On Fri, 18 Sep 2009 17:15:07 +0100, Norman Wells wrote:

Mass is defined as the quantity of matter in a body.

Now you reveal your ignorance of scientific definitions in addition
to your ignorance of scientific principles.

What you have given in imprecise terms is the definition of amount
of substance (for which the SI unit is the mole).

Definition: Mass is the quantity of inertia possessed by an object
or the proportion between force and acceleration referred
to in Newton's Second Law of Motion.

As you are not prepared to use the correct definitions, it is becoming
more and more apparent that any discussion with you is totally pointless.

Furthermore your repeated attempts to ridicule any scientific evidence
suggests that you are acting in the capacity of a troll.