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A "point" in geometry can be thought of as something
with no length, width, or breadth. Everything in the real world has
some length, width, and breadth; we can only approximate a point by
making a dot with the sharpest pencil we can get. free math; (Physicists now
think that electrons may actually be points, but electrons obey the
laws of quantum physics, which is rather more complicated than
ordinary geometry.)
Still, somehow, geometry is very useful in describing the real world,
even though strictly speaking, it describes things that don't exist in
the real world. more explanation on math forum.
A "point" in geometry can be thought of as something
with no length, width, or breadth. Everything in the real world has
some length, width, and breadth; we can only approximate a point by
making a dot with the sharpest pencil we can get. free math; (Physicists now
think that electrons may actually be points, but electrons obey the
laws of quantum physics, which is rather more complicated than
ordinary geometry.)
Still, somehow, geometry is very useful in describing the real world,
even though strictly speaking, it describes things that don't exist in
the real world. more explanation on math forum.