What is a space elevator?
A Space Elevator, or more specifically the LiftPort Space Elevator, will consist of a ribbon made of a very strong and very light material, carbon nanotubes, anchored to the Earth’s surface at the LiftPort Station with the other end reaching into space. By making the ribbon long enough, and attaching a small satellite as counterweight, the Earth’s rotation will provide enough centrifugal effect to overcome the pull of gravity and keep the ribbon taut. The LiftPort Space Elevator will then provide a permanent bridge between earth and space. Elevator cars will be robotic «lifters» which will climb the ribbon to deliver cargo and eventually people to orbit or beyond.
Who is LiftPort Group?
LiftPort Group, founded in April, 2003, is a group of companies dedicated to building the LiftPort Space Elevator. Our goal is to provide the world a mass transportation system to open up the vast market opportunities that exist in space, many of which haven’t even been imagined yet, to even the smallest entrepreneur. These new markets can only become viable through safe, inexpensive, routine access to space. Our motto is, «Change the world or go home,» and we strive each day to make that change a reality.
vía LiftPort Group – The Space Elevator Companies – Home.
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Is good to see that a differentiation with other proposed systems is being made, however it must be kept in mind that different systems may not be exclusive of each other. Historically practical systems are the result of unexpected combinations.
For example; at the last Eurospaceward conference I suggested colleagues working in developing long strands of CNT to find a temporary solution consisting instead of closed loops of already available short strands (Luxembourg, December 4 and 5, 2010). The short strands can then be arranged like links in a chain and subsequently into a long mesh which will resolve the immediate problem of cable length. This can be done by using the van der Waals forces that keep the molecules together.
I wish I had the money to do/pursue this line of research myself. However, since this is beyond my purse I hope other scientist will pick up the challenge which would benefit not only the SpaceShaft and other technologies but especially the LiftPort design since their system is critically dependant of the requirement of trustworthy CNT cable.
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