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1 ground
ground [graʊnd]terre ⇒ 2 (a), 2 (k) sol ⇒ 2 (a) terrain ⇒ 2 (b), 2 (c), 2 (e), 2 (h) stade ⇒ 2 (c) rez-de-chaussée ⇒ 2 (f) domaine ⇒ 2 (g) fond ⇒ 2 (i), 2 (j) fonder ⇒ 3 (a) former ⇒ 3 (b) mettre à la terre ⇒ 3 (e) moulu ⇒ 5 parc ⇒ 6 (a) motif ⇒ 6 (b) raison ⇒ 6 (b)1 pt & pp of grind2 noun∎ the ground is often frozen in winter la terre est souvent gelée en hiver;∎ at ground level au niveau du sol;∎ the children sat on the ground les enfants se sont assis par terre;∎ to pick sth up off the ground ramasser qch par terre;∎ drive the stakes firmly into the ground enfoncez solidement les pieux dans le sol;∎ above ground en surface;∎ below ground sous terre;∎ to burn sth to the ground réduire qch en cendres;∎ to fall to the ground tomber par ou à terre;∎ to go to ground se terrer;∎ to run a fox to ground traquer un renard jusqu'à son terrier;∎ to run sb to ground (criminal, suspect etc) traquer qn;∎ I finally ran him to ground in the library j'ai fini par le trouver à la bibliothèque;∎ figurative to be on firm ground être sûr de son fait;∎ to change or shift one's ground changer de tactique;∎ it suits him down to the ground ça lui va à merveille, ça lui convient parfaitement;∎ to run a car into the ground utiliser une voiture jusqu'à ce qu'elle rende l'âme;∎ to run a company into the ground faire couler une entreprise;∎ to work oneself into the ground se tuer au travail;∎ figurative he has built his success from the ground up il a réussi en partant de rien;∎ Tennis to hit a ground stroke frapper la balle au rebond∎ there's a lot of hilly ground in Scotland il y a beaucoup de coins vallonnés en Écosse∎ the crowds are leaving the ground la foule des spectateurs sort du stade∎ fishing grounds zones fpl réservées à la pêche;∎ training ground terrain m d'entraînement ou d'exercice∎ to give/to lose ground céder/perdre du terrain;∎ to stand or to hold one's ground tenir bon;∎ to gain ground (in battle) gagner du terrain; (idea, concept) faire son chemin, progresser; (news) se répandre(g) (UNCOUNT) (area of reference) domaine m, champ m;∎ his article covers a lot of ground dans son article, il aborde beaucoup de domaines;∎ this is new ground for me pour moi, c'est un domaine nouveau∎ you're on dangerous ground vous êtes sur un terrain glissant;∎ for them, politics is forbidden ground pour eux, la politique est un sujet tabou ou un domaine interdit;∎ a middle ground un terrain d'entente, un compromis(i) (background) fond m;∎ on a green ground (painting) sur fond vert;∎ the middle ground le second plan∎ to connect to ground mettre à la terre ou à la masse∎ ground (bass) basse f contrainte∎ my fears proved well grounded mes craintes se sont révélées fondées, il s'est avéré que mes craintes étaient fondées∎ the students are well grounded in computer sciences les étudiants ont une bonne formation ou de bonnes bases en informatique(c) (plane, pilot)∎ to be grounded être interdit de vol;∎ the plane was grounded for mechanical reasons l'avion a été interdit de vol à cause d'un incident mécanique∎ to ground the ball aplatir (le ballon)(ship) échouer;∎ the submarine had grounded on a sandbank le sous-marin s'était échoué ou avait échoué sur un banc de sable(a) (around house) parc m, domaine m; (around block of flats, hospital) terrain m; (more extensive) parc m;∎ the house has extensive grounds la maison est entourée d'un grand parc;∎ the grounds are patrolled by dogs le terrain est gardé par des chiens(b) (reason) motif m, raison f; (cause) cause f, raison f; (basis) base f, raison f; (pretext) raison f, prétexte m;∎ to have (good) ground or grounds for doing sth avoir de bonnes raisons de faire qch;∎ you have no grounds for believing that he's lying vous n'avez aucune raison de croire qu'il ment;∎ there are grounds for suspecting arson il y a lieu de penser qu'il s'agit d'un incendie criminel;∎ what grounds have you for saying that? qu'est-ce qui vous permet d'affirmer cela?;∎ he was excused on the grounds of poor health il a été exempté en raison de sa mauvaise santé;∎ on medical/moral grounds pour (des) raisons médicales/morales;∎ on what grounds? à quel titre?;∎ Law grounds for appeal voies fpl de recours;∎ grounds for complaint grief m;∎ grounds for divorce motif m de divorce(c) (of coffee) marc m►► Military ground attack offensive f terrestre;Fishing ground bait amorce f de fond, appât m de fond;Music ground bass basse f contrainte;American ground beef steak m haché;Entomology ground beetle carabidé m;Botany ground cherry