Journal of Science and the Arts, Zväzok 51818 |
Vyhľadávanie v obsahu knihy
Výsledky 1 - 5 z 49.
Strana 6
... minute and trivial discussions , and unable to operate with vigour and effect , even upon those subjects which are per- mitted to their research . " It has therefore seldom been in the power of an absolute monarch , to afford a degree ...
... minute and trivial discussions , and unable to operate with vigour and effect , even upon those subjects which are per- mitted to their research . " It has therefore seldom been in the power of an absolute monarch , to afford a degree ...
Strana 28
... minute exami- nation would have detected others , and particularly the corun- dum , all the varieties of which , including the finest blue sap- phires , are found in considerable abundance in the alluvial country at the foot of the ...
... minute exami- nation would have detected others , and particularly the corun- dum , all the varieties of which , including the finest blue sap- phires , are found in considerable abundance in the alluvial country at the foot of the ...
Strana 32
... minutes to pass this through the machine ; but I took care not to let the man know I was timing him , lest he should make an ex- traordinary exertion ; and he seemed to be working at the ordinary rate , at which he could continue to ...
... minutes to pass this through the machine ; but I took care not to let the man know I was timing him , lest he should make an ex- traordinary exertion ; and he seemed to be working at the ordinary rate , at which he could continue to ...
Strana 33
equal parts , and the second process took three minutes ; but , if the whole quantity had been used , I do not think it would have required more exertion . The whole process for the pound took sixteen minutes ; and the loss , upon ...
equal parts , and the second process took three minutes ; but , if the whole quantity had been used , I do not think it would have required more exertion . The whole process for the pound took sixteen minutes ; and the loss , upon ...
Strana 38
... minutes to pass through both machines separately ; would not both machines work at the same time ? -Certainly ; but it would require pre- paration to connect the two processes . There is no doubt but that the two machines might be ...
... minutes to pass through both machines separately ; would not both machines work at the same time ? -Certainly ; but it would require pre- paration to connect the two processes . There is no doubt but that the two machines might be ...
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Časté výrazy a frázy
Adam's Peak alkali ammonia ancient angle appears arts ascertained atmosphere azote BAMBUSA blue bodies carbonate chloride Chromic Oxide chymical chymistry cinders circle coast colours consists containing crystals Cyperaceae degree DISPERIS distance Ditto earth effect equal exhibited experiments feet flame flax given number glass green Greenland heat Hill and Bundy's horizontal hornblend hydrogen hydrometer inches instrument iron island kaleidoscope lava length light lime liquid machine magnetic means measure meridian metal muriatic muriatic acid nature nearly needle Niger nitric acid object observed obtained oxide oxygen paper particles passing pendulum plates platinum potash produced proportion quantity quicksilver rays reflected reflectors result river rock Royal salt sciences SCIRPUS seen solution species specific gravity stone substance supposed surface tangent screw telescope temperature thermometer tion tube vegetable whole wire Zaire
Populárne pasáže
Strana xxii - Hudson's Bay Company, and his attempt to establish a Colony on the Red River; with a Detailed Account of his Lordship's Military Expedition to, and Subsequent Proceedings at Fort William, in Upper Canada.
Strana 324 - B. placed the fluids in a trough formed by two plates of glass cemented together at an angle. The eye being necessarily placed at one end, some of the cement which had been pressed through between the plates appeared to be arranged into a regular figure. The symmetry of this figure being very remarkable, Dr B.
Strana 332 - ... instrument is directed, if it only be in its proper place the effect just described is sure to take place, and with an endless variety. In this respect, the kaleidoscope appears to be quite singular among optical instruments. Neither the instrument of Bradley, nor the experiment or theorem in Wood's book, have any resemblance to this ; they go no further than the multiplication of the figure.
Strana 9 - ... withhold their protection from the fine arts, and debar themselves of the pleasures derived from works of literature and taste. Strange and novel as the assertion may appear,, it is no less true, that .the advantages and enjoyments which these studies and pursuits afford, are not only obtained without any expense to the country in which they are encouraged, but, that they actually repay, in wealth and emolument, much more than they require for their support. To •what are all the astonishing...
Strana 294 - The notion that these bodies come from the moon is, when considered, neither absurd nor impossible. It is quite true, that the quiet way in which they visit us is against such an origin ; it seems, however, that any power which would move a body 6000 feet in a second, that is, about three times the velocity of a cannon ball, would throw it from the sphere of the moon's attraction into that of our earth.
Strana 161 - Padron, it is stated that the river put on a majestic appearance, that the scenery was beautiful, and not inferior to any on the banks of the Thames ; and the natives of this part all agreed in stating, that they knew of no impediment to the continued navigation of the river; that the only obstruction in the north-eastern branch, was a single ledge of rocks, forming a kind of rapid, over which however canoes were able to pass.
Strana 294 - While we are considering the possibility of these considerations it may be remembered, that in the great laboratory of the atmosphere, chemical changes may happen, attended by the production of iron and other metals ; that at all events such a circumstance is within the range of possible occurrences ; and that the meteoric bodies which thus salute the...
Strana 182 - It is generally admitted that, for the last four hundred years, an extensive portion of the eastern coast of Old Greenland has been shut up by an impenetrable barrier of ice, and, with it, the ill-fated Norwegian or Danish colonies, which had been established there for more than an equal length of...
Strana 168 - The length of the pendulum vibrating seconds in the latitude of London forms the standard of the British measure of extension.
Strana 394 - The || Travels || of || Marco Polo, || a Venetian, || in the Thirteenth Century : || being a || Description, by that early traveller, || of || remarkable places and things, || in || the || Eastern Parts of the World. || Translated from the Italian, || with || Notes, || by William Marsden, FRS, &c.