Science News-letter, Volume 14Science Service, 1928 |
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Page 144 - We have had some experience of it ; several of our young people were formerly brought up at the colleges of the northern provinces; they were instructed in all your sciences ; but, when they came back to us, they were bad runners, ignorant of every means of living in the woods, unable to bear either cold or hunger, knew neither how to build a cabin, take a deer, nor kill an enemy, spoke our language imperfectly, were therefore neither fit for hunters, warriors, nor counsellors ; they were totally...
Page 248 - It is hardly necessary to add that anything which any insulated body, or system of bodies, can continue to furnish without limitation, cannot possibly be a material substance; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner the Heat was excited and communicated in these experiments, except it be MOTION.
Page 365 - And the children of Joseph said, The hill is not enough for us : and all the Canaanites that dwell in the land of the valley have chariots of iron, both they who are of Beth-shean and her towns, and they who are of the valley of Jezreel.
Page 248 - By meditating on the results of all these experiments, we are naturally brought to that great question which has so often been the subject of speculation among philosophers, namely, What is heat — is there any such thing as an igneous fluid ? Is there anything that...
Page 163 - Besides, we have a notable and splendid argument to remove the scruples of those who can tolerate the revolution of the planets round the Sun in the Copernican system, yet are so disturbed by the motion of one Moon about the Earth, while both accomplish an orbit of a year's length about the Sun, that they consider that this theory of the...
Page 10 - In this way the action of each particular coil becomes directed very nearly at right angles to the axis of the bar, and consequently the effect is the greatest possible. This principle is of much greater importance when large bars are used. The advantage of a greater conducting power from using several wires might in a less degree be obtained by substituting for them one large wire of equal sectional area ; but in this case the obliquity of the spiral would be much greater, and consequently the magnetic...
Page 144 - We are, however, not the less obliged by your kind offer, though we decline accepting it: and to show our grateful sense of it, if the gentlemen of Virginia will send us a dozen of their sons, we will take great care of their education, instruct them in all we know, and make men of them.
Page 96 - In our century science is the soul of the prosperity of nations and the living source of all progress. Undoubtedly the tiring discussions of politics seem to be our guide- — empty appearances! What really leads us forward is a few scientific discoveries and their application.
Page 199 - The phenomenon was independent of the presence of air ; I found that it took place when the alkali was in the vacuum of an exhausted receiver. The substance was likewise produced from potash fused by means of a lamp, in glass tubes confined by mercury, and furnished with hermetically inserted platina wires by which the electrical action was transmitted. But this operation could not be carried on for any considerable time -, the glass was rapidly dissolved by the action of the alkali, and this substance...
Page 214 - ... 4. The practical recognition of the necessity for world biological controls, for example, of population and disease; 5. The support of a minimum standard of individual freedom and welfare in the world; and 6.