About half an hour, I think. Rhoda! Rhoda! Won't you say one word to me? It is said that he once persuaded his gardener to trust himself in this glider for a flight, but if Cayley himself ventured a flight in it he has left no record of the fact. The following extract from his work, Aerial Navigation, affords an instance of the thoroughness of his investigations, and the concluding paragraph also47 shows his faith in the ultimate triumph of mankind in the matter of aerial flight:鈥? Frederick.鈥? 鈥淎dieu! my adorable sister. I am so tired I can not stir, having left on Tuesday night, or rather Wednesday morning, at three o鈥檆lock, from a ball at Monbijou, and arrived here this Friday morning at four. I recommend myself to your gracious remembrance, and am, for my own part, till death, dearest sister, your 一色屋_免费精品成人视频在线观看网站 He drew a little nearer to her as he asked the question, and looked at the book she held. Yes! I'm afraid it is not very wise, but I wanted to finish the chapter; and my eyes are really very strong. 鈥淟oss of time was one of the losses Frederick could least stand. In visits, even from his brothers and sisters, which were always by his own express invitation, he would say some morning (call it Tuesday morning), 鈥榊ou are going on Wednesday, I am sorry to hear鈥?(what you never heard before). 鈥楢las! your majesty, we must.鈥?鈥榃ell, I am sorry; but I will lay no constraint on you. Pleasant moments can not last forever.鈥?This trait is in the anecdote-books; but its authenticity does not rest on that uncertain basis. Singularly enough, it comes to me individually, by two clear stages, from Frederick鈥檚 sister, the Duchess of Brunswick, who, if any body, would know it well.鈥? After these experiments the brothers decided to turn to practical gliding, for which they moved four miles to the south, to the Kill Devil sandhills, the principal of which is slightly over a hundred feet in height, with an inclination of nearly ten degrees on its main north-western slope. On the day after their arrival they made about a dozen glides, in which, although the landings were made at a speed of more than twenty miles an hour, no injury was sustained either by the machine or by the operator. 鈥淢y lord, the court of Vienna has entirely divulged our secret. The Dowager Empress has acquainted the court of Bavaria with it. Wasner, the Austrian minister at Paris, has communicated it to the French minister, Fleury. The Austrian minister at St. Petersburg, M. Linzendorf, has told the court of Russia of it. Sir Thomas Robinson has divulged it to the court of Dresden. Several members of the British government have talked about it publicly.鈥?