Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
Iz vsebine knjige
Zadetki 1–5 od 86
Stran ix
... matter . He states , that the cost of preparing land for roots was , with steam , $ 2.88 ; with horses , $ 10.03 ; for barley two years , $ 2.16 with steam against $ 5.05 by horse power ; four years for wheat , $ 50.20 by steam against ...
... matter . He states , that the cost of preparing land for roots was , with steam , $ 2.88 ; with horses , $ 10.03 ; for barley two years , $ 2.16 with steam against $ 5.05 by horse power ; four years for wheat , $ 50.20 by steam against ...
Stran x
... matter has been worked up by stages into organic compounds . Thus Berthelot , taking carbon and sulphur , combines these into bisulphide of carbon , a mo- bile , ethereal liquid ; and therefore , by the mutual reaction of copper ...
... matter has been worked up by stages into organic compounds . Thus Berthelot , taking carbon and sulphur , combines these into bisulphide of carbon , a mo- bile , ethereal liquid ; and therefore , by the mutual reaction of copper ...
Stran xi
... matter , and obtained artificially grape sugar ; and has converted oil of turpentine into ordinary camphor and Borneo camphor ; whilst , in conjunction with De Luca , he has prepared artificially one of the chief constituents of oil of ...
... matter , and obtained artificially grape sugar ; and has converted oil of turpentine into ordinary camphor and Borneo camphor ; whilst , in conjunction with De Luca , he has prepared artificially one of the chief constituents of oil of ...
Stran xii
... matter , I answer , one of per- plexed doubt , shaping itself into only one conviction that deserves the name of an opinion , namely , that quite sufficient cause has been shown to demand further patient and careful inquiry from those ...
... matter , I answer , one of per- plexed doubt , shaping itself into only one conviction that deserves the name of an opinion , namely , that quite sufficient cause has been shown to demand further patient and careful inquiry from those ...
Stran 16
... matter - nay , even stones - to a distance of 100 metres . There the boat finds it again as it advances , and drives it further and further , till the orifice of the emissary is reached . Four boats perform this work , and it takes ...
... matter - nay , even stones - to a distance of 100 metres . There the boat finds it again as it advances , and drives it further and further , till the orifice of the emissary is reached . Four boats perform this work , and it takes ...
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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.