In physics, homogeneity refers to the property where a substance has a solid, consistent composition, with uniform properties. Particles are distributed as widely as possible and evenly mixed. Each sample of the material will have the same composition and the same characteristics. Examples are solutions and alloys (but not all).
A homogeneous mixture is a uniform mixture of substances with the same phase. Examples are gasoline and margarine. A homogeneous field has the same value or direction everywhere, like the homogeneous electric field between the flat plates of a capacitor.
Homogeneity can also be used more widely in physics: no property or natural law may be dependent on the absolute place in the space where it is measured. Natural laws would be very unusable if they had other outcomes, purely based on space space. This principle is also called translation symmetry. Also see
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