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Updated: May 18, 2025
Instances might be given proving how, in Science, an advance of one division presently advances other divisions how Astronomy has been immensely forwarded by discoveries in Optics, while other optical discoveries have initiated Microscopic Anatomy, and greatly aided the growth of Physiology how Chemistry has indirectly increased our knowledge of Electricity, Magnetism, Biology, Geology how Electricity has reacted on Chemistry and Magnetism, and has developed our views of Light and Heat.
"Light moves," says Brewster, Optics, p. 2, "from one pole of the earth to the other in the 24th part of a second: a velocity which surpasses all comprehension." Brinkley, Astronomy, p. 130.
"'You should have called me at once, he said in his whispering voice, fixing his great eyes on my face. "I stammered something about an awful dream, but he ignored my remark utterly, and I caught his eye wandering next if any movement of those optics can be described as 'wandering' to the book-shelf. I watched him, unable to move my gaze from his person.
If he could not depend on this conformity to law, on this causal connection taking place according to simple necessities, he could not select, make, and use, with certainty, any tool, from the club with which he defends himself against his enemies or cracks the shells of fruit, up to the finest instruments of optics and chemistry, and even to the telegraph and steam engine.
Our spirits were beginning to rise, when an unlucky accident sent them down to zero. The hoops of one of the barrels handled were insecure, and coming off, the staves fell apart, and along with a defensive covering of slabs of salt, a neat assortment of revolver cartridges came tumbling out. The Japanese lieutenant smiled till his little oblique optics were scarcely perceptible.
Are not these as plain proofs, that the passions of fear and hope are mixtures of grief and joy, as in optics it is a proof, that a coloured ray of the sun passing through a prism, is a composition of two others, when, as you diminish or encrease the quantity of either, you find it prevail proportionably more or less in the composition?
Secondly, beloved, that I will administer my fist to thy distorted visual optics; and will conclude, beloved, with a practical application of the flat of my sword to the shoulders of the recusant."
For the first time in the life to which he had been the guiding-star, she ventured to wonder if the unswerving rectitude that had elevated him above the level of other men, in her esteem and affection, were so glorious a thing after all; if a tempering, not of human frailty, but of charity for the shortcomings, sympathy for the needs, of ordinary mortals, would not subdue the effulgence of his talents and virtues into mild lustre, more tolerable to the optics of fallible beholders
"My father's library was a spot of some austerity; the proceedings of learned societies, cyclopædias, physical science and above all, optics held the chief place upon the shelves, and it was only in holes and corners that anything legible existed as if by accident. Parents' Assistant, Rob Roy, Waverley and Guy Mannering, Pilgrim's Progress, Voyages of Capt.
Toughened glass has made some progress for certain purposes. Besides the improved and extended use of glass in lighthouse illumination, it has again been pressed into our service for other purposes, through our greatly extended knowledge of the laws of optics.
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