The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould, Kendall, and Lincoln, 1870 |
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Результати 6-10 із 87
Сторінка 30
... produced and laid down . It is estimated that from 40,000 to 50,000 tons of steel rails are in use on our various railways . Among the users of steel rails are the Hudson River , Erie , and Pennsylvania Railway , - 10,000 tons or more ...
... produced and laid down . It is estimated that from 40,000 to 50,000 tons of steel rails are in use on our various railways . Among the users of steel rails are the Hudson River , Erie , and Pennsylvania Railway , - 10,000 tons or more ...
Сторінка 33
... produce the cheapest possible article , and to devise means of manufactur- ing at a low price what is , to all appearances , a clean - looking rail ; to do this , he carefully studies the character of his iron , and so manipulates it as ...
... produce the cheapest possible article , and to devise means of manufactur- ing at a low price what is , to all appearances , a clean - looking rail ; to do this , he carefully studies the character of his iron , and so manipulates it as ...
Сторінка 34
... producing a good and serviceable rail from such inferior materials , that the hard , cold - short iron should form ... produced either too brittle , and therefore dangerous , or too pliable , and therefore less capable of enduring the ...
... producing a good and serviceable rail from such inferior materials , that the hard , cold - short iron should form ... produced either too brittle , and therefore dangerous , or too pliable , and therefore less capable of enduring the ...
Сторінка 42
... produce a given pressure than is required by steam , it seems to possess a combi- nation of properties favorable to the production of an economical motive power . Ammonia , like several other of the gases called permanent , may be ...
... produce a given pressure than is required by steam , it seems to possess a combi- nation of properties favorable to the production of an economical motive power . Ammonia , like several other of the gases called permanent , may be ...
Сторінка 43
... produce a given pressure , or from the higher pressure obtain- able at a given temperature . These circumstances are ... produces additional heat . In this manner an extreme depression of temperature is prevented , but it is practi ...
... produce a given pressure , or from the higher pressure obtain- able at a given temperature . These circumstances are ... produces additional heat . In this manner an extreme depression of temperature is prevented , but it is practi ...
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The Annual of Scientific Discovery, Or, Year-book of Facts in Science ..., Том 5 Повний перегляд - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in Science ..., Том 5 Повний перегляд - 1854 |
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acetic acid action American ammonia animals apparatus appears atmosphere battery beds bridge cable carbon carbonic acid cause cent centimetres centre charcoal chemical chloride coal color Comptes Rendus connected containing copper corona cubic cubic metres cylinder depth diameter discovery dissolved eclipse effect electric engine eocene experiments fact feet fibre flame fossil French gases glass glycerine gun-cotton guns heat hydrochloric acid hydrogen inches Indian iron length light lime liquid magnet matter metal method metres miles miocene mixture nitric acid observations obtained ordinary oxide oxygen palladium paper passed placed plants plate platinum polariscope polarization potash precipitate present pressure produced Prof quantity railway rays River salt sandarac sodium solution spark species specific gravity spectrum steam steel rails substance sulphate sulphuric acid surface temperature thick tion tons tube tunnel vapor vibrations weight wire zinc zirconia
Популярні уривки
Сторінка 269 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
Сторінка i - ANNUAL OF SCIENTIFIC DISCOVERY ; or, Year Book of Facts in Science and Art, exhibiting the most important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Meteorology, Zoology, Botany, Mineralogy, Geology, Geography, Antiquities, etc.
Сторінка 136 - It consists in subjecting the vapours of volatile liquids to the action of concentrated sunlight, or to the concentrated beam of the electric light.