Journal of Natural Philosophy, Chemistry and the Arts, Band 2G. G. and J. Robinson, 1799 |
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Ergebnisse 1-5 von 97
Seite 2
... last 36 hours , the mass is stirred every quarter or half hour with an iron rod . 7. When all is cold , the veffels are removed by means of the iron circles , which prevent their breaking . The cinnabar is taken out by breaking the ...
... last 36 hours , the mass is stirred every quarter or half hour with an iron rod . 7. When all is cold , the veffels are removed by means of the iron circles , which prevent their breaking . The cinnabar is taken out by breaking the ...
Seite 6
... last time five or fix pounds of boiling water on my colour , I agitated it strongly , and poured it out into a veffel of crystal glass . A plentiful depofition of colour was made in an inftant . It was not bad , but did not poffefs the ...
... last time five or fix pounds of boiling water on my colour , I agitated it strongly , and poured it out into a veffel of crystal glass . A plentiful depofition of colour was made in an inftant . It was not bad , but did not poffefs the ...
Seite 22
... last century , the shipwrecks in this fea were so numerous , and had so terrified the people of Rovigno , that , when any one was obliged by urgent business or any other cause to go to Venice , he confidered himself as more likely to ...
... last century , the shipwrecks in this fea were so numerous , and had so terrified the people of Rovigno , that , when any one was obliged by urgent business or any other cause to go to Venice , he confidered himself as more likely to ...
Seite 23
... last century , on doubling the Cape of Good Hope ; but how few of them are now neceffary to perform this voyage in perfect fafety ! Of this I have had the fatisfaction to be certified by an English gentleman , Mr. Macpherson , with whom ...
... last century , on doubling the Cape of Good Hope ; but how few of them are now neceffary to perform this voyage in perfect fafety ! Of this I have had the fatisfaction to be certified by an English gentleman , Mr. Macpherson , with whom ...
Seite 25
... last washing and draining the faltpetre , ( 7 ) fcales and weights for weighing , ( 8 ) hydrometers and thermometers to ascertain denfities and temperatures , ( 9 ) rakes to agitate the liquor in the cryftallizing veffel , ( 10 ) ...
... last washing and draining the faltpetre , ( 7 ) fcales and weights for weighing , ( 8 ) hydrometers and thermometers to ascertain denfities and temperatures , ( 9 ) rakes to agitate the liquor in the cryftallizing veffel , ( 10 ) ...
Inhalt
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Häufige Begriffe und Wortgruppen
afcertain afford againſt alfo alkali alſo appears atmoſphere azotic gas bar iron becauſe bitumen cafe camphor carbon carbonic acid caufe cauſe Charybdis cinnabar circumftances colour combuftion confequently confiderable confifts Corundum cryftals cylinder defcribed Defcription diffolved diſtance earth eſcapement experiments falt faltpetre fame fatellites fecond feems feen feparated fhall fhew fide fimilar firſt fituation fluid fmall foda folar folid folution fome formed fpring ftate fteel fubftance fubject fuch fufficient fulphate fulphuric acid fuppofed furface glafs glaſs gold grains greateſt heat inches increaſe inftrument iron itſelf laft lefs leſs mafs meaſures mercury metal moſt motion mucilage muriatic acid muſt neceffary nitre nitric acid obferved occafioned oppofite oxygen paffed pallet Philofophical phoſphorus plates pofition prefent procefs produced purpoſe quantity reaſon refpecting refult reprefented Scylla ſeparated ſeveral ſhall ſhould ſmall ſtate ſteel ſubſtance ſuch thefe theſe thofe thoſe tube uſed veffel vibration waſhing wheel
Beliebte Passagen
Seite 355 - Armenians, have a singular method of ornamenting watch cases, &c., with diamonds and other precious stones, by simply glueing or cementing them on. The stone is set in silver or gold, and the lower part of the metal made flat, or to correspond with the part to which it is to be fixed; it is then warmed gently, and...
Seite 112 - ... made watertight by means of collars of oiled leather, the box was filled with cold water (viz. at the temperature of 60'), and the machine was put in motion. The result of this beautiful experiment was very striking, and the pleasure it afforded me amply repaid me for all the trouble I had had in contriving and arranging the complicated machinery used in making it.
Seite 113 - BOILED ! It would be difficult to describe the surprise and astonishment expressed in the countenances of the bystanders, on seeing so large a quantity of cold water heated, and actually made to boil, without any fire.
Seite 330 - The winds roared, and the rains fell. The poor white man, faint and weary, came and sat under our tree. He has no mother to bring him milk — no wife to grind his corn.
Seite 107 - Being engaged lately in superintending the boring of cannon in the workshops of the military arsenal at Munich, I was struck with the very considerable degree of Heat which a brass gun acquires in a short time in being bored, and with the still more intense Heat (much greater than that of boiling water, as I found by experiment) of the metallic chips separated from it by the borer.
Seite 13 - Far on the right, her dogs foul Scylla hides: Charybdis roaring on the left presides, And in her greedy whirlpool sucks the tides; Then spouts them from below: with fury driv'n, The waves mount up and wash the face of heav'n.
Seite 112 - ... of the other end of it, it is evident that the machinery could be put in motion, without the least danger of forcing the box out of its place, throwing the water out of it, or deranging any part of the apparatus.
Seite 114 - ... further how large a quantity of heat might be produced by proper mechanical contrivance, merely by the strength of a horse, without either fire, light, combustion, or chemical decomposition; and, in a case of necessity, the heat thus produced might be used in cooking victuals.
Seite 417 - At first they could not be persuaded of the reality of the appearance ; but they soon became so thoroughly convinced, by the cliffs gradually appearing more elevated, and approaching nearer, as it were, that they pointed out, and named to me, the different places they had been accustomed to visit ; such as the Bay, the Old Head or Man, the Windmill, &c. at Boulogne ; St. Vallery, and other places on the coast of Picardy ; which they afterwards confirmed, when they viewed them through their telescopes.
Seite 138 - Paulus ./Egineta fpeaks of fugar, as growing, in his time, in Europe, and alfo as brought from Arabia Felix ; the latter of which he feems to think lefs fweet than the fugar produced in Europe, and neither injurious to the Ûomach nor caufing thirft, as the European fugar was apt to do.