Quote:
Originally Posted by Qiaozhi
This is totally incorrect.
Scalar fields have a single number assigned to each point in the field. Whereas a vector field has a magnitude and direction assigned to each point in the field. You are confusing the two definitions.
Temperature is an example of a scalar measurement.
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There the same thing just depends on what it is relative to.
eg looking from out in space the atmosphere can have numbers assigned to the area.
Back on ground the referance point is inside the scalar field and therefor can have magnitude and direction which is relative to the observers reference point within the field.
rgds