comingfrom wrote:I see this error being made by the top most physicists.
It shocks me that the fundamental meanings of words get lost.
This makes it no surprise that science gets so confused, even on basic things.
This is my chance to explain. Correct me if you think I am wrong.
Nobody looks in the dictionary anymore.Nobody knows what fields are exactly but I would put them at the lowest level of a hierarchy.
Fields are designated areas, or volumes.
The fields are set by us.
We make the fences. We define the boundaries.
Then we study what is in the field.
We try to define what is in the field, that creates the forces observed on objects in the field (or are supposed to).
Science borrowed the word "field" from farming.
We have wheat in field A, cattle in field B, field C is lying fallow, and so forth.
Fields are simply designated areas.
We designate a spherical volume field around a body, and call it the gravity field, or the charge field.
The field is the spherical area.
What the "crops" are in the fields are still a mystery.
Gravity and charge are the "crops" in science, the forces that reside in our fields, but these are yet to be physically and mechanically explained, as to what they are, and how they transmit force.
Now science has conflated the field and the crop.
The paddock has become the wheat.
They failed to define what gravity is, and what charge is, and now say it is the field that creates forces.
But if we be rigorous, and define our spherical field around Earth at time t,
then at time t + n, the Earth and her gravity has moved on, and our field is now relatively empty of gravity.
To avoid this, science designates moving fields.
Scientific fields are in motion with the bodies, so that the designated area of the field continues to contain the gravity, or charge, which we are trying track.
You can have a field of electrons.
You can have a field of asteroids.
In most science fields the "crops" are superimposed, or interspersed.
A field of electrons will also contain charge, magnetism, and gravity, for instance.
The different forces in the field may have different strengths and vectors, even at different locations in the field.
The field itself doesn't have any force.
It is just the region of space where the forces are active.
~Paul
A field is an area where a particle can accelerate/get kinetic energy. I like to say a field is composed of kinetic energy.