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 ...

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Routledge, Warne, and Routledge, 1860 - Science - 440 pages
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page 138 how to photo 1860

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Page 255 - 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.
Page 138 - 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.
Page 195 - ... is deflected to one side or the other, according to the direction of the current ; and...
Page 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...
Page 425 - In engines that are to be worked wholly or partially by condensation of steam, the steam is to be condensed in vessels distinct from the...
Page 420 - Vauxhall, beyond the palace of the Archbishop of Canterbury, to see an hydraulic machine invented by my Lord Somerset, Marquis of Worcester. It raises water more than forty geometrical feet, by the power of one man only ; and in a very short space of time will draw up four vessels of water through a tube or channel not more than a span in width...
Page 381 - Ihe diffusion of heat through water does not take place like that of solids, but is effected by the motion of the particles of the water. When heat is applied to the bottom of a vessel containing water, such as an inverted glass shade, the first effect is to expand the layer of water which is...
Page 284 - ... hand towards either side, the hand of the image will move towards the other ; so that, whatever way the object moves, the image will move the contrary way.
Page 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.
Page 138 - 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...

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