Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers, Metallurgists, Mine Proprietors, Engineers, Shipbuilders, Scientists, Capitalists ..., Volumen13Perry Fairfax Nursey Knight and Lacey, 1830 |
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Página 14
... figures in well - known expres- sion for the motive force ( i.e. ) MW . I admit that my last communication has nothing whatever to do with the question of " the quantity of mechanic force equal to the resistance caused by friction ...
... figures in well - known expres- sion for the motive force ( i.e. ) MW . I admit that my last communication has nothing whatever to do with the question of " the quantity of mechanic force equal to the resistance caused by friction ...
Página 19
... figure . It is important also to know , that the voussoirs will begin to slide from their positions at an angle of 30--5 ° , a fact which naturally directs attention to those parts of the centre requiring the necessary opposing forces ...
... figure . It is important also to know , that the voussoirs will begin to slide from their positions at an angle of 30--5 ° , a fact which naturally directs attention to those parts of the centre requiring the necessary opposing forces ...
Página 20
... figure . Very few of the lines requisite to be laid down upon it are shown , because a greater number would only tend to embarrass the de- scription , without serving to elucidate in any respect either the principles of its construction ...
... figure . Very few of the lines requisite to be laid down upon it are shown , because a greater number would only tend to embarrass the de- scription , without serving to elucidate in any respect either the principles of its construction ...
Página 21
... figure on E , the position of the line on D , with respect to AG , will be the slope or direction sought . The lines on the piece E marked 14 , 12 , 10 , & c . , are the loci of the ver- tices of triangles , having their hypo- thenuses ...
... figure on E , the position of the line on D , with respect to AG , will be the slope or direction sought . The lines on the piece E marked 14 , 12 , 10 , & c . , are the loci of the ver- tices of triangles , having their hypo- thenuses ...
Página 23
... figure , and the nature of the curve of the teeth , will serve to prove that the teeth act on each other along the line ed ; and that no part of their surface , except what is on that line , is in con- tact . It will also be observed ...
... figure , and the nature of the curve of the teeth , will serve to prove that the teeth act on each other along the line ed ; and that no part of their surface , except what is on that line , is in con- tact . It will also be observed ...
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Términos y frases comunes
alhidade angle apparatus appears arch atmosphere Baddeley barrel Barton-upon-Humber boiler breakwater brestsummer Camera Lucida carriage cause centre Cherbourg circle cohesion combustion communication construction correspondent cusps cylinder diameter distance drawing duced Editor effect epicycloidal equal favour feet fire Fleet Street flue force friction fuel Gilman give given Harrison heat improvements inches invention involute iron labour lemniscates length London Bridge Lord Cochrane machine Magazine matter means Mechanics ment Messrs method mode motion object observed obtained operation opinion oxen paper pass patent person pipe piston plaintiffs Portland Practical Engineer present pressure principle produced prove pump quantity question quired radius of curvature railway readers remarks respect RIVER LUNE screw SEPTENARY side slide square SQUARING THE CIRCLE steam sufficient suppose surface teeth thing tion triangle tube valve velocity vessel weight Weymouth wheel whole zine
Pasajes populares
Página 319 - Fir'd at first sight with what the Muse imparts, In fearless youth we tempt the heights of arts, While from the bounded level of our mind Short views we take, nor see the lengths behind : But more...
Página 224 - Jews as a cruel and accursed people. Cromwell, in his answer to the clergy, called them ' Men of God,' and desired to be informed by them whether it was not their opinion that the Jews were to be called, in the fulness of time, into the Church.
Página 250 - What is the side of a square whose area is equal to that of a circle 452 feet in diameter ? Ans. ^(452)
Página 424 - For there is hope of a tree, if it be cut down, that it will sprout again, And that the tender branch thereof will not cease.
Página 16 - ... depth of three or four inches of water at the bottom, and a small ladder reaching to the top of the jar. On the approach of dry weather the frogs mount the ladder, but when wet weather is expected, they descend into the water.
Página 224 - The rich man is invisible In the crowd of his gay society; But the poor man's delight Is a sore in the sight, And a stench in the nose of piety.
Página 438 - ... this locality. We may suppose, that, at the commencement of the eruption, a deep mass of drift snow had been covered by volcanic sand showered down upon it before the descent of the lava. A dense stratum of this fine dust mixed with scoriae is...
Página 437 - Having procured a large body of workmen, he quarried into this ice, and proved the superposition of the lava for several hundred yards, so as completely to satisfy himself that nothing but the subsequent flowing of the lava over the ice could account for the position of the glacier.
Página 224 - Can you really be afraid," said he, "that this mean despised people, should be able to prevail in trade and credit over the merchants of England, the noblest and most esteemed merchants of the whole world!
Página 224 - I, therefore, came to stand nearly upon the footing which honest Slender consoled himself on having established with Mistress Anne Page : " There was no great love between us at the beginning, and it pleased Heaven to decrease it on further acquaintance...