The Chess player's chronicle, Volume 6

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Page 157 - Society, all the parts employed in a clock for maintaining and regulating the power are entirely dispensed with. It consists simply of a face with its second, minute and hour hands, and of a train of wheels which communicate motion from the arbor of the...
Page 224 - He was a man of genius as well as a good soldier, aucl having contemplated some time on the subject, he invented the game of Chess, as well for an amusement to his men in their vacant hours, as to inflame their military ardour, the game being wholly founded on the principles of war.
Page 156 - Ingenious as Professor Wheatstone's contrivances are, they would have been of no avail for telegraphic purposes without the investigation, which he was the first to make, of the laws of, electro-magnets when acted on through great lengths of wire. Electro-magnets of the greatest power, as usually constructed, even when the most energetic batteries are employed, utterly cease to act when they are connected by considerable lengths of wire with the battery, and it appeared at one time hopeless to employ...
Page 190 - I believe is known out of this country, (China,) there are two pieces whose movements are distinct from any in the Indian or European game. The Mandarin, which answers to our bishop in his station and side-long course, cannot, through age, cross the river; and a...
Page 230 - KP two squares 2 K. Kt. to B. third 3 KB to QB fourth 4 QBP one square , 5 QP two squares 6 P.
Page 158 - ... electro-magnetic coils and those of the other parts of the circuit, must, in order to produce the maximum effect with the least expenditure of power, be varied to suit each particular case. In the concluding part of the paper the author points out several other and very different methods of effecting the same purpose ; and in particular one in which Faraday's magneto-electric currents are employed, instead of the current produced by a voltaic battery : he also describes a modification of the...
Page 254 - My enquiries teach me that in this instance also a name has been formed from a quality ; and that in modern Persian rookh means facing or bearing in a direct line ; and applied to the rookh at chess, and its moves, is very appropriate ; at the same time I have...
Page 157 - An extremely light brass spring, which is screwed to a block of ivory or hard wood, and which has no connexion with the metallic parts of the clock, rests by its free end on the circumference of the disc. A copper wire is fastened to the fixed end of the spring, and proceeds to one end of the wire of the electromagnet ; while another wire attached to the clock-frame is continued until it joins the other end of that of the same electro-magnet. A constant voltaic battery, consisting of a few elements...
Page 191 - It will appear, however, that the Chinese pieces far exceed the proportion of ours, which occasions the whole force of the contest to fall on them, and thereby precludes the beauty and variety of our game, when reduced to a struggle between the pawns, who are capable of the highest promotion, and often change the fortune of the day. The posts of the Ping arc marked in front.
Page 156 - We can only further briefly allude to two of the most important modifications of his invention which Professor Wheatstone has made for specific purposes :— 1. By substituting for the paper disc on the circumference of which the letters are printed a thin disc of brass cut from the circumference to the centre, so as to form four-and-twenty springs, on the extremities of which types or punches are placed, and adding a mechanism, the detent of which, acted on by an electro-magnet, causes a hammer...

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