Third or fourth dimension?

  • Thread starter Bullhead
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If a globe is representative of the third dimension, what does a spinning globe represent? As we move through space and time, are we not interacting within the fourth dimension?
 

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PeroK
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Cue the intro to The Twilight Zone:

 
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If a globe is representative of the third dimension, what does a spinning globe represent? As we move through space and time, are we not interacting within the fourth dimension?
Yes, but so what? A point on a sphere (a globe) can be described by three coordinates. If the sphere is spinning, you need three coordinates to locate the spatial location of the point, and a time coordinate to identify the specific time.
 

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