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Knight's Mechanical Encyclopedia (ed. Knight) 18 0 Browse Search
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 6 0 Browse Search
Varina Davis, Jefferson Davis: Ex-President of the Confederate States of America, A Memoir by his Wife, Volume 2 4 0 Browse Search
Baron de Jomini, Summary of the Art of War, or a New Analytical Compend of the Principle Combinations of Strategy, of Grand Tactics and of Military Policy. (ed. Major O. F. Winship , Assistant Adjutant General , U. S. A., Lieut. E. E. McLean , 1st Infantry, U. S. A.) 4 0 Browse Search
The writings of John Greenleaf Whittier, Volume 1. (ed. John Greenleaf Whittier) 4 0 Browse Search
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 10 4 0 Browse Search
Richard Hakluyt, The Principal Navigations, Voyages, Traffiques, and Discoveries of the English Nation 2 0 Browse Search
The writings of John Greenleaf Whittier, Volume 7. (ed. John Greenleaf Whittier) 2 0 Browse Search
Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I. 2 0 Browse Search
The Daily Dispatch: March 20, 1862., [Electronic resource] 2 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Magdeburg (Saxony-Anhalt, Germany) or search for Magdeburg (Saxony-Anhalt, Germany) in all documents.

Your search returned 9 results in 4 document sections:

Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
lating millstones. Graduator.Ventilator. Gunpowder engine.Water-bellows. Hydrostatic bellows.Wind-car. Inhaler.Wind-chest. Insect exterminator.Wind-cutter. Insufflator.Wind-furnace. Leech. ArtificialWind-gage. Life-preserver.Windmill. Magdeburg hemispheres.Windmill-propeller. Mulguf.Wind-pump. Organ.Wind-sail. Parachute.Wind-trunk. Pneumatic drill.Wind-wheel. Air as a means of transmitting power. So far as our information extends, the first person to use compressed air as a showed by an engine on purpose . . . . Above all Mr. Boyle was at the meeting, and above him Mr. Hooke, who is the most, and promises the least, of any man in the world that I ever saw. the air-pump was reinvented by Otto von Guericke of Magdeburg, about A. D. 1650. since then this instrument has been much improved by Hooke, Papin, Hawksbee, and Boyle. Many varieties of structure have been devised, the principle of all being the same. The basis or essential part in the air-pump is a m
Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
by the extent of the deep intervening occanic basins. Gilbert was surgeon to Queen Elizabeth and James I., and died in 1603. The electric-telegraph preceded the electro-magnetic by many years. See electric-telegraph. Otto Guericke, of Magdeburg, discovered that there was a repulsive as well as an attractive force in electricity, observing that a globe of sulphur, after attracting a feather to it, repelled it until the feather had again been placed in contact with some other substance.red the fundamental identity of the forces known as magnetism and electricity, and measured the strength of the electricity excited by rubbing amber, glass, resin, etc. His electrometer was an iron needle poised on a pivot. Otto Guericke, of Magdeburg, recognized phenomena of repulsion. He heard the first sound and saw the first light in artificially excited electricity. Newton saw the first traces of an electric charge in 1675, in some experiment with a rubbed plate of glass. Although
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
ich are cut apart as they are used. See classification list under fire-arm, pp. 854-862. Base-burning magazine-stove. Maga-zine′--stove. One in which is a fuelchamber which supplies coal to the fire as that in the grate burns away. Magdeburg hemispheres. The example is a base-burning stove, having a fuel-magazine suspended free from the grate, and having an unobstructed free space around and below it, an illuminated casing surrounding it. See baseburning stove. Mag′de-burg Hem′i-spheres. Hemispheres of brass whose edges are carefully ground together to make an air-tight joint, and designed to illustrate the pressure of the atmosphere. The experiment originated with the worthy Otto Guericke, burgomaster of Magdeburg, about 1654. The edges of the hemispheres, being greased with oil or tallow, are brought together, the foot removed, and the stopcock screwed into the center of the air-pump plate. The cock being opened and a few strokes of the pump made, the <
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
rom the aeolipile of Hero, 150 B. C., or the reaction water-wheel of Barker, say A. D. 1740. We are much indebted to the worthy Otto Guericke, a magistrate of Magdeburg, for re-inventing the air-pump, about 1650; but Hero, 1,800 years before, had used an air-pump to condense air in a chamber above water to make an artificial fountain. The splendid French edition of Hero's Spiritalia was published in Paris during the reign of Louis XIV., — not so very long after the good burgher of Magdeburg had set the ball rolling again. What Archimedes did for the fleet of Marcellus at Syracuse, 212 B. C., Proclus did for the ships of Vitalian at Constantinople some 7for thinking in astronomy otherwise than the Franciscan and Dominican licensers thought. The next we hear of the piston is in the air-pump of Otto Guericke of Magdeburg, and in the steamengine of Dr. Papin of Blois. If we knew better what the philosophers of Alexandria and Cordova had been doing in the mean time, we should prob