Inflatable Space Tower Prototype Assembled
An inflatable space tower tall enough launch spacecraft has been proposed by Brendan Quine, Raj Seth and George Zhu at York University in Toronto, Canada. If the tower is built on a suitable mountain peak it could reach an altitude of about 20 kilometers.
(Inflatable space tower prototype)
The team envisages assembling the structure from a series of modules constructed from Kevlar-polyethylene composite tubes made rigid by inflating them with a lightweight gas such as helium. To test the idea, they built a 7-meter scale model made up of six modules (see above image). Each module was built out of three laminated polyethylene tubes 8 centimeters in diameter, mounted around circular spacers and inflated with air.
To stay upright and withstand winds, full-scale structures would require gyroscopes and active stabilization systems in each module. The team modeled a 15-kilometer tower made up of 100 modules, each one 150 meter tall and 230 metres in diameter, built from inflatable tubes 2 meters across. Quine estimates it would weigh about 800,000 tonnes when pressurized - around twice the weight of the world's largest supertanker.
Fans of science fiction writer David Brin may recall the towering "Needles from his 1980 novel Sundiver.
...the few times he had left Earth before, rising and returning by balloon, there have been the other ships to watch, bright and busy as they floated up to Power Station or back down the pressurized interior of one of the Needles.
Neither of the great Needles had ever been boring. The thin ceram walls that held the twenty-mile towers at sea-level pressures had been painted with gigantic murals -- huge swooping birds and pseudo science-fiction space battles copied from twenty-century magazines. It had never been claustrophobic.
Via New Scientist; thanks to Erik Nodacker for submitting the story and the tip.
Scroll down for more stories in the same category. (Story submitted 6/10/2009)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 7 )
Related News Stories -
Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.' - Arthur C. Clarke, 1978.
Espresso Telescope Searches For Exoplanets
'These instruments were the wonderful ones our astronomers had perfected.' - Edmond Hamilton, 1936.
Manned Maneuvering Unit From 1984
'The glittering little rocket bolted to the black iron behind him.' - Jack Williamson, 1933.
Astronaut Gets Younger In Space
'So what we're looking for now is not an antibiotic - an anti-life drug - but an anti-agathic, an anti-death drug...' - James Blish, 1957.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Swarm Of Mindless Robots Works Together
'Very tiny pseudo insects that... can unite to form a superordinate system.'
SpotMini Robot Dog, Autonomous And On Sale In 2019
Great, an autonomous slamhound. It is cute, though.
RoboFly Is Laser-Powered, Adorable
Don't swat this fly!
MSG Sphere Las Vegas, ala Star Wars
'The smoky globe, hung in the vault, was shot with colored light...'
Tetraplegics Dominate Avatar Races
Well, just speaking brain-to-computer...
MIT Ampli Blocks Build Biomedical Devices
Damn it Spock, I'm a doctor not an engineer!
UberAIR Asks For Skytaxi Landing Prototypes
You know you want to ride in one.
Boring Tunnel Almost Ready
Your underground future is calling!
Handheld Human Skin Printer
It outputs a thin wad of uniflesh.
Healthy Fast Food Courtesy Of Robot Chefs
'The electric cook was stirring empty nothing in a pan, with a zeal worthy a dozen eggs.'
Mass Production Of In Vitro Meat From One Sample
They're Assimilating Our Culture, That's What They're Doing
Amazing 'Hybrid' Solar-Powered Sea Slug Does Photosynthesis
Thank goodness for Star Trek.
Retinal Prosthesis Uses Organic Printing Inks
We can rebuild you - well, your eyes, maybe.
Should You Submit Your DNA To A Database?
Consumer DNA services are often inaccurate.
Squid-Like Robots Soon To Be 3D Printable
'It was a chemotactic artificial jellyfish designed to slither...'
Humans Evolve Deep Diving Abilities
Sounds like '60s sci-fi to me.
More SF in the News Stories
More Beyond Technovelgy science news stories