The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volume 13Gould, Kendall, and Lincoln, 1862 |
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Pagina 45
... solution of white wax in benzine . Moderately heated benzine dissolves half its weight of wax ; and if this solution be carefully applied to the tool with a brush , the evaporation leaves a very adhesive and permanent coating of wax ...
... solution of white wax in benzine . Moderately heated benzine dissolves half its weight of wax ; and if this solution be carefully applied to the tool with a brush , the evaporation leaves a very adhesive and permanent coating of wax ...
Pagina 48
... solution ; and this after a time proves too strong , and tears up the ordinary etching - ground ; it has , however , been found that turpentine - varnish , if allowed for a few days to harden , has a great resistance ; and by the use of ...
... solution ; and this after a time proves too strong , and tears up the ordinary etching - ground ; it has , however , been found that turpentine - varnish , if allowed for a few days to harden , has a great resistance ; and by the use of ...
Pagina 52
... solution of isinglass in water , the design then pencilled on with asphaltum , the superfluous gold re- moved with a dossil of cotton dipped in water , which leaves intact the parts touched with asphaltum , and the latter finally 52 ...
... solution of isinglass in water , the design then pencilled on with asphaltum , the superfluous gold re- moved with a dossil of cotton dipped in water , which leaves intact the parts touched with asphaltum , and the latter finally 52 ...
Pagina 53
... solution is never clear . Dr. Bolley has recently published some remarks on this subject , which may be useful . If India rubber be cut into small pieces and digested in sulphuret of carbon , a jelly will be formed ; this must be ...
... solution is never clear . Dr. Bolley has recently published some remarks on this subject , which may be useful . If India rubber be cut into small pieces and digested in sulphuret of carbon , a jelly will be formed ; this must be ...
Pagina 57
... solution , over which the former substances exert no power . It appears that the more porosity a filtering medium possesses in itself , the more rapidly does it filter , and the greater is the effect it produces on the water . The ...
... solution , over which the former substances exert no power . It appears that the more porosity a filtering medium possesses in itself , the more rapidly does it filter , and the greater is the effect it produces on the water . The ...
Overige edities - Alles bekijken
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art Volledige weergave - 1857 |
Veelvoorkomende woorden en zinsdelen
action alkali American ammonia animal apparatus appears atmosphere bitumen body butyric acid carbonic acid chemical cloth coal colloid color comet condition contains crystalline deposits depth Diluvian discovery earth effect electricity engines existence experiments fact feet fluid formation geological glass gutta percha heat hundred hydrogen inches increase iron known less light lignite liquid magnetic manufacture mass matter ment metal meteors miles mineral nature nitric acid nitrogen North observed obtained ordinary organic oxide oxygen ozone paper passed phenomena phosphoric acid plants plate portion pounds present pressure produced Prof Professor quantity R. I. Murchison rays recently remarkable rocks shells shot side silica Silurian soil solution species specimens spectrum steel strata substances sulphuric sulphuric acid surface temperature thickness tion tube vapor vegetable vessel weight wire wrought iron
Populaire passages
Pagina ix - I first entered this city, the whole of the machinery was executed by hand. There were neither planing, slotting, nor shaping machines, and, with the exception of very imperfect lathes and a few drills, the preparatory operations of construction were effected entirely by the hands of the workmen.
Pagina 150 - The result of this would be a state of universal rest and death, if the universe were finite and left to obey existing laws. But as no limit is known to the extent of matter, science points rather to an endless progress through an endless space of action, involving the transformation of potential energy through palpable motion into heat, than to a single finite mechanism, running down like a clock and stopping forever.
Pagina xii - THE BOYDEN PREMIUM URIAH A. BOYDEN, ESQ., of Boston, Mass., has deposited with THE FRANKLIN INSTITUTE the sum of one thousand dollars, to be awarded as a premium to "Any resident of North America who shall determine by experiment whether all rays of light,* and other physical rays, are or are not transmitted with the same velocity.
Pagina 201 - The colloidal is, in fact, a dynamical state of matter; the crystalloidal being the statical condition. The colloid possesses Energia. It may be looked upon as the probable primary source of the force appearing in the phenomena of vitality.