Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Russia Studies Space-Elevator Clusters For Moon
Russia's Space Research Institute has been studying the idea of a space-elevator cluster to economically deliver payloads from the Earth to the Moon and back.
According to Russian studies and experiments, the space-elevator cluster should consist of several cable systems. The first is in a low circular Earth orbit, and the second in a low elliptical Earth orbit. The third cable system would be in a circular equatorial lunar orbit. By adjusting the length of the tethers, it will be possible to change each orbital system's angular speed of rotation.
Mission payloads would be exchanged from one orbital cableway to another. Payloads from Earth to the Moon would be placed in first system, which would "sling" them higher to the second system, and then to the Moon, where payloads would be caught by the third system.
The intent of this system is to save on the huge energy costs of moving freight to the Moon. According to the Space Research Institute, the new system will weigh 28 times less than the payload it will deliver to the Moon during its entire service life. In comparison, the fuel burned by conventional rocket engines will weigh 16 time more than their payload.
In reading about this, I found myself wondering where the energy for this will come from. Conservation of energy requires that the lowest tether, once it transfers energy to the payload, and boosting it higher, will fall to a lower orbit. How will it be raised again?
(MXER tether system slings payload)
One way is suggested by TUI, which is looking at using special tethers (cables) that can "push" against the Earth's magnetic field to move back up into position.
(MXER tether system regains orbital attitude)
This "new" Russian technology is starting to look a lot like the MXER - Momentum-eXchange/Electrodynamic Reboost tether technology - now under development by NASA. MXER research is proceeding in five different research areas: aerocapture; advanced chemical propulsion; solar electric propulsion; solar sail technologies; and space-based tether propulsion.
With the entry of the Russians into this area, it sounds like the race to build a "space railway" - a system of cableways that can sling payloads to the moon - is well underway.
Interested in space tethers? Check these out:
- Electrodynamic Tethers Boost Spacecraft
An electrodynamic tether (EDT) is a simple idea, but one with an amazing number of uses. - Non-Conductive Tethers - Free Artificial Gravity In Orbit
Tethers connecting satellites or space stations have some interesting effects even if they are not conductive. - Terminator Tether - EDT Solution To Space Debris
Studies have shown that low Earth orbit is not a limitless resource and should be managed more carefully.
Read more about the Russian space-elevator clusters and NASA's MXER technology.
Scroll down for more stories in the same category. (Story submitted 12/4/2006)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 1 )
Related News Stories - (" Space Tech ")
ISS Plagued By Leak - Again!
'There were perhaps a dozen bladder-like objects in the tunnel...' - Robert Heinlein, 1948.
Sunbird Pulsar Fusion Like Leinster's Space Tug
'It was a pushpot, which could not possibly be called a jet plane because it could not possibly fly. Only it did.' - Murray Leinster, 1953.
Crystalline Structures In Space, You Say?
A massive space borne lifeform from ST:TNG.
Amazing Photonic Crystal Light Sail
'That sail will be twenty thousand miles at the wide part.' - Cordwainer Smith, 1960.
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.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Grok And The City Fathers From 'Cities In Flight' By James Blish
'Chris, the City Fathers are not interested in your welfare; I suppose you know that. They're interested in only one thing: the survival of the city.'
Why Not Move A Warehouse District?
'Did you never see a moving house before?'
Will An AI Found A New Religion?
'You must decide how you will worship Me.'
Terraformer Industries Make Methane
'Drake was the young spatial engineer he employed to terraform the little rock...'
I Need An Outdoor Spherical Display
'Usually a spherical display hovered in the centre...'
Worm Disrupts Physics Simulations Undetected For A Decade
'It diverts integers of the data, the fundamental message-units, so that they no longer agree.'
Muxcard Redditor's DIY Credit Card-Sized Computer
It's a computer, but just barely.
'Soft Assembly' Fashions That Fashion Themselves On The Wearer
'Clothes are no longer made from dead fibers of fixed color and texture that can approximate only crudely to the vagrant human figure...'
Orwell's Nightmare Of AI-Written Novels Comes To Pass
'Books were just a commodity that had to be produced, like jam or bootlaces.'
ISS Plagued By Leak - Again!
'There were perhaps a dozen bladder-like objects in the tunnel...'
Ridiculous 'Ghost Murmur' Tech Still Science Fiction
'...it rears and spreads its fan. It can pick one man out of a crowd.'
Outdoor Video Screens Can Be Arbitrarily Large
The Shape of Things To Come
Infrared Contact Lenses To See In The Dark
'I can see in the dark, Case.'
What'll You Have? Extinct Animals Returned, Or Synthetic Eggshells?
'...a new plastic with the characteristics of an avian eggshell.'
Sunbird Pulsar Fusion Like Leinster's Space Tug
'It was a pushpot, which could not possibly be called a jet plane because it could not possibly fly. Only it did.'
RentAHuman App Lets AI Agents Hire Humans
'She wouldn't stop until Antar had told her everything he knew about whatever it was that she was playing with on her screen.'
