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Updated: June 12, 2025
The flame of coal-gas owes its brightness to the separation, during combustion, of these particles of carbon, which are equally in that as in a candle. I can very quickly alter that arrangement. Here, for instance, is a bright flame of gas.
I find, therefore, that my sole note upon the Rylands Library is the very honest one that it smelt, like the cathedral, of coal-gas. The absence of this gas was the least merit of the beautiful old Chetham College, with its library dating from the seventeenth century, and claiming to have been the first free library in England, and doubtless the world.
A gas-engine, now of common use, by the expansion, which is explosion, caused by burning a mixture of coal-gas and air, and the steam-engine, the universal power generator of modern life, works by the expansion of the vapor of water as it is generated by heat. Steam may be considered a species of gradual explosion applied to the uses of industry.
But they are spared the pain of foul smells, and possibly in this way they may incur some danger in civilised life through not being able to detect the escape of sewer-gas or of coal-gas into a house, or the putrid condition of ice-stored fish, birds, and meat.
The piston in this engine was thrown upwards, this in turn forcing a pump piston down which did work in raising water. This was the first real gas engine, though it was crude and very imperfectly arranged. In 1801 Franzose Lebon described a machine to be driven by means of coal-gas.
The marvellously cheap "water-gas" which is made through a jet of steam impinging upon incandescent carbons or upon other suitable glowing hot materials will, no doubt, for a long time command the market after the date at which coal-gas for the generation of power has been partially superseded.
He awoke late, and with the disagreeable feeling of a man who has been half-suffocated with coal-gas: his head ached painfully. The room was dim: an unpleasant moisture pervaded the air, and penetrated the cracks of his windows.
Hydrogen sulphide may be prepared very easily, and sufficiently pure for ordinary analytical purposes, by passing coal-gas through boiling sulphur. Coal-gas contains 40 to 50 per cent, of hydrogen, nearly the whole of which may, by means of a suitable arrangement, be converted into sulphureted hydrogen.
It will serve two purposes shewing you what the blowpipe does as a source of heat, and what it does by sending that heat where it is wanted. I have taken iron in contrast with silver or other metals, that you may see the difference of action, and so be more interested in the experiment. Here is our fuel, the coal-gas; and here our oxygen.
Brioschi, however, received injuries which afterwards resulted in his death. In England one of the most famous aeronauts was Mr Green, who introduced coal gas for balloons, and made many hundreds of ascents. In the year 1836 he ascended from London in a coal-gas balloon, and with two other gentlemen made an aerial voyage to Weilburg in the grand Duchy of Nassau.
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