it is prevented from proceeding in the direction of the force of emission... | |
 | 1902 - 584 pages
...escaping in streams and jets at those points of the surface which oppose the least resistance. 2ndly. That this process chiefly takes place in that portion of the nucleus which is turned towards the sun; the vapour escaping chiefly in that direction. 3rdly. That when so emitted, it is... | |
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