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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...my month at Ardtornish. I may set down, however, an interesting elucidation of a truth in optics I noted while there. Along the shore of Loch Aline, between the new house and the ferry, there is a tract of shelving beach on which grows a zone of bladder-weed, covered at high tide, dry at low tide, and at mid-tide partially floating, in such wise that the upper fronds of each plant lie on the surface. As we drove by one day, when a fresh breeze was blowing from the other side of the loch, producing waves of moderate size, the surfaces of which were of course covered by wavelets and ripples, my attention was drawn to the fact that all the wavelets and ripples were stopped by this belt formed of the patches of partially-floating bladder-weed, while the larger undulations passed through this belt, and, traversing the smooth water inside of it, reached the beach. This struck me as illustrating that which is said to happen with luminiferous undulations. Passing through air containing impurities--dust, smoke or thick vapour--the shorter among these are stopped, while the longer pass through. The result is that under such circumstances the Sun appears red: the red rays being those formed of the longer undulations. Doubtless the waves are of utterly different natures, so that nothing more than analogy may be alleged; but it is an interesting analogy. The transition from the scientific to the comic is a violent one; but I am led to make it here by remembering that during my stay I verified a rather amusing story which dated back some dozen years or more. The head gamekeepers son, a young man of twenty, was quizzed by me one day when we were out fishing, concerning this story of his boyhood; and, as he looked sheepish and did not deny it, I presume...
| ISBN-13 | 9781152626447 |
|---|---|
| ISBN-10 | 1152626442 |
| Weight | 1.02 Pounds |
| Dimensions | 9.00 x 6.00 x 0.70 In |
| List Price | $26.81 |
| Format | Paperback |
|---|---|
| Pages | 312 pages |
| Publisher | |
| Published On | 2010-01-01 |
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