The Boy's Playbook of Science: Including the Various Manipulations and Arrangements of Chemical and Philosophical Apparatus Required for the Successful Performance of Scientific Experiments ...Routledge & Sons, 1875 - 440 pàgines |
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The Boy's Playbook of Science; Including the Various Manipulations and ... John Henry Pepper Previsualització no disponible - 2022 |
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Passatges populars
Pàgina 132 - An Account of a Method of Copying Paintings upon Glass, and of making Profiles by the Agency of Light upon Nitrate of Silver; with Observations by H. Davy.
Pàgina 241 - Let there be light, said God ; And forthwith light Ethereal, first of things, quintessence pure, Sprung from the deep...
Pàgina 92 - I presently found that, by means of this lens, air was expelled from it very readily. Having got about three or four times as much as the bulk of my materials, I admitted water to it, and found that it was not imbibed by it. But what surprised me more than I can well express, was that a candle burned in this air with a remarkably vigorous flame...
Pàgina 241 - To gild refined gold, to paint the lily, To throw a perfume on the violet, To smooth the ice, or add another hue Unto the rainbow, or with taper-light To seek the beauteous eye of heaven to garnish, Is wasteful and ridiculous excess.
Pàgina 331 - Thus with the year Seasons return; but not to me returns Day or the sweet approach of even or morn, Or sight of vernal bloom, or summer's rose, Or flocks, or herds, or human face divine; But cloud instead and ever-during dark Surrounds me...
Pàgina 331 - Seasons return; but not to me returns Day, or the sweet approach of even or morn, Or sight of vernal bloom, or summer's rose, Or flocks, or herds, or human face divine; But cloud instead, and ever-during dark Surrounds me, from the cheerful ways of men Cut off, and for the book of knowledge fair Presented with an universal blank Of Nature's works, to me expung'd and ras'd, And wisdom at one entrance quite shut out.
Pàgina 83 - ... he felt himself struck in his arms, shoulders, and breast, so that he lost his breath, and was two days before he recovered from the effects of the blow and the terror;" adding, that " he would not take a second shock for the kingdom of France.
Pàgina 132 - What do you say to the light of the sun ? ' ' How can that be ? ' asked the doctor. ' It is nothing else,' said the engineer : ' it is light bottled up in the earth for tens of thousands of years, — light, absorbed by plants and vegetables, being necessary for the condensation of carbon during the process of their growth, if it be...
Pàgina 331 - So much the rather thou, Celestial Light, Shine inward, and the mind through all her powers Irradiate...
Pàgina 74 - A crystal is now defined to be an inorganic body, which, by the operation of affinity, has assumed the form of a regular solid terminated by a certain number of planes or •smooth surfaces. Thousands of minerals are discovered in the crystallized...