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Document Max. Freq Min. Freq
Harper's Encyclopedia of United States History (ed. Benson Lossing) 65 65 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 34 34 Browse Search
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 4, 15th edition. 12 12 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 11 11 Browse Search
Benjamin Cutter, William R. Cutter, History of the town of Arlington, Massachusetts, ormerly the second precinct in Cambridge, or District of Menotomy, afterward the town of West Cambridge. 1635-1879 with a genealogical register of the inhabitants of the precinct. 10 10 Browse Search
HISTORY OF THE TOWN OF MEDFORD, Middlesex County, Massachusetts, FROM ITS FIRST SETTLEMENT, IN 1630, TO THE PRESENT TIME, 1855. (ed. Charles Brooks) 10 10 Browse Search
Cambridge History of American Literature: volume 1, Colonial and Revolutionary Literature: Early National Literature: Part I (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 7 7 Browse Search
Medford Historical Society Papers, Volume 8. 5 5 Browse Search
Charles A. Nelson , A. M., Waltham, past, present and its industries, with an historical sketch of Watertown from its settlement in 1630 to the incorporation of Waltham, January 15, 1739. 4 4 Browse Search
Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 2 3 3 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1752 AD or search for 1752 AD in all documents.

Your search returned 11 results in 6 document sections:

Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
or 28 December, 1872/9 January, 1873, as the case may be. The English civil year, from the 14th century till the adoption of the New Style of Gregory XIII. in 1752, commenced on Lady-day, the day of the Annunciation of the B. V. M., March 25; the halfyear was at Michaelmas, the Feast of St. Michael, September 29. Leases are is still retained, so the first day of the financial year is Lady-day of the Old Style, that is, new Lady-day March 25, + the 11 days removed by act of Parliament 1752, = April 6; thus embodying both the ancient practices, namely, the commencement of the year at about the vernal equinox and the old Julian style, which had lost 11he electrified bottle. The latter was the Leyden jar, the invention of Muschenbroek and Kleist, three years previous. Franklin flew his kite in Philadelphia in 1752, and proved the substantial identity of lightning and frictional electricity. He then invented the lightning-rod for the harmless passage of the electricity. D
Knight's Mechanical Encyclopedia (ed. Knight), D. (search)
d a settee-sail. 3. An extra boat of a ship for common uses. It is clinker-built, from 12 to 14 feet long, and has a beam one third of its length. Di-op′ter. An ancient altitude, angle, and leveling instrument; said to have been invented by Hipparchus. Dioptra. Di-op′tric light. The dioptric system of lighting, used in lighthouses, as distinguished from the catoptric, which is by reflectors. Refraction instead of reflection. Lenses were used in the South Foreland light in 1752, and in the Portland light, England, in 1789. The system fell into disfavor, owing to certain mechanical difficulties in the construction and arrangement of the lenses. It was revived and improved by Fresnel about 1810, and has been generally adopted throughout France and Holland, and partially in England. It is considered superior to the catoptric, and was readopted in England in 1834, being placed in the Lundy Island Lighthouse, Devonshire, England. The Fresnel dioptric lamp consist
Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
ir surface rather than their mass, and Franklin soon found that the whole force of the bottle and power of giving a shock is in the glass itself ; he farther, in 1750, suggested that electricity and lightning were identical in their nature, and in 1752 demonstrated this fact by means of his kite and key; about the same time D'Alibard and others in France erected a pointed rod forty feet high at Marli, for the purpose of verifying Franklin's theory, which was found to give sparks on the passage oith a rubbed plate of glass. Although Wall in 1708, Gray in 1734, and Nollet, conjectured the identity of frictional electricity and lightning, yet Franklin was the first to attain the experimental certainty by his well-known kite experiment in 1752. Electrical machine. Electrical machines were formerly made cylindrical, but are now more frequently made with a circular glass disk rotated by a hand-crank. The glass passes between rubbing surfaces, and the electric current which is gener
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
1807. In the dioptric light the beams are transmitted through lenses, instead of being reflected by mirrors. Lenses were adopted in some lighthouses about 1752 – 59, but owing to the imperfections of glass and manufacture, they were not in much favor till the improvements of Fresnel about 1810. See dioptric light. Thss, or of a trifling and unimportant character. The first lightning-rod erected with a definite purpose of protection was put up by Benjamin Franklin soon after 1752, when he brought down electricity from a thunder-cloud. The first in England was set up at Payne's Hill, by Dr. Watson. In 1766 one was placed on the tower of Stnvented. Jacquard's ingenious invention superseded this, producing an entire revolution in the art of figureweaving. Joseph Maria Jacquard was born at Lyons, 1752; invented his loom for weaving figured fabrics in 1801; and died at Orleans in 1834. The action of the Jacquard in producing patterns upon fabric may be briefly
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
extempore voluntaries or other pieces of music, as far as any master shall be able to play them upon the organ, harpsichord, etc. (Phil. Tran., 1747.) Creed invented a machine for this purpose in England in 1747; Hennersdorf of Berlin, one in the following year. John Freke in England, Unger and Hohlfield in Prussia, worked at the idea. Unger formed a part of the harpsichord. The device of Hohlfield was attachable to any instrument. Descriptions were transmitted to the Academy of Berlin in 1752, and published in Brunswick in 1774. Mus′ket. （Fire-arms.) The fire-arm of the infantry soldier. It superseded the arquebus, on which it was an improvement. Formerly, smoothbore and muzzle-loading, modern progress has improved it into the rifled breech-loader of the present. See fire-arms. Mus′ket-oon. A short musket used by cavalry and artillery previous to the introduction of breechloaders. Mus′lin. （Fabric.) A bleached or unbleached thin white cotton cloth, unp
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
in 1814, Fraunhofer, pursuing the investigation, had discovered and located 576 of these lines. He also observed that these were uniformly the same in light received directly from the sun and reflected from the planets, and that light from the selfluminous fixed stars contained black lines differing from those of the solar light. He thence concluded that these variations were due to causes existing outside of our atmosphere,—a conclusion which has been since amply confirmed. Melville, in 1752, noticed the yellow flame due to sodia; and in 1822 Sir John Herschel remarked that the colors contributed by different objects to flame afford in many instances a ready and neat way of detecting extremely minute quantities of them. Mr. Fox Talbot, in 1834. distinguishes the difference between the red lines produced by the flames of strontia and lithia, and in 1845 Professor W. A. Miller experimented upon the spectra of the alkaline earth metals. Professor Bunsen, however, so far advan