By laws of
relativity earth revolves around sun owing to the bending of space by sun’s
mass, leading to a curved path that earth traverses around sun.
There is still
another approach to the problem. While earth is revolving around the sun, let’s
assume for a moment that sun suddenly annihilates. How would the earth then
move?
Apparently,
it will fly off on the tangent from the point where it was located when Sun
annihilated. The question is what happens to the tilt of the axis of rotation? Will
be maintained in one specific direction or will the tilt be changing its
direction.
Logically,
Fig 1A should be representing the correct solution in case sun annihilates. As
it most concurs the state of scientific explanation currently.
But factually,
earth is precessing; sweeping a cone around the axis that stands perpendicular
to the line that connects the position of earth’s centre as earth travels in a
straight line. Figure 1B will be the factual
answer. Reason – earths’ precession of about an year around the sun line (path)
that is created by the path that earths’ centre traverses through an year.
Conversely,
let’s assume earth to be a celestial rotating object with the axis of rotation
being tilted. Its path would take the straight line showcased in Fig 1A.
maintaining the tilt in one single direction. Now let’s assume that earth is
trapped in sun’s gravity for the first time. How will it now move? By general
theory of relativity it will maintain angle that the earth’s axis makes with
the axis of sun (running north to south), throughout the entire cycle of
rotation. Hence the north hemisphere would have pointed farther from the north
pole of the sun throughout the year. But since we know that there is in reality
a movement around the path of earth by earth. It means that earth is precessing
against sun as is apparent from Fig 1B. Curling of space and resultantly
curving of the path of earth, only leads to movement of earth with its tilt
maintained towards sun throughout the revolution (north hemisphere remains
closer to sun throughout the year). Now since factually we know that the
northern and southern hemispheres alternate each other in closeness to sun
every half year periodically and gradually. We have no option but to introduce
a new motion that is showcased in Fig 1B and which is precession of earth.
Therefore,
earth sweeps the cone of precession in approx. one year and 20 minutes.
And
that which is currently assumed as precession is actually the different between
precession and one year, which is equal to 20 minutes.
You
are proposed to read my previous 2 approaches on precession of earth as well.
Both are available on researchgate.
Author: Deepak Loomba
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