Oh, well, I suppose you have had time enough to get used to it, said Castalia, coolly. "Violet, will you ring the bell? It is close to you. Thank you.鈥擫ydia," when the girl appeared, "where is your master?" 双色球的纸怎么涂 Theoretically the two-stroke and the four-stroke cycle engines possess exactly the same thermal efficiency, but actually this is modified by a series of practical conditions which to some extent tend to neutralise the very strong case in favour of the two-stroke cycle engine. The specific capacity of the engine operating on the two-stroke principle is theoretically twice that of one operating on the four-stroke cycle, and consequently, for equal power, the former should require only about half the cylinder volume of the latter; and, owing to the greater superficial area of the smaller cylinder, relatively, the latter should be far more easily cooled than the larger four-stroke cycle cylinder; thus it should be possible to get higher compression pressures, which in turn should result in great economy of working. Also the obtaining of a working impulse in the cylinder for each revolution of the crankshaft should give a great advantage in regularity of rotation鈥攚hich it undoubtedly does鈥攁nd the elimination of the operating gear for the valves, inlet and exhaust, should give greater simplicity of design. No reply. The British R.38 class, embodying the latest improvements in airship design outside Germany, gives a gross lift per airship of 85 tons and a net lift of about 45 tons. The capacity of the gas bags is about two and three-quarter million cubic feet, and, travelling at the rate of 45 miles per hour, the cruising range of the vessel is estimated at 8鈥? days. Six engines, each of 350 horse-power, admit of an extreme speed of 70 miles per hour if necessary. Still she did not move. 6 Then God in his mercy for Adam who was made after His own image and likeness, explained to him, that these were 5,000 and 500 years; and how One would then come and save him and his descendants. The wings of the 鈥楤at鈥?formed a pronounced dihedral angle; the tips being raised 4 feet above the body. The spars forming the entering edges of the wings crossed each other in the centre and were lashed to opposite sides of the triangle that served as a mast for the stay-wires that guyed the wings. The four ribs of each wing, enclosed in pockets in the fabric, radiated fanwise from the centre, and were each stayed by three steel piano-wires to the top of the triangular mast, and similarly to its base. These ribs were bolted down to the triangle at their roots, and could be easily folded back on to the body when the glider was not in use. A small fixed vertical surface was carried in the rear. The framework and ribs were made entirely of Riga pine; the surface fabric was nainsook. The area of the machine was 150 square feet; its weight 45 lbs.; so that in flight, with Pilcher鈥檚 weight of 145 lbs. added, it carried one and a half pounds to the square foot. Apply to 7 "Look at that great light, and at those many songs of praise, and at that host standing outside who won't come into our cave. Why don't they tell us what they want, where they are from, what the meaning of this light is, what those praises are, why they have been sent to this place, and why they won't come in?