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Сторінка 279
Three miles sphere , and there launched upon its above the ground black - out may adventurous career , or might be occur , and additional breathing oxygen fitted with auxiliary air propulsion becomes necessary , for the air has that ...
Three miles sphere , and there launched upon its above the ground black - out may adventurous career , or might be occur , and additional breathing oxygen fitted with auxiliary air propulsion becomes necessary , for the air has that ...
Сторінка 281
At a height of 20,000 feet the oppositely to the main forward driving two systems approach equality when jets would control the fall , or the plane the speed is 500 miles per hour .
At a height of 20,000 feet the oppositely to the main forward driving two systems approach equality when jets would control the fall , or the plane the speed is 500 miles per hour .
Сторінка 283
By means of the jets the eastward speed of about 1000 miles per hour retained from the earth might first be annulled . It would then be driven outwards within the margin of the shadow . Five days at an average speed of 200,0 miles an ...
By means of the jets the eastward speed of about 1000 miles per hour retained from the earth might first be annulled . It would then be driven outwards within the margin of the shadow . Five days at an average speed of 200,0 miles an ...
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