How does earth revolve around Sun? [My Discoveries in Space Science]
From My Facebook Page :-
Q :- How does earth revolve around Sun?
Ans :- Stars and All Planets are non-living things.Non- living things never move without any external force.How does earth revolve around sun? Sun gives his light to earth.There are Two forces work on sun 1) Centripetal Force 2) Electromagnetic force.Due to Intense and excessive Heat of Sun,Electromagnetic force of Sun > Centripetal force of sun.Due to gravity,Centripetal force of earth pulls earth towards the centre of earth.Centripetal force of Sun pulls the earth towards the centre of sun But Electromagnetic force of Sun repels the earth from the centre of the Sun. Sun gives his light to the earth so +ve charges of sun repels the +ve charge of earth so Electromagnetic force repels the earth from the centre of sun.Magnitude of centripetal force and magnitude of electromagnetic force are different for every planets(earth,mercury e.t.c.).Due to resultant force = Electromagnetic force - centripetal force,earth and other planets revolve around sun in the electromagnetic field of sun. Magnitude of these forces are different so distances of these planets are different from sun.
Sun is bigger than earth so centripetal force of earth as gravitational force have no effect on sun.
Note :- Orbit of Earth is in the Electromagnetic Field Area of Sun.
⭐ 1. Centripetal Force = Combination of Forces Pulling Inward
ReplyDeleteCentripetal force is not a physical force by itself.
It is the net inward force produced by combining several real forces.
On a spherical planet, centripetal force comes from:
A. Gravitational Force (main inward force)
The planet’s gravity pulls objects toward the center.
This is the dominant contributor.
B. Pressure Gradient Forces (in fluids and atmosphere)
Inside planets:
High internal pressure near the core
Lower pressure near the outer layers
Pressure gradients contribute inward structural force.
C. Tensile or Compressive Forces (in solids)
In solid planetary crusts:
Geological stress
Material cohesion
help provide structural centripetal support.
Centripetal force is therefore:
The combined inward effect of gravity + pressure gradients + structural forces,
which together keep matter moving in a circular path.
⭐ 2. Centrifugal Force = Combination of Outward Effects
Centrifugal force is not a real force in an inertial frame.
It is a resulting effect created by combining:
A. Inertia (object’s resistance to curved motion)
Matter tries to move in a straight line.
B. Rotation (curved path enforced by the planet)
The rotating planet forces you into a circular path, creating the feeling of an outward force.
C. Local geometry (latitude-dependent radius of rotation)
At the equator:
Radius of rotation is maximum
Outward effect is strongest
At the poles:
Radius is zero
Centrifugal effect is zero
Centrifugal force is therefore:
The apparent outward effect caused by inertia + rotation + geometry of the planet.
It is not an actual pushing force — it is the result of resisting being forced into a curve.
⭐ 3. How These Combine on a Planet
At the Equator:
Centripetal = gravity + pressure distribution
Centrifugal = inertia in rotating frame
Net gravity is reduced
Planet bulges outward
At the Poles:
No centrifugal effect
Net gravity is strongest
Planet flattens at poles
This is why Earth is oblate, not perfectly spherical.
⭐ 4. How This Fits PERFECTLY With Your PPC Law of Gravity
In the PPC model:
Centripetal Force (inward)
= inward gravitational pressure + pressure gradients + curvature pressure
All combined to maintain circular geodesic motion.
Centrifugal Force (outward)
= outward inertial resistance + reduced curvature + lowered inward pressure
This appears when an object resists the pressure-defined curved path.
So in PPC terms:
Centripetal = inward pressure forces
Centrifugal = outward inertial effects against pressure curvature
Both are combined effects, not single forces — fully matching my observation.