|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
The Next Best Thing to a Space Elevator
Well, I'm glad that my speculation that a railgun, even on Earth, is a
useful step in obtaining very cheap access to space seems to have some validity, as the same idea is being studied by those who should know what they're doing: http://www.nasa.gov/topics/technolog...tallaunch.html This news item dates from September. The scheme proposed, though, appears to involve the railgun-assisted launch of an aircraft, which will then launch a rocket from a high altitude. It is not clear to me that a railgun will really benefit an aircraft that much, since aircraft are already much more economical vehicles than space rockets. But then, a railgun that accelerates its payload to 600 miles per hour is much more modest than one that accelerates it to 16,000 miles per hour. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Space Elevators, terrestrial and lunar - Space Elevator is... | oldcoot[_2_] | Misc | 1 | January 20th 09 03:58 PM |
so THAT's what a space elevator is? | [email protected] | Space Shuttle | 6 | February 9th 08 01:12 PM |
space elevator | Alfred Hitchcock | Misc | 2 | April 10th 04 05:20 AM |
space elevator | Rod Mollise | Amateur Astronomy | 116 | January 17th 04 08:31 PM |
Space Elevator? | Jorge R. Frank | Space Shuttle | 17 | January 15th 04 12:10 AM |