Heroes of invention and discovery, selected by the editor of 'Risen by perseverance'. |
Dentro del libro
Resultados 1-5 de 20
Página 2
... common feelings of mankind , that no literary work , it may be safely asserted , has ever acquired a permanent reputation and popularity , or , in other words , produced any wide and enduring effect , which was not distinguished by the ...
... common feelings of mankind , that no literary work , it may be safely asserted , has ever acquired a permanent reputation and popularity , or , in other words , produced any wide and enduring effect , which was not distinguished by the ...
Página 9
... common pump , taking care , of course , that no air entered to replace the liquid . This method was probably suggested to Guericke by Torricelli's beautiful experiment with the barometrical tube , the vacuum produced in the upper part ...
... common pump , taking care , of course , that no air entered to replace the liquid . This method was probably suggested to Guericke by Torricelli's beautiful experiment with the barometrical tube , the vacuum produced in the upper part ...
Página 10
... common water - pump , in which it had been long used . A valve , which , simple as it is , is one of the most useful and indeed indispensable of mechanical contrivances , is , as most persons know , merely a flap , or lid , moving on a ...
... common water - pump , in which it had been long used . A valve , which , simple as it is , is one of the most useful and indeed indispensable of mechanical contrivances , is , as most persons know , merely a flap , or lid , moving on a ...
Página 14
... common atmosphere . the usual density of the atmosphere is very far from being the greatest to which the air may be raised . It is evident that , if the two valves of the air - pump we have already described be made to open inwards ...
... common atmosphere . the usual density of the atmosphere is very far from being the greatest to which the air may be raised . It is evident that , if the two valves of the air - pump we have already described be made to open inwards ...
Página 20
... common tea - kettle , in fact , is a sort of Æolipile . The only use which the ancients proposed to make of this contrivance was , to apply the current of steam , as it issued from the spout , by way of a moving force - to propel for ...
... common tea - kettle , in fact , is a sort of Æolipile . The only use which the ancients proposed to make of this contrivance was , to apply the current of steam , as it issued from the spout , by way of a moving force - to propel for ...
Términos y frases comunes
afterwards air-pump appears applied atmosphere attention Bessemer Bessemer process Black Callerton Boulton Boyle called canal carriage chemistry chloroform coals colliery condensation considerable constructed contrivance Crompton cylinder Darlington Davy Davy's discoveries draw early Edinburgh Edward Pease effect employed engine England Ericsson expansive force experiments father Flamstead friends genius George Stephenson heat Henry Cort honour horses improvements ingenious instruments invention inventor iron James Watt JOHN ERICSSON Killingworth labour locomotive London machine machinery manufacture means mechanical ment metal method miles an-hour mind never Newcastle obtained opening Papin Parliament patent perfect philosopher piston principles produced Professor properties proposed quantity rails railway received remarked road ROBERT BOYLE Royal Society Samuel Crompton Samuel Morland says scientific Scotland Simpson soon speed steam steam-engine success tion vacuum vessel waggons West Moor wheel whole writings Wylam young
Pasajes populares
Página 8 - New Experiments Physico-mechanical, touching the spring of the air, and its effects ; (made for the most part in a new pneumatical engine) written .... by the honourable Robert Boyle, Esq* experiment xxxvi.
Página 21 - An admirable and most forcible way to drive up water by fire, not by drawing or sucking it upwards, for that must be as the philosopher calleth it, infra spheeram activitatis, which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it three...
Página 116 - ... there's a divinity that shapes our ends, rough hew them how we will.
Página 99 - Suppose, now, one of these engines to be going along a railroad at the rate of nine or ten miles an hour, and that a cow were to stray upon the line and get in the way of the engine ; would not that, think you, be a very awkward circumstance ? "
Página 75 - The manner of the carriage is by laying rails of timber from the colliery...
Página 107 - I said to my friends that there was no limit to the speed of such an engine, provided the works could be made to stand.
Página 42 - ... consumes none while idle ; it never tires, and wants no sleep ; it is not subject to malady when originally well made, and only refuses to work when worn out with age ; it is equally active in all climates, and will do work of any kind ; it is a water-pumper, a miner, a sailor, a cotton-spinner, a weaver, a blacksmith, a miller, &c., &c.
Página 48 - ... skilled in chemistry and the arts, and in most of the branches of physical science, might, perhaps, have been conjectured ; but it could not have been inferred from his usual occupations, and, probably, is not generally known, that he was curiously learned in many branches of antiquity, metaphysics, medicine, and etymology, and perfectly at home in all the details of architecture, music, and law.
Página 108 - I was in education, and made up my mind that he should not labour under the same defect, but that I would put him to a good school, and give him a liberal training. I was, however, a poor man ; and how do you think I managed ? I betook myself to mending my neighbours...
Página 78 - Ravensworth and partners were the first to entrust me with money to make a locomotive engine. That engine was made thirtytwo years ago; and we called it ' My Lord." I said to my friends, there was no limit to the speed of such an engine, if the works could be made to stand it.