on 2/28/03 10:26 AM, space-elevator@yahoogroups.com at ... This is quite correct and vacuum lift will only add about 10% to the maximum altitude for a balloon....
... tether systems demonstrator platform which could be used to test tether structure performance and tether climber systems. As a launch platform serving...
How flexible will the ribbon be? Would it be possible to give the climbers interlocking ridged rubberized treads simular to that of construction equipment ...
... The Ribbon is under many tons of tention, the wheels of the climber would have to be exerting tons of pressure to alow it to flex the ribbon in this way....
... What about landing? You'd still need a streamlined structure then. ... safe ... vector with ... Why not just switch straight to rockets, and save the...
In a message dated 3/2/2003 1:07:35 PM Central Standard Time, ... Not in nearly the same way. Ideal reentry form is a "blunt body." That's easier to design...
GEddieA95@...
Mar 2, 2003 11:21 pm
1698
... Oh, but it's so much fun to ponder floating rocks. ... Sounds like a vacuum to me. IF, of course, we make allowance for stray photons, dark matter,...
One problem with macroscopic buckyballs: C60 is as spherical as it gets, and as more and more carbon atoms are added to the structure, it becomes more and more...
... Icosahedron. The sharp bits are at the 12 pentagons. I suspect the points are more conical than polyhedral; no reason for a discontinuity in the middle of...
Ben Sibelman writes; ... I haven't been too concerned about a reusable vehicle because the point of this approach is to make a vehicle so simple that its...
in my experince, carbon is best modeled by tensegrity structures (hi there, JeffB!) this gives c-60 an icosododecahedral shape. since nature takes the path of...
hot air balloons, airplanes, & steel-hulled ships all depend on the same thing to function- a net imbalance in the forces involved, discernable by vector...
to avoid dimpling and perhaps collase, i recommend the use of 'space-frames" which are, roughly speaking. trusses (like the oct-tet truss) bent into spheroid...
the dirigible is interesting. but lifting the necessary fuel & engines sounds like a lot of work... i propose using them to lift more critical payloads (eg,...
... problems ... atmosphere is ... that the ... of that ... and the ... would be a ... the first ... a big ... reuse. ... Here's another way to recover...
truncate a dodecahedron or an icosahedron & you get an icosadodecahedron. my error is in referring to the shape of c-60 as icosadodeca.... c-15 & c-45...
duh! why not just grab the balloons directly when they reach their atmospheric limit, pull them *and* their payloads the rest of the way to the geodesic...
... (usefull links removed) ... exactly. ... uh huh. this is where tensegrity stucturing comes in, of which geodesics is a special case. when you explicate the...
... The carbon atoms in fullerenes have three bonds, not eight; that is a defining feature. It is no disparagement of stick-and-rubberband constructions...
... oops! this creates a 'nucleated' strucure... what we need is *30* struts, nestled inside groups of 4 tendons... 120 tendons, 30 struts 1 tensegrity...
... stick="strut", rubberband="tendon" in your terms. was that really so hard? ... monoxide is an exception. in a fullerene each atom has two single bonds and...
... oh. <mild disappointment> ... nope. (&that's what makes it toxic- one carbon, +4 & one oxygen, -2 = a net -2) ... i'm not convinced. see, for ex, benzene ...
... and in a diamond, #bonds/#atoms = 2. ... what about it? each carbon is bonded to two carbons and one H; the C-C bonds are alternately single and double. ...
... Agreed that's one way to look at it, but I've definitely seen tables in which carbon's valence is given as "4 or 2". But that's a digression to a...
in bezene, c has valence 4, with alternating single/double bonds,(stick & ball/line & dot) yes. presumably, the 'stick & ball' buckyball has similar...
... I wonder if you could get by using gas drag (ie, wind). After all, a surface 'synchronous' orbit is rather poorly defined for a planet with a surface...
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