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Post Info TOPIC: space elevators


L

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Space elevators
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The day may not be far away when an elevator attendant asks your preferred destination - low earth orbit (LEO) or geostationary orbit (GSO). Research is fast progressing in advanced countries on designing a space elevator, according to an Indian space expert.
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L

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Space Elevator
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Travel to space in an inflatable elevator
The idea of a space elevator that zooms people into space has long been the dream of scientists, sci-fi writers such as Arthur C Clarke and even children's writer Roald Dahl. It was Dahl who famously wrote 'Willy Wonka and the Glass Elevator'.
But a major hurdle in realising the dream has been finding the right construction material. Steel-reinforced concrete structure technology, as used in tall towers like the Burj Dubai, is heavy and expensive and cannot withstand altitude and atmosphere pressure.
Now, three scientists from York University in Toronto, Raj Seth, Brendan Quine and George Zhu, have proposed an inflatable space tower up to 20 km tall, which can carry people and payloads into space.

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RE: space elevators
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Space elevator may be possible thanks to revolutionary new material
The idea of a space elevator to allow for quick and easy transport to a space base is not new, but we may be getting closer to it becoming a practical reality. That's because a new form of carbon ribbon that's ultra-flexible and super-strong could be just what is needed to construct the first working model.

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The prospects for the space elevator have been shaken up with a simple prototype using a broomstick.
Age-Raymond Riise of the European Space Agency demonstrated the device at a space elevator conference in December.
The project could see a 100,000km long tether anchored to the Earth as a "lift into space" for cheaper space missions.

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In 1975, Jerome Pearson wrote a great paper on space elevators that became the basis for excellent work by Brad Edwards including his 2002 book with Eric Westling, The Space Elevator: A Revolutionary Earth-to-Space Transportation System. For decades elevator enthusiasts have had their hopes pinned on carbon nanotubes or graphite whiskers as they were called in Pearsons era.

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