The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 12

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M. Salmon, 1830 - Industrial arts
 

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Page 338 - O MORTAL man, who livest here by toil, Do not complain of this thy hard estate ; That like an emmet thou must ever moil, Is a sad sentence of an ancient date ; And, certes, there is for it reason great ; For, though sometimes it makes thee weep and wail, And curse thy star, and early drudge and late, Withouten that would come a heavier bale, Loose life, unruly passions, and diseases pale.
Page 85 - As any one side, Is to the sine of its opposite angle ; So is any other side, To the sine of its opposite angle.
Page 229 - The free course of the River being obstructed by the numerous piers of the ancient Bridge, and the passage of boats and vessels through its narrow channels being often attended with danger and loss of life by reason of the force and rapidity of the current, the City of London, desirous of providing a remedy for this evil, and at the same time consulting the convenience of Commerce in this vast emporium of all nations, under the sanction...
Page 18 - THIS verse be thine, my friend, nor thou refuse This from no venal or ungrateful Muse. Whether thy hand strike out some free design, Where life awakes, and dawns at every line, Or blend in beauteous tints the colour'd mass, And from the canvas call the mimic face...
Page 138 - The fire in the boiler shall then be lighted, and the quantity of fuel consumed for getting up the steam shall be determined, and the time noted. The tender-carriage, with the fuel and water, shall be considered to be, and taken as part of the load assigned to the engine. Those engines that carry their own fuel and water shall be allowed a proportionate deduction from their load according to the weight of the engine.
Page 15 - Hipparchus, was an astrolabe for taking the distances in longitude between the sun and moon, or between the moon and a star.
Page 480 - I should be much obliged to any of your correspondents who would favour me with an explanation of the following singular fact.
Page 107 - I could distinguish by a telescope every sail, the general rig of the ship, and its particular character; insomuch that I confidently pronounced it to be my father's ship the Fame, which it afterwards proved to be; though, on comparing notes with my father, I found that our relative position at the time gave our distance from one another very nearly thirty miles, being about seventeen miles beyond the horizon, and some leagues beyond the limit of direct vision.
Page 137 - ... the average rate of travelling shall not be less than ten miles per hour. " As soon as the engine has performed this task, (which will be equal to the travelling from Liverpool to Manchester,) there shall be a fresh supply of fuel and water delivered to her; and as soon as she can be got ready to set out again, she shall go up to the startingpost, and make ten trips more, which will be equal to the journey from Manchester back again to Liverpool.
Page 393 - ... or it may, perhaps, extend also to a new process, to be carried on by known implements, or elements acting upon known substances, and ultimately producing some other known substance, but producing it in a cheaper or more expeditious manner, or of a better and more useful kind. But no merely philosophical or abstract principle can answer to the word

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