Skip to comments.NASA Discovers 'Motorway' Network Between Planets
Posted on 07/18/2002 4:13:04 PM PDT by blam
click here to read article
How about this for a compromise:
Since I have #28, I'll claim the L4 & L5's
VadeRetro has #79 so he gets the L1 & L3's
you can have the L2's.......
Two of the points are stable, that is things in there tend to stay in there because the net gravitry force from the two large objects tends to pull them back towards the Lagrange point if they move away from it. Of course if they are moving fast enough, they get out that stable region before the graviational forces can pull them back into it. The other L points are not stable in that way, IIRC. The stable ones are the ones which trail and lead the smaller body in it's orbit around the larger one.
LOL, I saw some science 'fact' article the other day about powering a spaceship with nuclear bombs. Imagine that.
< /irony >
WELL WORTH READING!!
GO for IT!!!
I agree with that statement but would advise Freepers who might enjoy their science fiction to avoid their non-fiction.
Pournelle has me POd everytime I read his articles.
Quite a lot, just from my library
Oath of Fealty
The Mote in God's Eye and The Gripping Hand (aka the Moat around Murchinson's Eye) - from whence the Alderson points
Guessing posts again? I wonder if you can still reply to posts that haven't been posted yet?
I shouldn't think so; now, this is conjecture on my part, and I'll assume RA or some other knowledgeable FReeper will correct me if I'm mistaken, but I assume that the Lagrange points are unstable, in the sense that any minor displacement away from the EXACT point of gravitational balance results in an ever greater gravitational displacement force on an object, NOT a restoring force. IOW, it's like a "saddle" point: there is an equilibrium, but it's dynamically unstable. Any pertubation will cause the object to drift away unless something actively counter-acts the displacement. Hence, I would conclude there shouldn't be much space debris floating about at the Lagrange points.....
It's a matter of proportion not scale. The moon has such points, as does earth. L4 and L5 are 60 degrees as seen from the point at the center of the orbit.
Dan Alderson is a scientist at JPL, by the way.
How much fuel does it take to travel in an orbit? I assume this is yet another example of idiotic journalism. Also, Lagrange points are not a new topic. A Google search will give you several "L5 Society" pages.
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