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Updated: May 19, 2025
All I saw at first was the big gold bar crossing each of her lenses, over which something convex and grotesque, like the eyes of a large insect, something that now represented her whole personality, seemed, as out of the orifice of a prison, to strain forward and press.
True achromatism cannot be obtained with ordinary flint and crown-glass; and although in lenses of "Jena glass," outstanding colour is reduced to about one-sixth its usual amount, their term of service is fatally abridged by rapid deterioration.
Collier?" he asked, as some large square boxes with a window in the bottom came into view. "These are water glasses," the scientist answered, "not the kind that is used by tourists, but some I have had made specially lenses with reflecting mirrors; with them the bottom of the sea ought to show up clearly. As you notice, they are long enough to be usable from the deck of a fair-sized sailing boat.
He studied at Bologna, and in 1546 became a member of a secret freethinking society in Venice. The society, however, was broken up, and Socinus left Italy for Switzerland and Poland. He died at Zurich. He was excommunicated by his people for atheism. He retired to the Hague and took to making lenses, and the study of philosophy.
It was characteristic of him that he was always endeavouring to improve his apparatus. He was incessantly making fresh mirrors, or trying new lenses, or combinations of lenses to act as eye-pieces, or projecting alterations in the mounting by which the telescope was supported.
While the crushing of some fragment of one of the lenses was probably due to the chance of his stepping upon it, as he turned on his heel to continue the momentarily interrupted conversation. It is hard to believe that so great a man as Grossmann could have been convulsed by a petty rage that found expression in some act of wanton destruction.
But it was work of a different kind that established Galileo's popular reputation. In 1609 Galileo heard that a Dutch spectacle-maker had combined a pair of lenses so as to magnify distant objects. Working on this hint, he solved the same problem, first on paper and then in practice. So he came to make one of the first telescopes ever used in astronomy.
For a moment I saw nothing then a tiny spot of white incandescence shone forth at the lower edge of the great spot. It grew into a point of radiance, dazzling even through the shadowed lenses. I rubbed my eyes; looked again. It was still there, larger blazing with an ever increasing and intolerable intensity. I handed the glasses to Drake, silently. "I see it!" he muttered. "I see it!
The visitor's hand, fingers outspread, returned to his knee. "Thank you. I have one more question to ask. Do you intend, without trying to prevent it, to let your daughter throw away her every chance of future happiness? Are you, Florence's father, going to let her marry Sidwell?" With one motion Scotty was on his feet. The eyes behind the thick lenses fairly flashed.
This is a typical process; but the mingled weariness and pleasure realized in following such a form without a break through all the varied changes into this condition is not easily expressed. But now the utmost power of lenses, the most delicate adjustment of light, and the keenest powers of eyesight and attention must do the rest.
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