Space Elevator to Solve World's Energy Shortage

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SUMMARY

The discussion centers on the feasibility of using carbon nanotubes in the construction of a space elevator to generate electricity. Participants highlight the strength of carbon nanotubes, which are six times stronger than iron, but express concerns about their potential to melt under high electrical currents. The conversation references NASA's tether experiment, which faced challenges with current management, raising questions about the viability of a 50,000-mile tether. Key resources mentioned include spaceelevator.com and liftport.com for further exploration of the topic.

PREREQUISITES
  • Understanding of carbon nanotube properties and applications
  • Knowledge of electromagnetic principles, specifically magnetic flux density
  • Familiarity with electrical current management in tether systems
  • Awareness of NASA's tether experiment and its implications
NEXT STEPS
  • Research the electrical conductivity and thermal limits of carbon nanotubes
  • Explore the principles of magnetic flux density and its impact on energy generation
  • Investigate current management techniques in long tether systems
  • Review NASA's tether experiment findings and their relevance to space elevator design
USEFUL FOR

Engineers, physicists, and researchers interested in advanced energy generation technologies, particularly those focused on space infrastructure and materials science.

WarrenPlatts
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If carbon nanotubes are great conductors, and if a wire moved through a magnetic field generates electricity, then a space elevator constructed out of carbon nanotubes should be able to generate a lot of electricity.

Maybe too much. I think the carbon nanotubes would melt. Indeed, if there is a "showstopper" for the space elevator concept, this is probably it.
 
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Carbon nanotubes are 6x times stronger then Iron I don't think they'll melt too easily anyway we should be able to control the amount of eletricty that goes though them.
 
... the Earth doesn't exactly have a large magnetic flux density...
 
Pengwuino said:
... the Earth doesn't exactly have a large magnetic flux density...
Well, I'm thinking of the NASA tether experiment where they extended a tether from a space shuttle and it burned up because the current was too much. If a tether a few hundred yards can't handle all those amps out there, how can we expect a 50,000 mile tether to handle it?
 
What are you talking about?
 
Well I guess I am once against amazed at the power of this planet.
 

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