Superconducting levitation and transportation

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SUMMARY

This discussion centers on superconducting levitation and its potential applications in transportation, particularly regarding cars. Superconductors exhibit the unique property of expelling magnetic fields, enabling objects to levitate above magnets. While maglev trains utilize superconductors for propulsion through magnetic repulsion, the feasibility of levitating cars is acknowledged, with existing technologies like junkyard cranes demonstrating magnetic levitation. The conversation highlights the challenges of cooling superconductors compared to traditional magnets.

PREREQUISITES
  • Understanding of superconductors and their properties
  • Familiarity with magnetic levitation (maglev) technology
  • Knowledge of electromagnetism and magnetic fields
  • Basic principles of thermodynamics related to cooling systems
NEXT STEPS
  • Research the principles of superconducting materials and their applications
  • Explore the technology behind maglev trains and their operational mechanics
  • Investigate existing magnetic levitation systems used in industrial applications
  • Study the challenges and advancements in cooling superconductors for practical use
USEFUL FOR

Engineers, physicists, transportation innovators, and anyone interested in advanced transportation technologies and superconducting applications.

Mackay1011
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Hey, think this post belongs in this section.

I've seen a few videos about superconducting levitation and it is used on trains, correct?

I was wondering if it is possible to levitate an object like a car and propel it forward?


Heres a clip, please don't delete :) watch it please :D

http://video.google.co.uk/videoplay?docid=7459584142767298148&q=Superconducting+Levitation&total=21&start=0&num=10&so=0&type=search&plindex=0
 
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One of the properties of superconductors is that they don't allow a magnetic field to pass through them - this is what allows a small piece of supercoductor to float above a magnet.

Even when superconductors are used in maglev trains they are used for a different reason. In the tracks are permanent magnets, in the train is a magnetic coil repelling these magnets, supercoductor magnets could be used here because it is possible to make a very large electromagnet with no loss of power due to heating. But because of the difficulty of cooling the supercoductor it may be cheaper to use a regular magnet and waste the heat.

It's certainly possible to levitate a car using a magnet - junkyard cranes do it all the time!
 

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