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Knight's Mechanical Encyclopedia (ed. Knight) 6 0 Browse Search
Harper's Encyclopedia of United States History (ed. Benson Lossing) 3 1 Browse Search
Rebellion Record: a Diary of American Events: Poetry and Incidents., Volume 1. (ed. Frank Moore) 2 0 Browse Search
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 1 2 0 Browse Search
the Rev. W. Turner , Jun. , MA., Lives of the eminent Unitarians 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 Llandaff (United Kingdom) or search for Llandaff (United Kingdom) in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
or. See Culley's Handbook of telegraphy, London, 1870, pp. 199-203. E-lec′tric Tel′e-graph. That form of electric signaling apparatus in which an insulated wire excited by frictional electricity is — or rather was — used to convey messages by sparks or shocks. For notices of early observations, see electrical apparatus. Gray, in 1729, experimented with conductors; Nollet soon afterwards sent a shock along a line of men and wires 900 toises in length; Watson, the learned Bishop of Llandaff, in 1745, sent a shock through 12,000 feet of wire, and proved that it was practically instantaneous throughout its length. He signaled an observer by this means. A writer in the Scots' magazine, in 1753, proposed a series of wires from the ends of which were to be suspended light balls marked with the letters of the alphabet, or bells which were to be moved by an electric current directed to the appropriate wire. Lesage, at Geneva, in 1774, actually constructed a telegraph arranged
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
p Watson, Murdoch, Winsor, Clegg; a clergyman, a bishop, an engineer, an enthusiast, a mechanic. In 1726, Dr. Hales, in his work on Vegetable Statics, states that 158 grains of coal yield 180 cubic inches of gas. In 1750, Watson, Bishop of Llandaff, distilled coal, passed the gas through water, and conveyed it in pipes from one place to another. In 1786, Lord Dundonald erected ovens or retorts in which he distilled coal and tar, and burned the issuing gas. He seems to have considered itng every particle of the gas into contact with water, for which the ammonia has a great affinity. The effectiveness of a particular machine is in proportion to the intimateness of the contact of the gas and water therein. Dr. Watson, Bishop of Llandaff, announced the fact in 1750, that the inflammability of gas was not affected by contact with water. The washer is the third in the series of gas-making apparatus. (See gas-making.) Mr. Croll, an English gas-engineer, is credited with the inven