Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
Iz vsebine knjige
Zadetki 1–5 od 77
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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Pogosti izrazi in povedi
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.