Bare Footin’
Hey little gal with the red dress on
I bet you can barefoot all night long
Take off your shoes and throw them away
Come back and get them another day
We're barefootin', we're barefootin'
We're barefootin', we're barefootin'
To an individual human on the earth, the surface looks
flat. However, this is only because the distances
that the individual enounters are probably much smaller than the radius of the
Earth. To an ant on the surface of a beach
ball, its surface may also appear flat. But just like the beach ball, the surface
of the Earth is actually spherical. If
it WERE flat, then a stick perpendicular to the ground at the equator would cast
no shadow at noon, and that same stick at a higher latitude, say London, should
also cast no shadow. ( The shadow in London would be shortest at noon, but there would still
be a shadow.) If the Earth were flat, then
the highest points (e.g. the mast) of a ship on the horizon would NOT ALWAYS be
visible before the rest of the ship. These, and other apparent paradoxes, can be explained if the Earth is round but
can not be explained if the Earth is flat.
Thus the perceptions of an individual are NOT the truth.
It is assumed that space is flat. This, however, is also just
an assumption. If the surface of space is hyperbolic, curved, then any conflict betwwen the age and distance
of the universe, the Planck Length, the rotation of galaxies, the inflation of
the early universe, etc. may all be explainable. But that requires giving up the perception
that the space is flat. Space may be
bare, but that does not mean that it is flat.
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