The Mechanics' Magazine, Museum, Register, Journal, and Gazette, 43. kötetM. Salmon, 1845 |
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6. oldal
... greater or less than ninety degrees , the cosines of angles between 90 ° and 180 ° being negative . The same formula , it is manifest , will apply to the determination of the distance between the sun and moon , or between the moon and a ...
... greater or less than ninety degrees , the cosines of angles between 90 ° and 180 ° being negative . The same formula , it is manifest , will apply to the determination of the distance between the sun and moon , or between the moon and a ...
7. oldal
... greater than a right angle , it agrees with the second case . Hence it is- log . cos . 8.984840 ... log . cos . 9.714352 log . sin . 9.932151 log . cos . 9.818363 log . sin . 9.876700 ... therefore , we have b = 71 ° 39′30 ′′ -4299'5 ...
... greater than a right angle , it agrees with the second case . Hence it is- log . cos . 8.984840 ... log . cos . 9.714352 log . sin . 9.932151 log . cos . 9.818363 log . sin . 9.876700 ... therefore , we have b = 71 ° 39′30 ′′ -4299'5 ...
11. oldal
... greater than had been stated by the Bishop of Norwich . If his memory did not deceive him - while in Lon- don the annual depth was only 23 inches , in Keswick it was no less than 60.-Mr. ROBERTS observed , that the discrepancies in the ...
... greater than had been stated by the Bishop of Norwich . If his memory did not deceive him - while in Lon- don the annual depth was only 23 inches , in Keswick it was no less than 60.-Mr. ROBERTS observed , that the discrepancies in the ...
20. oldal
... greater than 2 , the number or quantity repre- senting the solidity is greater than that which expresses or represents the su- perficies . If the annulus AB C , fig . 18 , be made to revolve about the straight line E F , in the same ...
... greater than 2 , the number or quantity repre- senting the solidity is greater than that which expresses or represents the su- perficies . If the annulus AB C , fig . 18 , be made to revolve about the straight line E F , in the same ...
21. oldal
... greater diameter of the revolving annulus , subtract its width or the thickness of metal which it contains ; multiply the difference by the said thickness of metal , and again , by the inner diameter of the ring added to the greater ...
... greater diameter of the revolving annulus , subtract its width or the thickness of metal which it contains ; multiply the difference by the said thickness of metal , and again , by the inner diameter of the ring added to the greater ...
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acid angle apparatus application atmospheric railways boilers bottom Braidwood Captain carriage centre circle civil engineer claim Claviole coal condenser construction copper cylinder described diameter distance effect employed engine equal expense experiments fire frustrum fuel furnace Galignani given heat hour improvements inches increased invention iron July knots length less light Liverpool locomotive London LONDON FIRE BRIGADE machine machinery Magazine manufacture means Mechanics ment Messrs metal meter method miles miles per hour minute mode motion obtained organzine paddles paper pass patent pipe piston plane plates present pressure principle produced pump purpose quantity rail render sails Samuel Bentham SCREW PROPELLING shaft ship side six months solution speed square steam steamers stocking frame stroke sulphuric acid surface tain tion Tofield tons train Trinity House tube tunnel vacuum vessels valve velocity wheel wind
Népszerű szakaszok
339. oldal - ... shut up, intercourse suspended, the sick abandoned, mothers weeping in terror over their children. The Stoic assures the dismayed population that there is nothing bad in the small-pox, and that to a wise man disease, deformity, death, the loss of friends, are not evils. The Baconian takes out a lancet and begins to vaccinate.
339. oldal - The Baconian constructs a diving-bell, goes down in it, and returns with the most precious effects from the wreck. It would be easy to multiply illustrations of the difference between the philosophy of thorns and the philosophy of fruit, the philosophy of words and the philosophy of works.
336. oldal - Then after divers meetings and consults of our whole number, to consider of the former labours and collections, we have three that take care, out of them, to direct new experiments, of a higher light, more penetrating into nature than the former. These we call lamps..
339. oldal - What then was the end which Bacon proposed to himself? It was, to use his own emphatic expression, " fruit." It was the multiplying of human enjoyments and the mitigating of human sufferings. It was
336. oldal - We have also engine-houses, where are prepared engines and instruments for all sorts of motions. There we imitate and practise to make swifter motions than any you have, either out of your muskets or any engine that you have...
336. oldal - We have three that try new experiments. Such as themselves think good. These we call pioneers or miners. We have three that draw the experiments of the former four into titles and tables, to give the better light for the drawing of observations and axioms out of them. These we call compilers.
337. oldal - And this we do also: we have consultations, which of the inventions and experiences which we have discovered shall be published, and which not: and take all an oath of secrecy for the concealing of those which we think fit to keep secret: though some of those we do reveal sometimes to the State, and some not.
114. oldal - The surface of a sphere is equal to the convex surface of the circumscribing cylinder ; and the solidity of the sphere is two thirds the solidity of the circumscribing cylinder.
309. oldal - ... whole being constructed, arranged, and combined, in the manner and for the purpose herein set forth.
66. oldal - ... weight when their shafts were uniform ; and that columns tapering from the bottom to the top were only capable of bearing weights due to the smallest part of their section, though the larger end might serve to prevent lateral thrusts. This last remark applies, too, to the Egyptian columns, the strength of the column being only that of the smallest part of the section. From the two series of experiments, it appeared that the strength of the short column is nearly in proportion to the area of the...