Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
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Zadetki 1–5 od 55
Stran viii
... direction of proper authori- ties , is being pursued vigorously , and with great success . Mr. Edward Wilson , of Melbourne , Australia , in a report on the subject , states that the English skylark and the thrush were breeding freely ...
... direction of proper authori- ties , is being pursued vigorously , and with great success . Mr. Edward Wilson , of Melbourne , Australia , in a report on the subject , states that the English skylark and the thrush were breeding freely ...
Stran 15
... direction . Three of the collectors are located upon the right bank of the Seine , and three upon the left bank . The united length of the former is 8.600 metres ; of the latter , 9.200 metres . The ratio of the section to be given to ...
... direction . Three of the collectors are located upon the right bank of the Seine , and three upon the left bank . The united length of the former is 8.600 metres ; of the latter , 9.200 metres . The ratio of the section to be given to ...
Stran 46
... direction of the currents is reversed by a change of the valve lever , the heat before deposited in the one pair of regenerators is now communicated to the air and gas coming in , while the waste heat replenishes the second pair of ...
... direction of the currents is reversed by a change of the valve lever , the heat before deposited in the one pair of regenerators is now communicated to the air and gas coming in , while the waste heat replenishes the second pair of ...
Stran 57
... direction , and free from the lateral resistance which the conical and round shot meet with . I venture also to state that the suddenness of the impact of such a body has much to do with the effect ; it would seem that time is an ...
... direction , and free from the lateral resistance which the conical and round shot meet with . I venture also to state that the suddenness of the impact of such a body has much to do with the effect ; it would seem that time is an ...
Stran 58
... direction about six inches of metal before reaching the plain plate . The advantages of the plan proposed are , besides the protection of the ships , the reduction of the weight of armor much below that contem- plated for the new ships ...
... direction about six inches of metal before reaching the plain plate . The advantages of the plan proposed are , besides the protection of the ships , the reduction of the weight of armor much below that contem- plated for the new ships ...
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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.