The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Količina 15Gould, Kendall, and Lincoln, 1865 |
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Zadetki 1–5 od 76
Stran iv
... equal distance . In thus glancing at the history of railways , we may observe how promptly the inventive faculty of man supplies the device which the circumstances of the moment require . No sooner is a road formed fit for wheeled ...
... equal distance . In thus glancing at the history of railways , we may observe how promptly the inventive faculty of man supplies the device which the circumstances of the moment require . No sooner is a road formed fit for wheeled ...
Stran viii
... equal to that furnished by the bark of the same species when grown in South America ; and it had also been ascertained that quinine might be ob- tained in small quantities from the leaves . The successful culture of the Cinchona plants ...
... equal to that furnished by the bark of the same species when grown in South America ; and it had also been ascertained that quinine might be ob- tained in small quantities from the leaves . The successful culture of the Cinchona plants ...
Stran 20
... equal movement to the screw , which be- comes not only the propelling but also the guiding power of the ship . One of these screws , fitted to a naval steamer of sixty - horse power , has been tried upon the Thames , and the result is ...
... equal movement to the screw , which be- comes not only the propelling but also the guiding power of the ship . One of these screws , fitted to a naval steamer of sixty - horse power , has been tried upon the Thames , and the result is ...
Stran 21
... equal 70,000 cubic yards of water , which is lifted to a height of twenty- one feet , or to 1,470,000 cubic yards lifted to a height of one foot . Now , since one cubic yard of water weighs about 1683 pounds , 1,470,000 cubic yards ...
... equal 70,000 cubic yards of water , which is lifted to a height of twenty- one feet , or to 1,470,000 cubic yards lifted to a height of one foot . Now , since one cubic yard of water weighs about 1683 pounds , 1,470,000 cubic yards ...
Stran 25
... equal to the size of the nail . The mercury spreads imme- diately , penetrates the amalgam to where it was cut off with the knife , and the required piece may now be lifted and removed to the place to be repaired . This is the most ...
... equal to the size of the nail . The mercury spreads imme- diately , penetrates the amalgam to where it was cut off with the knife , and the required piece may now be lifted and removed to the place to be repaired . This is the most ...
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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 islands length less light lime 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 proportion 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 79 - ... melt in air, — the flux of power is eternally the same. It rolls in music through the ages, and all terrestrial energy, — the manifestations of life, as well as the display of phenomena, are but the modulations of its rhythm.
Stran 172 - 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 323 - Star be observed to the East and the other to the West of the Meridian, the Time will be determined with rather more certainty.
Stran 81 - In 1845 he published his Memoir on " Organic Motion," and applied the mechanical theory of heat in the most fearless and precise manner to vital processes. He also embraced the other natural agents in his chain of conservation. In 1853 Mr. Waterston proposed, independently, the meteoric theory of the sun's heat, and in 1854 Professor William Thomson applied his admirable mathematical powers to the development of the theory; but six years previously...
Stran 229 - Assuming 4,000 feet as the greatest depth at which it will ever be possible to carry on mining operations, and rejecting all seams of less than two feet in thickness, the entire quantity of available coal existing in these islands has been calculated to amount to about...
Stran 140 - The rain quits the ocean as vapour; it returns to it as water. How are the vast stores of heat, set free by the change from the vaporous to the liquid condition, disposed of ? Doubtless in great part they are wasted by radiation into space. Similar remarks apply to the cumuli of our latitudes. The warmed air, charged with...