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发表于 2007-9-17 00:19:19
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20070830
Albuquerque, New Mexico, 1978
Photograph by Otis Imboden
Inventor and balloonist Frederick Eshoo drifts over Albuquerque, New Mexico, in his invention, Sunstat, the first maneuverable solar hot-air balloon.
The balloon's clear panels (left) transmit sunlight to heat-absorbing opaque panels opposite, heating the air inside and keeping the balloon aloft. At more than four hours and 12,500 feet (3,800 meters), Eshoo’s first trip was a soaring success.
(Photo shot on assignment for, but not published in, "The Thousand-Mile Glide," March 1978, National Geographic magazine)
阿尔伯克基,新墨西哥州,1978
发明家与热气球驾驶者Frederick Eshoo驾驶着他的发明:Sunstat飞越新墨西哥州的阿尔伯克基,这是世界上第一款太阳能热气球。
热气球的亮面(左)传送阳光到反面的热吸收面,加热气球内的空气以保持气球的升力。在超过4小时3800米的行程后,Eshoo的首航非常成功。
[ 本帖最后由 sock 于 2007-9-19 22:57 编辑 ] |
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