| 1803
...the computation; which is, that a telescope with a power of penetrating into space, like my 40-feet **one, has also, as it may be called, a power of penetrating...enter the eye cannot have been less than 6 years and** 4-J mouths coming from that star to the observer. Hence it follows, that wheii we see an object of... | |
| 1824
...this fact, he thus remarks ; ' A telescope with a power of penetrating into space, like my forty-feet **one, has also, as it may be called, a power of: penetrating...rays which enter the eye, cannot have been less than** six years and four months and a half coming from that star to the observer. Hence it follows, that... | |
| Francis Jenks, James Walker, Francis William Pitt Greenwood, William Ware - 1824
...this fact, he thus remarks ; ' A telescope with a power of penetrating into space, like my forty.feet **one, has also, as it may be called, a power of penetrating...be proved, that, when we look at Sirius, the rays** whkh enter the eye cannot have been less than six years and four monthi and a halt coming from that... | |
| Levi Washburn Leonard - 1827 - 318 pagina’s
...this fact, he thus remarks ; a telescope with a power of penetrating into space, like my forty feet **one, has also, as it may be called, a power of penetrating...velocity of light, it may be proved that when we look at** the star called Sirius, the THE CONSTELLATIONS. * 119 rays which enter the eye cannot have been less... | |
| Levi Washburn Leonard - 1828 - 318 pagina’s
...consider that from the known velocity of light, it may be proved that when we look at the star called **Sirius, the rays which enter the eye cannot have been less than** six years and four months and a half coming from that star to the observer. Hence it follows that when... | |
| Levi Washburn Leonard - 1830 - 320 pagina’s
...this fact, he thus remarks ; a telescope with a power of penetrating into space, like my forty feet **one, has also, as it may be called, a power of penetrating...consider that from the known velocity of light, it** n^ay be proved that when we look at the star called Sirius, the THE CONSTELLATIONS. 119 rays which... | |
| Charles Bucke - 1837
...respective ages of the fixed stars ? No one ! Yet when it may be proved, by the velocity of light, **that when we look at Sirius, the rays which enter the eye cannot have been less than** six years and four months and a half coming from that star to the observer, it follows that when we... | |
| Charles Bucke - 1841 - 329 pagina’s
...the respective ages of the fixed stars ? No one ! Yet when it may be proved by the velocity of light, **that when we look at Sirius, the rays which enter the eye cannot have been less than** six years and four months and a half coming from that star to the observer, it follows that when we... | |
| Patrice Larroque - 1860 - 438 pagina’s
...ch. 18, Paris, 1838.) (2) » A télescope with a power of penetrating into space, like my 40 feet " **one, has also, as it may be called, a power of penetrating...past. « To explain this, we must consider that, from** thé known velocity of light, • it may be proved that, when we look at Sirius, thé rays which enter... | |
| 1846
...Forty feet one, ba:t als" as it may be cntled, a power of penetrating into time past. To explain tins **we must consider, that, from the known velocity of light, it may be proved, that, when we look at** Siriua, the rays, which enter the eye, can not have been less than six years, ami four and a half months,... | |
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