to me to even consider the energy stored in the
pressurisation.

My point was simply that the material that made the beanstalk feasible
compared to conventional rocketry would help make rocketry more competitive
against a beanstalk.


certainly, very resistant and light material may lead to much
simplified design , for tanks and engines (a hose that would not breaak
whatever the way you plug it..etc..), and maybe (??) pressurized tanks
would get rid of the pumps

in this way , a rocket may be assembled within a few weeks and ready to
launch with reduced infrastructure ..

then the cost of the fuel may become a concern ... which is not today,
compared to the overall costs of launches

building an elevator would anyway requires some conventionnal launches
..


we may never get this magic material for the elevator , though it seems
now not completely impossible

I read somewhere that the resistance achieved and tested for carbon
nanotube/epoxy composite was half way to the required strentgh .. with
hopes to do better

the price of the material may now be over ¤/$ 1000 per gram ...

IF someone finds a way to produce nanotubes by the ton , then many
things may have to be reconsidered !!

that may be tomorrow , that may be never ...

I am very amused by the perspective of building bridges unwinding
something that looks like scoth tape ;-)

more than this, some people seems no to believe (or make others believe
they believe) in the space elevator

example:

http://www.liftport.com/
(they even have a date for it : Countdown to Lift: April 12, 2018 ;-)

or
http://www.highliftsystems.com/



(or maybe this one ;-) : http://www.spaceelevator.ca/ when everything
else fails ;-)

--
Julie
"please save Yuri"
http://membres.lycos.fr/andromedanews