Technology Quarterly, Volume 2

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students, 1889
 

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Página 214 - A boy is in the parlour what the pit is in the playhouse; independent, irresponsible, looking out from his corner on such people and facts as pass by, he tries and sentences them on their merits, in the swift summary way of boys, as good, bad, interesting, silly, eloquent, troublesome.
Página 107 - ... devoted land. When the destined time arrives, he enters upon action, and, as a haughty monarch ascends his throne, the pedagogue mounts his awful great chair, and dispenses right and justice through his whole empire. His obsequious subjects execute the imperial mandates with cheerfulness, and think it their high happiness to be employed in the service of the emperor. Sometimes paper, sometimes his penknife, now birch, now arithmetic. now a ferule, then ABC, then scolding, then flattering, then...
Página 106 - It is further ordered, That where any town shall increase to the number of one hundred families or householders, they shall set up a grammar school, the master thereof being able to instruct youth so far as they may be fitted for the university...
Página 28 - B; finally, a is the volume of one unit of weight of water. It is assumed that neither tube gives heat to the steam or receives heat from it, and that the friction of the fluid on the sides of the wall can be neglected. The heat Q is supposed to be given at the orifice, it is commonly assumed, to be zero, in which case the flow is said to be adiabatic. At and near the orifice eddies and irregular currents are likely to be of sufficient importance to prevent us from knowing the condition of the steam...
Página 253 - The instruments used were similar to those previously employed by Messrs. Patterson and Tucker, and described in the latter of the two articles just referred to. The electrodynamometer was calibrated by means of a Hartmann galvanometer, using reversals in the ordinary manner so as by four readings to eliminate the effect of the earth's magnetism on the suspended coil. The microphone contact was set into vibration by the sound of a stopped organ-pipe (C« of 512 vibrations) kept as constant as possible...
Página 256 - ... p', p", etc. will be proportioned to Ac, Ac', Ac", etc., and this is precisely the curve which is obtained in the experiments. The explanation just offered seems therefore to be the true one. The matter was still further tested by carrying out a set of experiments similar to those already described, except that the variations in normal pressure were brought about by means of a spring instead of by adding weights. In such a case the successive values of AJB in the curve (Fig.
Página 268 - II., and III., that the value of the maximum induced current for a given excursion of the diaphragm is approximately the same with all the three cores used, and that the same is true as to the strength of field corresponding to this maximum current. Moreover, saturation curves constructed for the several cores showed that in all cases the magnet was still very far removed even from half-saturation when the maximum induced current was obtained. From these facts it appears that the degree of saturation...
Página 254 - Faint, good quality. 4.0 .33 4.5 .21 5.0 .19 The curve shows a rapid rise at first, as the mass of the anvil electrode, and with it the pressure between the electrodes, is increased, which rise soon reaches a maximum, the curve then falling off rapidly at first, more slowly afterwards. The nature of the curve is interesting, and requires explanation. In his article already referred to, Mr.
Página 274 - ... and 3, is probably caused by the want of both magnetic and mechanical continuity in the material of the multiple plate formed by the several diaphragms us-ed. In those cases where steel diaphragms were employed, there was always a notable induced current, even when the reading of the magnetometer was zero. This was probably due to a slight residual magnetization of the diaphragms. The results stated in this paper may serve to explain a phenomenon which has seemed somewhat obscure. Frequent attempts...
Página 110 - ... would have been thought strange and unnatural restrictions a hundred years ago. Indeed, this desire to control and limit the government is shown throughout the general character of these new constitutions. It extends in some respects, though in a limited degree, to the powers of the Executive and Judiciary, and it forms a striking contrast to the- generous confidence which the people placed in their officers a century ago, and the liberal powers entrusted to them. The early instruments were usually...

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