physalis m;American Electricity ground connection prise f de terre;Aviation ground control contrôle m au sol;ground cover végétation f basse;ground cover plant (plante f) couvre-sol m inv;ground crew personnel m au sol, personnel m non-navigant;ground fire feu m de broussailles;British ground floor rez-de-chaussée m inv;∎ figurative to get in on the ground floor (at beginning of project) participer dès le début; (buy shares) acheter des actions dès leur émission;Military ground forces armée f de terre;ground frost gelée f blanche;Botany ground ivy lierre m terrestre;∎ at ground level au rez-de-chaussée;Fishing ground line ligne f de fond;Aviation ground operator (who organizes services, transfers etc) voyagiste m ou agence f de réceptif, réceptif m;ground pepper poivre m moulu;ground personnel personnel m au sol, personnel m non navigant;ground pollution pollution f du sol;ground rage = dans un aéroport, comportement agressif de certains passagers envers le personnel au sol, dû à une attente excessive avant l'embarquement;ground rent redevance f foncière;ground rice farine f de riz;ground rule procédure f, règle f;∎ to lay down the ground rules établir les règles du jeu;Zoology ground squirrel spermophile m;ground staff Sport personnel m responsable de l'entretien d'un terrain de sport; British (at airport) personnel m au sol, personnel m non-navigant;Military ground war guerre f terrestre;Geology ground water nappe f phréatique;American Electricity ground wire fil m de terre;Military ground zero hypocentre m, point m zéro -
2 Brennan, Louis
[br]b. 28 January 1852 Castlebar, Irelandd. 17 January 1932 Montreux, Switzerland[br]Irish inventor of the Brennan dirigible torpedo, and of a gyroscopically balanced monorail system.[br]The Brennan family, including Louis, emigrated to Australia in 1861. He was an inventive genius from childhood, and while at Melbourne invented his torpedo. Within it were two drums, each with several miles of steel wire coiled upon it and mounted on one of two concentric propeller shafts. The propellers revolved in opposite directions. Wires were led out of the torpedo to winding drums on land, driven by high-speed steam engines: the faster the drums on shore were driven, the quicker the wires were withdrawn from the drums within the torpedo and the quicker the propellers turned. A steering device was operated by altering the speeds of the wires relative to one another. As finally developed, Brennan torpedoes were accurate over a range of 1 1/2 miles (2.4 km), in contrast to contemporary self-propelled torpedoes, which were unreliable at ranges over 400 yards (366 in).Brennan moved to England in 1880 and sold the rights to his torpedo to the British Government for a total of £110,000, probably the highest payment ever made by it to an individual inventor. Brennan torpedoes became part of the defences of many vital naval ports, but never saw active service: improvement of other means of defence meant they were withdrawn in 1906. By then Brennan was deeply involved in the development of his monorail. The need for a simple and cheap form of railway had been apparent to him when in Australia and he considered it could be met by a ground-level monorail upon which vehicles would be balanced by gyroscopes. After overcoming many manufacturing difficulties, he demonstrated first a one-eighth scale version and then a full-size, electrically driven vehicle, which ran on its single rail throughout the summer of 1910 in London, carrying up to fifty passengers at a time. Development had been supported financially by, successively, the War Office, the India Office and the Government of the Indian state of Jammu and Kashmir, which had no rail access; despite all this, however, no further financial support, government or commercial, was forthcoming.Brennan made many other inventions, worked on the early development of helicopters and in 1929 built a gyroscopically balanced, two-wheeled motor car which, however, never went into production.[br]Principal Honours and DistinctionsCompanion of the Bath 1892.Bibliography1878, British patent no. 3359 (torpedo) 1903, British patent no. 27212 (stability mechanisms).Further ReadingR.E.Wilkes, 1973, Louis Brennan CB, 2 parts, Gillingham (Kent) Public Library. J.R.Day and B.C.Wilson, 1957, Unusual Railways, London: F.Muller.See also: Behr, Fritz Bernhard; Lartigue, Charles François Marie-Thérèse; Palmer, Henry Robinson( monorails); Whitehead, Robert( torpedoes).PJGR
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