Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
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Pagina x
... oxygen , by electric discharges , into nitric acid , and then by the successive mutual reaction of this nitric acid with tin , hydrochloric acid , and black lead , and lime ( or oxide of lead ) , he obtains a complicated organic ...
... oxygen , by electric discharges , into nitric acid , and then by the successive mutual reaction of this nitric acid with tin , hydrochloric acid , and black lead , and lime ( or oxide of lead ) , he obtains a complicated organic ...
Pagina 28
... oxygen and about three parts of nitrogen gas ; hence it would require four parts of air to give the amount of oxygen required for illuminating purposes ; i . e . to obtain one part of oxygen four feet of air would be needed , as three ...
... oxygen and about three parts of nitrogen gas ; hence it would require four parts of air to give the amount of oxygen required for illuminating purposes ; i . e . to obtain one part of oxygen four feet of air would be needed , as three ...
Pagina 29
... oxygen is afforded , and all the heat generated is saved and concentrated upon the lime . " Herein is the principal feature of Dr. Smith's invention . The invention is practically carried out for railway ( locomotive ) lights the ...
... oxygen is afforded , and all the heat generated is saved and concentrated upon the lime . " Herein is the principal feature of Dr. Smith's invention . The invention is practically carried out for railway ( locomotive ) lights the ...
Pagina 36
... oxygen of the air which would otherwise act on the iron . Chemical compositions are prepared which will , by absorbing the oxygen , perfectly protect the iron from corrosion or rust , even in the presence of air and water . Varieties of ...
... oxygen of the air which would otherwise act on the iron . Chemical compositions are prepared which will , by absorbing the oxygen , perfectly protect the iron from corrosion or rust , even in the presence of air and water . Varieties of ...
Pagina 45
... oxygen in the can is said to be consumed , because it will unite with the hot iron wire and form an oxide . - Roasting Coffee . In order to prevent the loss of aroma , W. Sym- ington , of London , roasts coffee in a close vessel , which ...
... oxygen in the can is said to be consumed , because it will unite with the hot iron wire and form an oxide . - Roasting Coffee . In order to prevent the loss of aroma , W. Sym- ington , of London , roasts coffee in a close vessel , which ...
Overige edities - Alles bekijken
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1859 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1852 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1858 |
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Populaire passages
Pagina 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,'...
Pagina 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...
Pagina 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.
Pagina 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.
Pagina 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.