English Mechanic and World of Science: With which are Incorporated "the Mechanic", "Scientific Opinion," and the "British and Foreign Mechanic.", Band 39E. J. Kibblewhite, 1884 |
Im Buch
Ergebnisse 1-5 von 82
Seite 1
... causes negative soldered to the outside of the boiler . corrosion and scale certainly with some of decay in the ... cause of the failure any rate in connnection with marine boilers . boiler was the best and only trustworthy of the ...
... causes negative soldered to the outside of the boiler . corrosion and scale certainly with some of decay in the ... cause of the failure any rate in connnection with marine boilers . boiler was the best and only trustworthy of the ...
Seite 12
... cause . The hydrogen , I remarked , a good watch , compared for several hours before might be telluric , derived from the Javan eruptions and after the occultation with the best public clock in conjunction with other eruptions that ...
... cause . The hydrogen , I remarked , a good watch , compared for several hours before might be telluric , derived from the Javan eruptions and after the occultation with the best public clock in conjunction with other eruptions that ...
Seite 15
... cause . In India the trouble is not unfrequent ; the heat and dryness of the air affect probably the form of the nail . Expertus . CONCERNING LOCOMOTIVE ENGINES . [ 22450 . ] - IN some ridiculous directions for dan- cing , given in a ...
... cause . In India the trouble is not unfrequent ; the heat and dryness of the air affect probably the form of the nail . Expertus . CONCERNING LOCOMOTIVE ENGINES . [ 22450 . ] - IN some ridiculous directions for dan- cing , given in a ...
Seite 19
... cause the vibrators to catch against the sides of the reed apertures , and so cause a rattling when the reeds are subjected to a high pressure , and if the vibrators in any way touch the sides of the blocks , it would cause the notes to ...
... cause the vibrators to catch against the sides of the reed apertures , and so cause a rattling when the reeds are subjected to a high pressure , and if the vibrators in any way touch the sides of the blocks , it would cause the notes to ...
Seite 20
... cause , and experimenting to find a remedy , we filled the engine gas bag , and then shut off gas at meter , and find the gases jump just the same as when the connections from engine to main are open . I must say that the engine is ...
... cause , and experimenting to find a remedy , we filled the engine gas bag , and then shut off gas at meter , and find the gases jump just the same as when the connections from engine to main are open . I must say that the engine is ...
Inhalt
133 | |
153 | |
171 | |
190 | |
205 | |
209 | |
213 | |
224 | |
226 | |
235 | |
253 | |
286 | |
302 | |
419 | |
433 | |
437 | |
446 | |
461 | |
464 | |
468 | |
480 | |
512 | |
521 | |
532 | |
557 | |
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
achromatic acid Allinson amateur amount angle answer appears armature battery boiler bottom brass carbon cells centre chuck coil colour copper correspondent cubic foot cylinder Daniell cells diameter disc distance dynamo edge electric electromotive force Elswick engine ENGLISH MECHANIC experience eyepiece front slide give given glass glycerine heat hive hole hydrogen Influence Machine iron kindly lamp lathe length lens letter light machine magnet mandrel marginal rays means metal method microscope nickel nitric acid object observed obtained ordinary oxygen paper piece pipe plate potash practical present pressure Prof pump purfling quantity querist query rays readers reply round screw shellac side solution spherical aberration stars steam sulphuric acid surface telescope thick thread tion tool tube turn vegetarian weight wheels wire zinc
Beliebte Passagen
Seite 541 - Naturalists continually refer to external conditions, such as climate, food, &c., as the only possible cause of variation. In one limited sense, as we shall hereafter see, this may be true; but it is preposterous to attribute to mere external conditions, the structure, for instance, of the woodpecker, with its feet, tail, beak, and tongue, so admirably adapted to catch insects under the bark of trees.
Seite 513 - This substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel ; in either case the oxidation of the lead affords a means of separating it from precious or inoxidisable metals if any were originally present in the lead. The above fact has been known from remote antiquity, and the early Jewish writers allude to it as old and well known.
Seite 128 - Sir Richard Phillips had four valuable qualities; honesty, zeal, ability, and courage. He applied them all to teaching matters about which he knew nothing; and gained himself an uncomfortable life and a ridiculous memory.
Seite 127 - NY, who, after having adopted a vegetable diet for sixteen months, thus writes : " I do not go beyond the truth when I say that I cannot find a man to vie with me in the field, •with the scythe, the fork, or the axe. I do not want anything but potatoes and salt, and I can cut and put up four cords of wood in a day, with no very great exertion.
Seite 513 - Arabian, gives, if mediaeval translations of his works are to be trusted,4 a sufficiently accurate description of the process to enable it to be conducted at the present day with no other aid than his ; but it must be remembered that it was the object of the alchemist to distinguish silver from gold, and to isolate the metals, rather than to determine the amount of one metal present in admixture with another. Geber calls the process of cupellation the trial of the cineritium, and he points out, in...
Seite 513 - ... lump, make a round and smooth hollowness, and upon the bottom of it strew a small quantity of glass beaten to powder, which lay to dry. When dry put your metal into the hollowness thereof, which you would try to prove, put coals of fire upon it, then blow with bellows upon the surface till the metal flows : upon which, being in flux, cast part after part of lead, and blow with a flame of strong ignition ;" this is to be continued " until the lead is vanished...
Seite 94 - Fickeissen and Becker, of Villingen, Baden. The plates or surfaces can be prepared from paper, cloth, or other suitable fabric or material, but by preference from white paper containing very little size and not much grain. This paper is first extended on a frame, or other arrangement, according to the size of the plate or surface which is desired. After it is dry, the surface is covered with a fine coat of copal...
Seite 127 - Ibs., by a young man, whose health had been indifferent at the beginning of the experiment. Only two prisoners lost at all in weight, and the quantity in each case was trifling. The prisoners all expressed themselves quite satisfied with this diet, and regretted the change back again to the ordinary diet.
Seite 513 - ... part of the mass, as a larger proportion of gold would protect the alloy from the solvent action of the acid, and the greater the amount of gold the less perfect would be the attack of the acid. In any case the first stage of assaying a gold alloy, say a sovereign, is to melt it with such an amount of silver as shall yield a button containing rather less than one-third of its weight of gold.
Seite 177 - Megalotrocha alhoflavicans, or Lacinularia socialis, would send living specimens to Dr. CT Hudson, who was much in want of them for his forthcoming work on the Rotatoria. The President announced that the following resolution had that evening been passed by the Council, and gave notice that a special meeting of the Society would be held on the 14th May next, for the purpose of taking it into consideration, and passing such resolutions as might be considered desirable, whether by alteration of the...