A Letter to the Kensington Canal Company on the Substitution of the Pneumatic Railway for the Common Railway by Which They Contemplate Extending Their Line of Conveyance

But supposing ten times this load were to be raised, the degree of exhaustion must be ten times as great, or about the fourth of a vacuum. And, as the greater the exhaustion, th...

“Fourthly, that the number of revolutions made by a carriage wheel depends on the size of that wheel, as well as on the motion of the vehicle. The fore wheels of the coaches whi...

For, equally certain as it is that iron, though the best, is not the _only_ material of which tunnels can be constructed, is it, that unless this proposition is very differently...

Nor would the quantity of air that rushed by the _piston-end_ of the carriage be at all important, even when travelling at _very_ great velocities, and with heavy loads. In a tu...

Were a method of conveyance in operation, by which the inhabitants of the west end of Kensington, of Earl’s Court, of North End, of Walham Green, of Brook Green, of Hammersmith,...

In the evidence laid before the Lords’ Committees upon the London and Birmingham Railway, it is stated that the whole amount of “earth work” required for that railway, amounts t...

And notwithstanding that instances of velocities equal to ten miles an hour having been attained by locomotive engines, were not very common at the time the line of the Liverpoo...

According to the section of that line, the height of the embankment it would be necessary to raise to give you a regular plane of ascent, would so effectually divide the grounds...

Bodies moving on levels at the under Have moments, which mentioned velocities, the motions of which (friction being are changed from horizontal to ascending, by counteracted) wi...

“Under circumstances of this sort, there can be no doubt that those microcosmic minds, which, habitually occupied in the consideration of what is little, are incapable of discer...

“It stands now, exactly as the steam-engine stood, when Watt had completed the first one he made: that is, certain in its effect, provided we will be at the charge of combining...

“They saw two locomotive engines, for drawing along these roads; but they were not at work. The boilers of these engines were eight feet long, and four feet diameter: and they u...