"Flint glass" Quotes from Famous Books
... the scientist. Again he peeked through the glowing bull's-eye. Then, his face slightly pale, his bulging eyes blinking nervously, he took two small flint glass bottles, set them under a couple of pipettes, ... — The Air Trust • George Allan England
... marks the limit beyond which total reflection takes place is called the limiting angle (it is marked in fig. 6 by the strong line E n''). It must evidently diminish as the refractive index increases. For water it is 481/2 deg., for flint glass 38 deg.41', and for diamond 23 deg.42'. Thus all the light incident from two complete quadrants, or 180 deg., in the case of diamond, is condensed into an angular space of 47 deg.22' (twice 23 deg.42') by refraction. Coupled with its great refraction, ... — Six Lectures on Light - Delivered In The United States In 1872-1873 • John Tyndall
... FLINT GLASS MAKING. By a British Glass Master and Mixer. Sixty Recipes. Being Leaves from the Mixing Book of several experts in the Flint Glass Trade, containing up-to-date recipes and valuable information as to Crystal, Demi-crystal and Coloured ... — The Dyeing of Woollen Fabrics • Franklin Beech
... glass for a telescope, if one has sufficient cash, one buys a glass made of crown and flint glass placed together, which destroys color, which produces what is called an achromatic lens. Now just as we judge of the value of a glass by its ability to bring things as they are within the range of our vision, so, says Browning, old age is much better than youth. In age our old eyes become achromatic. ... — Robert Browning: How To Know Him • William Lyon Phelps |