Half a croissant, on a plate, with a sign in front of it saying '50c'
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Aether

A building that contains magnetically levitated "spaceships", "spacestations", and a model sun in the center
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You know how like poles of a magnet will repulse, right? Well, it works along that principal. To prevent the craft and such from unfortunately flipping opver, the entire outside of the craft will be the same magnetic pole as the inside of the building. This will cause the craft to levitate in the building. Electromagnets would be used to boost the magnetic field, allowing the craft to raise or lower itself, and small ducted fans would be used to maneuver.

In the center would be placed a model of the sun, i.e. a ball that is surrounded with LEDs that shines with a yellow colour. It would be held up by virtue of it's magnetic repulsion.

Surrounding this 'star' would be various stations and asteroids, also held up thanks to the electromagnetic force.

People would enter this park? by getting into a small craft, attached to the side via electromagnets, which would then detach and fly around for a bit, docking at various stations and such, before taking the passengers back to earth. Addititonal 'sectors' could be added on by linking them with a tunnel.

Later, hotels could be built into the sector...

Selky, Sep 27 2009

Magetiworld MagnetiWorld
Something vaguely similar [Selky, Sep 27 2009]

Planequarium Planequarium
Something wetter [theircompetitor, Sep 27 2009]

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       Magnetic fields drop off exponentially with their distance. So, you can use them to hover something just above the ground, as in maglev trains, but free 3D navigation is out - it would take far too strong fields, and figuring out the interactions of all those fields with each other would be very, very difficult, too.
jutta, Sep 27 2009
  

       The question is: how high do we need to go? Being able to navigate a couple of meters down and up would be nice, to say the least.   

       The craft would hover a couple of meters above the floor in that case, and use ducted fans to raise it's height or thrust against the magetic field.
Selky, Sep 27 2009
  

       I wonder if the 'spooky interaction' is a clue of the true aether?
wjt, Sep 27 2009
  

       Whilst the scientific theory is out, i like the basic principle of the idea, it'd be nice to go floating around in outer space indoors.
kaz, Sep 27 2009
  

       This place would be like hell for any people with pacemakers or metal plates in their body.   

       Also, it would wipe your credit card (Or is that just an urban legend?).
DrWorm, Sep 27 2009
  

       //Also, it would wipe your credit card//
Funny, Disneyland has a similar effect!
MikeOliver, Sep 28 2009
  

       //the entire outside of the craft will be the same magnetic pole as the inside of the building// magnetic monopole = bad science
loonquawl, Sep 28 2009
  

       No, it's not. Take two bar magnets, and attach them together so that the two north poles are linked (you'll have to force it). Now, each end of the magnet is a south pole.   

       I never said it was a monopole.   

       [DrWorm] You don't have to take your credit card with you. And I don't know that many people who have plates in their body that are made from either steel, nickle, or cobalt. Most of the time they use titanium, which isn't magnetic.
Selky, Sep 28 2009
  

       Your point is good, [Selky]. However, I recommend that any loose metal be kept out of this place, because it would soon become a lethal projectile.
DrWorm, Sep 28 2009
  

       That again depends on what type of metal it is. Only Nickle, Iron, and Cobalt are magnetic, as well as some rare earth metals.
Selky, Sep 28 2009
  
      
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