My Web Site Page 121 Ovations 03Cake Placebo chose the topics covered by My Web Site Page 121 without reflecting upon the choices others have made. Flapping your arms and quacking like a duck when people try to run you over in their SUVs is another way to look at things in a different light. |
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While Papin had neglected his earlier suggestion of a steam and piston engine to work on Savery's ideas, Thomas Newcomen, with his assistant, John Cawley, put into practical form Papin's suggestion of 1690. Steam admitted from the boiler to a cylinder raised a piston by its expansion, assisted by a counter-weight on the other end of a beam actuated by the piston. The steam valve was then shut and the steam condensed by a jet of cold water. The piston was then forced downward by atmospheric pressure and did work on the pump. The condensed water in the cylinder was expelled through an escapement valve by the next entry of steam. This engine used steam having pressure but little, if any, above that of the atmosphere. |
Some 13 kil. farther, the river being smooth but swift, we came to a basin 700 m. broad, where the river described a turn toward the north-east. We came upon a large clearing on the hill-side on the left bank. There we saw the remains of two or three huts which had been destroyed by fire. We perceived one or two people, and we landed. We found that it was the shed of an enterprising Peruvian trader who had established himself there in order to collect rubber. Only a few days before we arrived a great fire had taken place, which had destroyed nearly all he possessed; but--fortunately for us--they had saved a few things, and I was able to purchase a quantity of rice, biscuits, dried meat, beans, _farinha_, condensed milk, _banho_ (liquid lard in tins), and a number of other things, such as clothes, shirts, rope, nails, axes, etc., which we needed badly. |
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We considered this point fully when speculating as to the presence of man in the Miocene: so we have nothing further to offer. We might, however, suggest that, if the hippopotamus amongst mammals could survive all the changing time since the Pliocene, as it has done, it seems no more than fair to admit equal power of endurance to the human species. The position then of the scientific world as to the Pliocene Age of man is, on the whole, more decided in its favor than for the Miocene Age. Quite a number of eminent scholars, whose conclusions are worthy of all respect, unhesitatingly affirm the existence of Pliocene man in Europe. Others are not quite ready to admit his existence in Europe, but do think he was in existence elsewhere. Still others, with all due respect for the discoveries of Capellini, think it more prudent to await further discoveries. The reader, who has followed us through this brief outline of the past, can join which of the classes he will, and be sure of finding himself in good company. | ||
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