Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
Iz vsebine knjige
Zadetki 1–5 od 40
Stran 28
... hydrogen , or common gas , in the place of hydrogen . The rendering of these substitutes applicable for the production of the oxy - hydrogen light- a project which at first seems chimerical - is explained by the inventor as follows ...
... hydrogen , or common gas , in the place of hydrogen . The rendering of these substitutes applicable for the production of the oxy - hydrogen light- a project which at first seems chimerical - is explained by the inventor as follows ...
Stran 29
... hydrogen light . When placed in the focus of a parabolic reflector , such as are in present use upon locomotive engines , it is in- creased to a ball of light twenty inches in diameter , or to the size of the mirror . The flow of air ...
... hydrogen light . When placed in the focus of a parabolic reflector , such as are in present use upon locomotive engines , it is in- creased to a ball of light twenty inches in diameter , or to the size of the mirror . The flow of air ...
Stran 46
... hydrogen gas . The saving of fuel which has been effected by this arrangement amounts to from forty to fifty per cent . In the application to re - heat- ing and puddling furnaces , a saving of iron has been effected , owing to the ...
... hydrogen gas . The saving of fuel which has been effected by this arrangement amounts to from forty to fifty per cent . In the application to re - heat- ing and puddling furnaces , a saving of iron has been effected , owing to the ...
Stran 48
... hydrogen and light car- buretted hydrogen . These are comparatively innocuous , and this weight of evidence is , that the gun is less injured by repeated charges of gun - cotton than of gunpowder , and that the men in casemates suffer ...
... hydrogen and light car- buretted hydrogen . These are comparatively innocuous , and this weight of evidence is , that the gun is less injured by repeated charges of gun - cotton than of gunpowder , and that the men in casemates suffer ...
Stran 131
... hydrogen flame , while attended with intense heat , was endowed with very little chemical action . A prepared collodion plate exposed to this light for twenty seconds gave a very faint picture . But when the flame was thrown on lime ...
... hydrogen flame , while attended with intense heat , was endowed with very little chemical action . A prepared collodion plate exposed to this light for twenty seconds gave a very faint picture . But when the flame was thrown on lime ...
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Pogosti izrazi in povedi
action ammonia animals appear aqueous vapor astronomers atmosphere atoms Aye-Aye body British Association carbonic acid Carboniferous cause cent chemical color containing depth Devonian diameter discovery distance earth effect electric equal existence experiments exposed fact feet fire French gases give glass graphite gun-cotton gunpowder gypsum heat hundred hydrochloric acid hydrogen inches insects iron length less light liquid London magnesium manufacture mass matter metal miles minute moon mountains nature nearly nitrogen observed obtained organic oxygen paper passed phenomena photographic plants plate portion pounds present pressure produced Prof putrefaction quantity rays recent remarkable result rifled rock rubidium safe salt shot side silica soda solar solar parallax solid species spectrum stars steam substance sulphur sulphuric acid sun's surface temperature thallium thickness tion transmutation of species tube velocity vessel weight whole
Priljubljeni odlomki
Stran 170 - It is conceivable that the various kinds of matter, now recognized as different elementary substances, may possess one and the same ultimate or atomic molecule existing in different conditions of movement. The essential unity of matter is an hypothesis in harmony with the equal action of gravity upon all bodies. We know the anxiety with which this point was investigated by Newton, and the care he took to ascertain that every kind of substance, ' metals, stones, woods, grain, salts, animal substances,'...
Stran 256 - As with an invisible trowel, the mass is divided and subdivided into smaller and smaller portions, until it is reduced to an aggregation of granules not too large to build withal the finest fabrics of the nascent organism. And, then, it is as if a delicate finger traced out the line to be occupied by the spinal column, and moulded the contour of the body...
Stran 306 - Thus, by means of repeated selection alone, the length of the ears has been doubled, their contents nearly trebled, and the " tillering" power of the seed increased five-fold.
Stran 288 - The Negro exhibits permanently the imperfect brain, projecting lower jaw, and slender bent limbs of a Caucasian child some considerable time before the period of its birth. The aboriginal American represents the same child nearer birth. The Mongolian is an arrested infant newly born. And so forth.
Stran 77 - The natural philosopher of to-day may dwell amid conceptions which beggar those of Milton. So great and grand are they, that, in the contemplation of them, a certain force of character is requisite to preserve us from bewilderment.