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In 1896 he was president of a royal commission on the carriage of coal in ships. He obtained leave of absence in 1898 to inquire into methods of teaching electrical subjects in Europe, but on his return resigned his chair as from 31 December 1898, as circumstances had made it necessary that he should
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and founded the school. He had no building and little apparatus when he began his work, but in 1888 a physical laboratory was completed and the necessary appliances were purchased. He carried out his duties with energy and also found time for research. An early invention was the rocking
157:, consisting of a cylindrical tin containing white phosphorus, paraffin, oil and petrol. Originally designed as an incendiary device to destroy long grass in front of the trenches that gave cover to enemy raiding parties, it also had a useful smoke-producing effect and was used at the
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and also at rifle shooting. He distinguished himself as a speaker at the union, and did a remarkable course, taking a first class in the first part of the natural science tripos, and a first in both physics and chemistry in the second part.
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149:, at Oldbury, and continued his connection until the time of his death. His experience in this direction was to prove of the greatest service to his country during the 1914–18 war, particularly in connexion with
118:, an instrument which proved to be of great value in biological study. Another was a quartz thread balance which enabled him to obtain great accuracy in his comparison of values for gravity at different places.
125:, Threlfall suggested in a 1890 oral discussion that "Signaling, for instance, might be accomplished secretly by means of a sort of electric ray flasher", thus predicting yet-uninvented
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Threlfall now became a consulting engineer and established a high reputation as an electro-chemist, combining chemical insight with the aptitude of an engineer. He joined the firm of
304:, Vol II, London: Macmillan, 1928/Imperial War Museum & Battery Press, 1995, ISBN 0-89839-219-5/Uckfield: Naval & Military Press, 2009, ISBN 978-1-84574-719-0, pp. 160–1.
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Though his main work was in industrial chemistry he kept up his interest in pure science, and was a frequent attendant at meetings of the Royal
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board. An organization which carried on its work after the war, the fuel research board was joined by him in 1917 and he became its chairman in 1923.
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He married Evelyn Agnes, daughter of John
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41:(14 August 1861 – 10 July 1932) was an English chemist and engineer, he established the School of Physics at the
269:"Clifton College Register" Muirhead, J.A.O. p42: Bristol; J.W Arrowsmith for Old Cliftonian Society; April, 1948
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History of the Great War: Military
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t., J. J.; h., W. B. (1932). "Sir
Richard Threlfall. 1861-1932".
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Threlfall died on 10 July 1932 and is buried in a family tomb at
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and tracer bullets. In July 1915 he invented the 'Threlfallite'
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Threlfall was a son of
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In 1886 Threlfall was appointed professor of physics at the
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and made important contributions to military science during
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After graduating he was appointed a demonstrator in the
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Knights Grand Cross of the Order of the
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