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First
consider case with little mass (little
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curvature)
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Ant
(in 2-d world) can move in straight line
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from
point A to point B.
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Add
mass to create curvature in extra
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dimension
invisible to the ant.
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In trying to go from point A to
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point B, fastest path is curved one
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which avoids the deepest part of the
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well.
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Ant will be delayed by the extra
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motion in the hidden third
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dimension.
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Both effects verified in sending photons past
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the sun:
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Bending
of starlight during solar eclipse
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Delay in
signals from spacecraft on
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opposite
side of the sun
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