United States or Thailand ? Vote for the TOP Country of the Week !
I've 'vented three things since tea: a thing to make Daddy's bikesickle stand still with Daddy on it; a thing to squeeze corks out of bottles; and a thing to make my steam-engine go faster. That isn't a punishment, is it, Mummy?" They said that Nicky would grow out of it. But two more years passed and Nicky was still the same. And yet he was not the same.
As regards the steam-engine, it is the opinion of competent authorities that the limits of temperature between which it works are so restricted, and so much of the heat is expended in producing a change of state from liquid to vapor, that little further improvement can be made. With respect to gas-engines, the limits of temperature are much further apart.
Bentham had even proceeded with the erection of a building in Portsmouth Dockyard for the manufacture of the blocks after his method, the necessary steam-engine being already provided; but with a singular degree of candour and generosity, on Brunel's method being submitted to him, Sir Samuel at once acknowledged its superiority to his own, and promised to recommend its adoption by the authorities in his department.
From Brindley, the constructor of the earliest great canal, to Joseph Gillott, the inventor of the very steel pen with which this book is written; from Arkwright the barber who fashioned the first spinning-machine, to Crompton the weaver, whose mule gave rise to the mighty Manchester cotton trade; from Newcomen, who made the first rough attempt at a steam-engine, to Stephenson, who sent the iron horse from end to end of the land, the chief mechanical improvements in the country have almost all been due to the energy, intelligence, and skill of our labouring population.
With Savery and Cawley, he invented and in 1705 patented the atmospheric steam-engine by which he is known, and which, as told by Arago, gave place to the superior invention of Watt.
Next day was the one fixed for the trial of the new steam-engine; which trial being successful, we were to start at once in a post-chaise for Longfield; for the mother longed to be at home, and so did we all. There was rather a dolorous good-bye, and much lamenting from good Mrs. Tod, who, her own bairns grown up, thought there were no children worthy to compare with our children.
Is it the inventor of the first steam-engine, or the boy, who, one day getting tired of pulling the rope that formerly opened the valve to let steam under the piston, tied the rope to the lever of the machine, without suspecting that he had invented the essential mechanical part of all modern machinery the automatic valve?
For the rest it is repetition and paraphrase. The grains of wheat were threshed out and garnered two thousand years since. Except the receipts of chemists, except specifications for the steam-engine, or the electric motor, there is nothing in these millions of books that was not known at the commencement of our era. Not a thought has been added.
All, then, at last was silent, just as the clock from the church sounded the stroke of eleven. Leonard, meanwhile, had been looking over his manuscripts. There was first a project for an improvement on the steam-engine, a project that had long lain in his mind, begun with the first knowledge of mechanics that he had gleaned from his purchases of the tinker.
In the steam-engine the piston is forced backward and forward by the expansive power of the steam, the vapour being admitted alternately to the forward and rear ends of the cylinder.
Word Of The Day