The Artist's Guide and Mechanic's Own Book: Embracing the Portion of Chemistry Applicable to the Mechanic Arts, with Abstracts of Electricity, Galvanism, Magnetism, Pneumatics, Optics, Astronomy, and Mechanical Philosophy. Also Mechanical Exercises in Iron, Steel, Lead, Zinc, Copper, and Tin Soldering and a Variety of Useful Receipts, Extending to Every Profession and Occupation of Life; Particularly Dyeing, Silk, Woollen, Cotton, and Leather

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Sanborn & Carter, 1847 - 482 pagine

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Pagina 20 - All these things being considered, it seems probable to me that God in the beginning formed matter in solid, massy, hard, impenetrable, moveable particles, of such sizes and figures, and with such other properties and in such proportion to space as most conduced to the end for which he formed them...
Pagina 465 - In witness whereof, the master or purser of the said vessel hath affirmed to bills of lading, all of this tenor and date ; one of which being accomplished, the others to stand void.
Pagina 125 - By this arrangement some brilliant phenomena were produced. The potash appeared a conductor in a high degree, and as long as the communication was preserved, a most intense light was exhibited at the negative wire, and a column of flame, which seemed to be owing to the developement of combustible matter, arose from the point of contact.
Pagina 305 - REPULSION. 1. REPULSION is that property in bodies, whereby, if they are placed just beyond the sphere of each other's attraction of cohesion, they mutually fly from each other. 2. OIL refuses to mix with water, from the repulsion between the particles of the two substances; and from the same cause, a needle gently laid upon water will swim. MOTION.
Pagina 464 - Ship called the whereof is Master for this present Voyage and now riding at Anchor in the and bound for to say being marked and numbered as in the Margin, and are to be delivered...
Pagina 390 - Experience confirms that the velocity of 3 feet per second is applicable to the highest overshot wheels, as well as the lowest; though high wheels may deviate further from this rule, before they will lose their power, by a given aliquot part of the whole, than low ones can be admitted to do ; for a 24 feet wheel may move at the rate of 6 feet per second, without losing any considerable part of its power.
Pagina 344 - ... till it looks perfectly smooth. Next to that, heat it by turning it against a piece of linen, or sheep-skin leather, and when hot, rub it over with a little whitening diluted in oil of olive ; then with a little dry whitening alone, and finally with a piece of soft white rag. When all this is performed as directed, the ivory will look remarkably white.
Pagina 125 - The presence of water appearing thus to prevent any decomposition, I used potash in igneous fusion. By means of a stream of oxygen gas from a gasometer applied to the flame of a spirit lamp, which was thrown on a platina spoon containing potash, this alkali was kept for some minutes in a strong red heat, and in a state of perfect fluidity. The spoon was preserved in communication with the positive side of the battery of the power of 100 of 6 inches, highly charged; and the...
Pagina 392 - ... which the power can be taken, is that point in the circle of gyration horizontal to the centre of the axle; because, taking the power from this part, the whole weight of water in the buckets acts upon the teeth of the wheels; and the axle of the water wheel suffers no strain. The proper connection of machinery to water wheels is of the first importance, and mismanagement in this particular point is often the cause of the journals and axles giving way, besides a considerable loss of power. To...
Pagina 126 - When the order was changed, so that the platina spoon was made negative, a vivid and constant light appeared at the opposite point: there was no effect of inflammation round it; but aeriform globules, which inflamed in the atmosphere, rose through the potash.

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