| Hugh Frank Newall - 1910 - 188 pages
...moved no more. For in that posture the refractions of the light at the two sides of the refracting angle, that is at the entrance of the rays into the...often as I would have the refractions on both sides of the prism to be equal to one another, I noted the place where the image of the sun formed by the... | |
| Frederic William Westaway - 1912 - 474 pages
...that position. For in that position, the refractions of the light at the two sides of the refracting angle, that is at the entrance of the rays into the...refracted light stood still between its two contrary motions; and when the image fell upon that place, I made fast the prism. And in this position it is... | |
| Samuel Alfred Mitchell - 1923 - 574 pages
...posture the refractions of the light at the two sides of the refracting angle, that is at the entrance of it, were equal to one another. So also in other...often as I would have the refractions on both sides of the prism to be equal to one another, I noted the place where the image of the sun formed by the... | |
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