Mudcat Café Message Lyrics & Knowledge Personal Pages Record Shop Auction Links Radio & Media Kids Membership Help
The Mudcat Cafeawe



User Name Thread Name Subject Posted
HuwG BS: Space Elevator in work (61* d) RE: BS: Space Elevator in work 29 Sep 08


I've been re-reading Kim Stanley Robinson's "Red Mars". Robinson's cable was ten meters in diameter. It weighed six billion tons. Its anchor point in orbit was an asteroid named "Clarke", which weighed seven and a half billion tons.

Clarke would have been outside the asynchronous orbital altitude of 17,049 Km, measured from the surface. My calculator bashing suggests that Clarke is very roughly 2944 Km beyond the asynchronous orbit, at an altitude of 19,993 Km.

The system can be treated as a single mechanical unit with its centre of gravity at the asynchronous altitude.

When the terrorists pulled the cable out of Clarke, the cable suddendly became a separate unit with a cen


Post to this Thread -

Back to the Main Forum Page

By clicking on the User Name, you will requery the forum for that user. You will see everything that he or she has posted with that Mudcat name.

By clicking on the Thread Name, you will be sent to the Forum on that thread as if you selected it from the main Mudcat Forum page.
   * Click on the linked number with * to view the thread split into pages (click "d" for chronologically descending).

By clicking on the Subject, you will also go to the thread as if you selected it from the original Forum page, but also go directly to that particular message.

By clicking on the Date (Posted), you will dig out every message posted that day.

Try it all, you will see.