Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1863 |
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Ergebnisse 1-5 von 69
Seite xi
... substances practically available for paper - stock is , first , that the percentage of fibre contained in them is comparatively small ; and , second , that the labor required to collect and prepare them can be more profitably given to ...
... substances practically available for paper - stock is , first , that the percentage of fibre contained in them is comparatively small ; and , second , that the labor required to collect and prepare them can be more profitably given to ...
Seite 36
... substance ( this cylinder being made to revolve in contact with a tracing - point ) , that when the electric current passes , intermit- tent currents are established , whereby the diamonds are withdrawn from their work at the proper ...
... substance ( this cylinder being made to revolve in contact with a tracing - point ) , that when the electric current passes , intermit- tent currents are established , whereby the diamonds are withdrawn from their work at the proper ...
Seite 45
... substance of the rock is ground away in the hole , as well as pulverized by impact . Six of these borers , with the machinery for driving them forwards , six reservoirs containing water , which is forced in a constant jet into the hole ...
... substance of the rock is ground away in the hole , as well as pulverized by impact . Six of these borers , with the machinery for driving them forwards , six reservoirs containing water , which is forced in a constant jet into the hole ...
Seite 80
... substances , or residue , obtained on the explosion of powder , particularly in a confined space , such as the barrel of a gun . In the old smooth - bore cannon or small - arms this residue was carried away , to a very great extent , on ...
... substances , or residue , obtained on the explosion of powder , particularly in a confined space , such as the barrel of a gun . In the old smooth - bore cannon or small - arms this residue was carried away , to a very great extent , on ...
Seite 81
... India commenced , the subject was receiving investigation , and , after very searching trials , beeswax was found to be the most suitable ma- terial . Though so very dissimilar to the substances generally MECHANICS AND USEFUL ARTS . 81.
... India commenced , the subject was receiving investigation , and , after very searching trials , beeswax was found to be the most suitable ma- terial . Though so very dissimilar to the substances generally MECHANICS AND USEFUL ARTS . 81.
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acetic acid action alumina ammonia amount aniline animals apparatus appear applied armor-plates astronomer atmosphere body British carbonic acid cast iron cent charcoal chemical cloth color comet containing copper degrees diameter discovery distance earth effect electric English engraving exhibited existence experiments explosion fact feet fibre force furnace heat hundred hydrochloric acid hydrogen inches increased iron lakes light lines liquid London machine magnetism manufacture mass matter ments metal metres miles minute motion naphtha nature nitric acid nitrogen observed obtained organic oxide oxygen paper passed phenomena phosphorus plants plates pollinia portion pounds present pressure produced Prof projectile quantity recently remarkable resistance rifled salt shell ship Shoeburyness shot side solar solid solution specimens spectrum stars steam steel stone strychnia substance sulphuric acid surface target temperature thallium thick tion tons tube vapor velocity vessel weight wrought iron
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Seite 140 - In this ascension, six pigeons were taken up. One was thrown out at the height of three miles ; it extended its wings and dropped...
Seite 171 - In order to explain,' he says, ' the occurrence of the dark lines in the solar spectrum, we must assume that the solar atmosphere encloses a luminous nucleus, producing a continuous spectrum, the brightness of which exceeds a certain limit. The most probable supposition which can be made respecting the sun's constitution is, that it consists of a solid or liquid nucleus, heated to a temperature of the brightest whiteness, surrounded by an atmosphere of somewhat lower temperature. This supposition...