Glasgow Mechanics' Magazine, and Annals of Philosophy, Volym 4W.R. M'Phun., 1826 |
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Sida 8
... specific gravity of 1.100 ; weigh it accurately together with the phial , and note down their weight in grains . Pour some of this acid very gradually into the solution , and stir it till it ceases to effervesce ; when , if it turns red ...
... specific gravity of 1.100 ; weigh it accurately together with the phial , and note down their weight in grains . Pour some of this acid very gradually into the solution , and stir it till it ceases to effervesce ; when , if it turns red ...
Sida 43
... specific gravity is 3.5 ; but , as they always contain some bleb- by cavities , this must be too low . Their powder is of a dull greyish black colour . This oxide has hitherto been supposed to be the same as the native magnetic oxide ...
... specific gravity is 3.5 ; but , as they always contain some bleb- by cavities , this must be too low . Their powder is of a dull greyish black colour . This oxide has hitherto been supposed to be the same as the native magnetic oxide ...
Sida 44
... specific gravity would be much greater than it really is , since that of the deutoxide is more than 4.7 , and that of iron 7.5 . Moreover , when we treat a mixture of very fine iron filings and the pulverized deutoxide or peroxide ...
... specific gravity would be much greater than it really is , since that of the deutoxide is more than 4.7 , and that of iron 7.5 . Moreover , when we treat a mixture of very fine iron filings and the pulverized deutoxide or peroxide ...
Sida 62
... specific gravity , at the utmost , does not exceed one - third of that of forged iron ; it is , in fact , pure iron , min- utely divided , and in a state ana- logous to that of spongy platina . If the cementation has been con- tinued ...
... specific gravity , at the utmost , does not exceed one - third of that of forged iron ; it is , in fact , pure iron , min- utely divided , and in a state ana- logous to that of spongy platina . If the cementation has been con- tinued ...
Sida 85
... specific gravity , and its boiling point is very near to that at which lead melts ; acid of speci- fic gravity 1.848 , boiling at 590 ° ; of 1.849 , at 6050 ; and lead melting at 6120. There is , consequently , great danger of the metal ...
... specific gravity , and its boiling point is very near to that at which lead melts ; acid of speci- fic gravity 1.848 , boiling at 590 ° ; of 1.849 , at 6050 ; and lead melting at 6120. There is , consequently , great danger of the metal ...
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Sida 154 - The weights I use are one globule of gold which weighs one grain, and two or three others which weigh onetenth of a grain each ; and also a number of small rings of fine brass wire, made in the manner first mentioned by Mr. Lewis, by appending a weight to the wire, and coiling it with the tension of that weight round a thicker brass wire in a close spiral, after which the extremity of the spiral being tied hard with waxed thread, I put the covered wire in a vice, and applying a sharp knife, which...
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Sida 155 - You will perceive that by means of these weights placed on different parts of the beam, I can learn the weight of any little mass from one grain, or a little more, to the -j-'j,-, of a grain.
Sida 155 - If on the contrary it weigh one grain and a fraction, it will be counterpoised by the heavy gold weight at the extremity, and one or more of the lighter ones placed in some other part of the beam. This beam...
Sida 154 - The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use the balance, and the two ends are bent up to a right angle so as to stand upright. These two ends .are ground at the same time on a flat hone, that the extreme surfaces of them may be in the same plane ; and their distance is such that the needle when laid across them rests on them at a small distance from the sides of the beam.