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comment by mk
mk  ·  4829 days ago  ·  link  ·    ·  parent  ·  post: Graphene spun into metre-long fibres
Space elevators?!

Recent concepts for a space elevator are notable for their plans to use carbon nanotube or boron nitride nanotube based materials as the tensile element in the tether design, since the measured strength of carbon nanotubes appears great enough to make this possible.

http://en.wikipedia.org/wiki/Space_elevator





greedo  ·  4829 days ago  ·  link  ·  
This is the best part:

"Construction is conceived as the deployment of a long cable from a large spool. The spool is initially parked in a geostationary orbit above the planned anchor point. When a long cable is dropped "down" (toward Earth), it must be balanced by balancing mass being dropped "up" (away from Earth) for the whole system to remain on the geosynchronous orbit."

mk  ·  4829 days ago  ·  link  ·  
It's so crazy that you could 'drop' down the cable, while you either raise the spool, or raise a cable in the opposite direction, and eventually reach earth.

Can you imagine what a cable dropping from the sky would look like before it was attached?

greedo  ·  4747 days ago  ·  link  ·  
Like a beanstalk!