Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
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Zadetki 1–5 od 89
Stran v
... become aware of the want of sufficient difference between the letters we employ . " National Uniformity of Weights and Measures . — “ Another subject of a social character which demands our consideration is the much - de- bated question ...
... become aware of the want of sufficient difference between the letters we employ . " National Uniformity of Weights and Measures . — “ Another subject of a social character which demands our consideration is the much - de- bated question ...
Stran viii
... become one of the products of Australia . -- Steam Cultivation . · - A " General Steam Cultivation Company " has been started in London , with a capital of over a million dollars , whose object is announced to be to purchase , keep on ...
... become one of the products of Australia . -- Steam Cultivation . · - A " General Steam Cultivation Company " has been started in London , with a capital of over a million dollars , whose object is announced to be to purchase , keep on ...
Stran xiii
... become spent fish , the shoal rapidly disappears , withdrawing in all probability into deep water at no great distance from the coast . There is no positive evidence as to the ultimate fate of the spent herrings ; but there is much to ...
... become spent fish , the shoal rapidly disappears , withdrawing in all probability into deep water at no great distance from the coast . There is no positive evidence as to the ultimate fate of the spent herrings ; but there is much to ...
Stran 21
... become unable to withstand the ordinary working pressure . Various hypotheses , set up to account for explosions , were worse than useless because they diverted attention from the real source of danger . He believed that one of these hy ...
... become unable to withstand the ordinary working pressure . Various hypotheses , set up to account for explosions , were worse than useless because they diverted attention from the real source of danger . He believed that one of these hy ...
Stran 27
... becomes as hard as a rock ; not a drop of rain will go through it , and if a drop lodges on it , blame your- self for not having made the surface even ; but a moderate fall is suffi- cient with such an impenetrable material . Not a weed ...
... becomes as hard as a rock ; not a drop of rain will go through it , and if a drop lodges on it , blame your- self for not having made the surface even ; but a moderate fall is suffi- cient with such an impenetrable material . Not a weed ...
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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.