Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
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Zadetki 1–5 od 63
Stran vii
... glass ( 18 inches in diameter ) , with which this most interesting discovery was made , was Mr. Clark's own manufacture , and was intended for the observatory of the University of Mississippi . In consequence , however , of the breaking ...
... glass ( 18 inches in diameter ) , with which this most interesting discovery was made , was Mr. Clark's own manufacture , and was intended for the observatory of the University of Mississippi . In consequence , however , of the breaking ...
Stran 25
... glasses has hitherto been considered a very difficult operation . A new and very simple method , however , has been described before the Polytechnic Society of Leipsic . It is as follows : - - Clean the bare portion of the glass by ...
... glasses has hitherto been considered a very difficult operation . A new and very simple method , however , has been described before the Polytechnic Society of Leipsic . It is as follows : - - Clean the bare portion of the glass by ...
Stran 26
... glass presents the same appearance as a new one.— Builder . CEMENT FOR ROOMS . A recent invention by M. Sorel , of Paris , is described to consist in the discovery of a property possessed by oxychloride of zinc , which renders it ...
... glass presents the same appearance as a new one.— Builder . CEMENT FOR ROOMS . A recent invention by M. Sorel , of Paris , is described to consist in the discovery of a property possessed by oxychloride of zinc , which renders it ...
Stran 27
... glass in a window . The workman then placed the barrel of the musket upon a rest in such a position that the reflected line in the mirror could be again reflected , through the bore of the barrel , to his eye , -the inner surface of the ...
... glass in a window . The workman then placed the barrel of the musket upon a rest in such a position that the reflected line in the mirror could be again reflected , through the bore of the barrel , to his eye , -the inner surface of the ...
Stran 28
... glass , which is furnished with a transparent slate , having two parallel lines drawn across it . The only purpose subserved by the mirror was that of rendering the operation of holding the barrel less tiresome , it being easier to keep ...
... glass , which is furnished with a transparent slate , having two parallel lines drawn across it . The only purpose subserved by the mirror was that of rendering the operation of holding the barrel less tiresome , it being easier to keep ...
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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.