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(单词翻译:双击或拖选)
By Mike O'Sullivan
Palmdale, California
06 September 2006
Engineers in the California desert are testing a new communications platform that blends modern electronics with old technology. Developers say a helium-filled balloon carrying high-tech1 equipment can be a cheaper alternative to satellites. The device called a Stratellite could provide communication links to inaccessible2 places.
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Bob Jones in front of the Stratellite prototype
The prototype of the robotic airship is being assembled in a huge hangar where the B-1 bomber3 was built, and where engineers once worked on the experimental X-33 spacecraft.
Bob Jones of the company Sanswire Networks says the balloon will hover4 in the stratosphere at a height of nearly 20,000 meters. From there, it will provide video, voice and data communication to an area the size of Texas.
The Stratellite will offer links for cell phones and television receivers, in what he calls the last-mile solution.
"The last-mile solution - it means that people that live up in the mountains or out in the country where there's no infrastructure5, well, this is the answer," said Bob Jones.
He says a network of Stratellites could offer computer users Internet access anywhere.
"For example, if I'm in the middle of the Mojave Desert, I could open up my laptop and I could communicate," he said.
Jones envisions hundreds of the airships hovering6 high above the United States to augment7, but not replace, existing satellite and ground communications.
"We would like to see a lot of these things flying and providing the needed communications," noted8 Bob Jones.
The Stratellite is a rigid9 airship, unlike a blimp, which has no supporting structure. The new ship is more like the Zeppelins of the 1920s and '30s.
The prototype is a little smaller than an advertising10 blimp, at 37 meters stem to stern. Made with modern materials such as carbon composites, it is incredibly light, weighing only 340 kilograms. The prototype is one-fifth the size of the final version.
Bob Jones with the Stratellite fin
Jones shows a visitor the components11 being crafted in the hangar.
"Yeah, these are the fins," he points out. "They are very light. This is carbon/carbon right here. This is a foam12 core. And you have got carbon with foam sandwiched. So what we are doing is, for the structure - this is the main structure here - we want to make sure that this does not fail."
The Stratellite is intended to stay aloft for 18 months, before operators on the ground return it for servicing.
The airship will undergo testing in coming days. Its technology is unproven, and even if it works, there is tough competition in a crowded industry. But Jones believes the new device will fill a niche13 in the communications market, and will also have other uses.
"It is amazing looking at the potential of this vehicle, not only the use of the communication but for homeland security, utilizing14 something like this to fly the coastal15 area, the border between Canada and the U.S., and down in Mexico and the U.S., and being able to detect people going across," continued Bob Jones.
He says the balloon could be used for search-and-rescue operations and in natural disasters.
Jones says the South American nations of Colombia and Peru and the US military have shown interest in the project.
Sanswire is not the only company looking for new uses of old technologies. Next door, a company founded by Russian immigrants is making advertising blimps, and developing a new hybrid16 airplane-airship to carry tourists and cargo17.
And just down the highway, in the desert town of Mojave, aerospace18 visionary Burt Rutan is working on a craft to carry tourists into space. In 2004, he launched the world's first private spaceship, called SpaceShipOne, from Mojave Airport.
1 high-tech | |
adj.高科技的 | |
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2 inaccessible | |
adj.达不到的,难接近的 | |
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3 bomber | |
n.轰炸机,投弹手,投掷炸弹者 | |
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4 hover | |
vi.翱翔,盘旋;徘徊;彷徨,犹豫 | |
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5 infrastructure | |
n.下部构造,下部组织,基础结构,基础设施 | |
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6 hovering | |
鸟( hover的现在分词 ); 靠近(某事物); (人)徘徊; 犹豫 | |
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7 augment | |
vt.(使)增大,增加,增长,扩张 | |
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8 noted | |
adj.著名的,知名的 | |
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9 rigid | |
adj.严格的,死板的;刚硬的,僵硬的 | |
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10 advertising | |
n.广告业;广告活动 a.广告的;广告业务的 | |
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11 components | |
(机器、设备等的)构成要素,零件,成分; 成分( component的名词复数 ); [物理化学]组分; [数学]分量; (混合物的)组成部分 | |
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12 foam | |
v./n.泡沫,起泡沫 | |
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13 niche | |
n.壁龛;合适的职务(环境、位置等) | |
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14 utilizing | |
v.利用,使用( utilize的现在分词 ) | |
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15 coastal | |
adj.海岸的,沿海的,沿岸的 | |
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16 hybrid | |
n.(动,植)杂种,混合物 | |
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17 cargo | |
n.(一只船或一架飞机运载的)货物 | |
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18 aerospace | |
adj.航空的,宇宙航行的 | |
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