Travels in the AirJames Glaisher R. Bentley & Son, 1871 - 398 من الصفحات |
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
aërial navigation aëronaut aërostat altitude anemometer appeared atmosphere ballast balloon ascents balloon left barometer beneath blue bulb Calais captive balloon carried caused Champ de Mars clouds cold colour Coxwell Crystal Palace dark decrease descended direction distance Duruof earth effect elevation Entreprenant envelope excursion expedition experiments eyes Fahr fall feet high fell Fonvielle forest Gay-Lussac Godard ground guide-rope heard height higher regions horizontal hour hydrogen hydrogen gas hygrometer immense inches increased inflated instruments James Glaisher journey light minutes past mist moisture moon morning motion mountains nearly Neptune night o'clock observations Observatory ocean Paris Paris Observatory passed Pilâtre de Rozier Pithiviers rain rapid rapidly rays reached rise rope rose Royal Observatory sailing scientific seen shadow snow soared soon sound sunset surface temperature thermometer thick tint Tissandier travelling valve valve-rope vapour velocity Vincent Brooks voyage whilst wind wings Wolverhampton
مقاطع مشهورة
الصفحة 54 - I then drew up my legs, which had been extended before ine, and took a pencil in my hand to begin observations. Mr. Coxwell told me that he had lost the use of his hands, which were black, and I poured brandy over them. I resumed my observations at 2h 7m, recording the barometer reading at 11-53 inches and temperature — 2°.
الصفحة 53 - Whilst powerless I heard the words " Temperature " and " Observation," and I knew Mr. Coxwell was in the car speaking to me, and endeavouring to arouse me, therefore consciousness and hearing had returned.
الصفحة 53 - I laid my arm upon the table, possessed of its full vigour, but on being desirous of using it I found it powerless — it must have lost its power momentarily ; trying to move the other arm, I found it powerless also.
الصفحة 57 - A fourth was thrown out at four miles on descending ; it flew in a circle, and shortly alighted on the top of the balloon. The two remaining pigeons were brought down to the ground. One was found to be dead ; and the other, a
الصفحة 53 - I dimly saw Mr. Coxwell, and endeavoured to speak, but could not. In an instant, intense darkness overcame me, so that the optic nerve lost power suddenly ; but I was still conscious, with as active a brain as at the present moment whilst writing this. I thought I had been seized with asphyxia, and believed I should experience nothing more, as death would come unless we speedily descended. Other thoughts were entering my mind, when I suddenly became unconscious as on going to sleep.
الصفحة 21 - ... ascent, speaking of the novel sensation at first experienced ; of the extreme coldness and dryness of the air at great elevations ; of the painless death awaiting the aerial traveller who should ascend to an elevation too great for his power of endurance, and compared it to that of the mountain traveller, who, benumbed and insensible to suffering, yields to the lethargy of approaching sleep, and reposes to wake no more. Moral energy in both cases, he stated, was the only means of safety. He then...
الصفحة 57 - ... minutes, and on these considerations the balloon must have attained the altitude of 36,000 or 37,000 feet. Again, a very delicate minimum thermometer read —12°, and this would give a height of 37,000 feet ; Mr.
الصفحة 95 - The azure colour of the sky, though resembling the blue of the first ' order when the sky is viewed from the earth's surface, becomes, as observed by Mr. Glaisher in his balloon ascents, an exceedingly deep Prussian blue, as we ascend to the height of five or six miles, which is a deep blue of the second or third order. 2. The maximum polarizing angle of the atmosphere being 45 deg.
الصفحة 79 - ... greater elevations. At the height of three and four miles the view was indeed wonderful : the plan-like appearance of London and its suburbs ; the map-like appearance of the country generally ; and the winding Thames, leading the eye to the white cliffs at Margate and on to Dover, were sharply defined. Brighton was seen, and the sea beyond, and all the coast line up to Yarmouth. The north was obscured by clouds. Looking...
الصفحة 96 - ... angle is 45°. The faint blue which the sky exhibits at the earth's surface is therefore not the blue of the first order, but merely the blue of the second or third order rendered paler by the light reflected from the aqueous vapour in the lower regions of the atmosphere.