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时间: 2019年12月11日 09:17

It was in 1910 that the British War Office first began fully to realise that there might be military226 possibilities in heavier-than-air flying. C. S. Rolls had placed a Wright biplane at the disposal of the military authorities, and Cody, as already recorded, had been experimenting with a biplane type of his own for some long period. Such development as was achieved was mainly due to the enterprise and energy of Colonel J. E. Capper, C.B., appointed to the superintendency of the Balloon Factory and Balloon School at Farnborough in 1906. Colonel Capper鈥檚 retirement in 1910 brought (then) Mr Mervyn O鈥橤orman to command, and by that time the series of successes of the Cody biplane, together with the proved efficiency of the aeroplane in various civilian meetings, had convinced the British military authorities that the mastery of the air did not lie altogether with dirigible airships, and it may be said that in 1910 the British War Office first began seriously to consider the possibilities of the aeroplane, though two years more were to elapse before the formation of the Royal Flying Corps marked full realisation of its value. My help, my dear! I'm sure I don't know how I can help you. But if I can I will. And I congratulate you sincerely. I've seen how it would be all along. You know I told you that a certain gentleman was falling over head and ears in love, a long time ago. Didn't I, now? Having made their conquest, the brothers took the machine back to camp, and, as they thought, placed it in safety. Talking with the little group of spectators about the flights, they forgot about the machine, and then a sudden gust of wind struck it. Seeing that it was being overturned, all made a rush toward it to save it, and Mr Daniels, a man of large proportions, was in some way lifted off his feet, falling between the planes. The machine overturned fully, and Daniels was shaken like a die in a cup as the wind rolled the machine over and over鈥攈e came out at the end of his experience with a series of bad bruises, and no more, but the damage done to the machine by the accident was sufficient to render it useless for further experiment that season. Now you are mine, my very own鈥攁re you not, Rhoda? Da Vinci鈥檚 conclusions, and his experiments, were forgotten easily by most of his contemporaries; his Treatise lay forgotten for nearly four centuries, overshadowed, mayhap, by his other work. There was, however, a certain Paolo Guidotti of Lucca, who lived in the latter half of the sixteenth century, and who attempted to carry da Vinci鈥檚 theories鈥攐ne of them, at least, into practice. For this Guidotti, who was by profession an artist and by inclination an investigator, made for himself wings, of which the framework was of whalebone; these he covered with feathers, and with them made a number of gliding flights, attaining considerable proficiency. He is said in the end to have made a flight of about four hundred yards, but this attempt at solving the problem ended on a house roof, where Guidotti broke his thigh bone. After that, apparently, he gave up the idea of flight, and went back to painting. You are wonderfully energetic, Gibbs. An invaluable public servant. But, Gibbs, it will not, I think, be any part of your duty to mention to any one at present the losses I have spoken of from my secretaire. There is no reason, as yet, to connect them with the missing letters. I did not duly consider what I was saying. The papers, after all, were only private letters of my own, Gibbs. They concern no one but myself. One was a mere note鈥攁n invitation from a lady. They could have had no value for a thief, you know. I鈥擨 daresay I mislaid it, and never put it into the secretaire at all. 国产av在在免费线观看,国产免费视频在观看,免费v片在线观看网站 Rhoda looked up at him in genuine surprise; but her eyes fell before the answering look they encountered, and she blushed from brow to chin. XVI LONDON TO MANCHESTER Her husband looked at her in astonishment. It was a quite unexpected suggestion on Castalia's part. "Could you be kind enough to point out anything?" he asked drily. She looked somewhat cast down by his tone, but answered, "There's that last case of wine from town鈥攖he Rhine wine. Don't you think we might send it back unopened, and do with a bottle of sherry, now and then, from the 'Blue Bell?' Your mother finds that very good." Oh, I daresay. Well, if you funk it you needn't come. There's plenty without you. The damage done was repaired within six weeks, and the second trial was made on January 17th, 1906. The lifting force was too great for the weight, and the354 dirigible jumped immediately to 1,500 feet. The propellers were started, and the dirigible brought to a lower level, when it was found possible to drive against the wind. The steering arrangements were found too sensitive, and the motors were stopped, when the vessel was carried by the wind until it was over land鈥攊t had been intended that the trial should be completed over water. A descent was successfully accomplished and the dirigible was anchored for the night, but a gale caused it so much damage that it had to be broken up. It had achieved a speed of 30 feet per second with the motors developing only 36 horse-power and, gathering from this what speed might have been accomplished with the full 170 horse-power, Zeppelin set about the construction of No. 3, with which a number of successful voyages were made, proving the value of the type for military purposes.