Orbiting 1,075 miles above the Earth, a 250 foot wide, inflated, reinforced nylon wheel was conceived in the early 1950s to function as a navigational aid, meteorological station, military platform, and way station for space exploration by rocket pioneer Wernher von Braun. The wheel shaped station could be easily rotated creating artificial gravity so that the astronauts would not suffer the effects of prolonged weightlessness. Von Braun and his team favored building a permanently occupied Earth orbiting space station from which to stage a lunar exploration program. But in the 1960s NASA adopted the Apollo Program, which called for astronauts to transfer to a lunar landing vehicle after achieving lunar orbit, bypassing the construction of von Braun's wheel
圖片編號:
5714995
拍攝者:
Innovari
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 288 | JPG | 13 | |
標準授權 | S | 800 x 480 | JPG | 15 | |
標準授權 | M | 2500 x 1501 | JPG | 18 | |
標準授權 | L | 2885 x 1732 | JPG | 20 | |
標準授權 | XL | 3650 x 2191 | JPG | 22 | |
標準授權 | MAX | 4470 x 2684 | JPG | 23 | |
標準授權 | TIFF | 3536 x 2123 | TIF | 39 | |
進階授權 | WEL | 4470 x 2684 | JPG | 88 | |
進階授權 | PEL | 4470 x 2684 | JPG | 88 | |
進階授權 | UEL | 4470 x 2684 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
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UEL
標準授權 | 480 x 288 px | JPG | 13 點 |
標準授權 | 800 x 480 px | JPG | 15 點 |
標準授權 | 2500 x 1501 px | JPG | 18 點 |
標準授權 | 2885 x 1732 px | JPG | 20 點 |
標準授權 | 3650 x 2191 px | JPG | 22 點 |
標準授權 | 4470 x 2684 px | JPG | 23 點 |
標準授權 | 3536 x 2123 px | TIF | 39 點 |
進階授權 | 4470 x 2684 px | JPG | 88 點 |
進階授權 | 4470 x 2684 px | JPG | 88 點 |
進階授權 | 4470 x 2684 px | JPG | 88 點 |