- #1
Islam Hassan
- 235
- 5
I was wondering what were the fundamental physical units of measurement, ie those from which all other units can be derived.
To my mind, there are only two things which exist in the universe and from which all units of measurement can be derived : space and matter. The reasoning is as follows :
• From space we can define location, distance and volume in 3 dimensions either in linear or angular terms.
• All matter comes with its associated force field (weak, strong, electromagnetic) and a curvature of spacetime attached to it. From a measure of the amount and type of matter present (not the mass per se), we can therefore derive a measure of force in a given point in 3D space.
• With such measured force acting on matter, we get movement, ie velocity as well as acceleration and can define measurement units for them too.
• With acceleration and force, we can derive a measure of mass.
• For a given frame of reference and with two measurements of movement, one which we will define as being The Standard Movement (ie, a clock) and another as being The Observed Movement, we can define units of time which is just a pacing of 2 or more relative movements through space.
I believe that with measurement units thus defined/assigned for i) type/quantity of matter, ii) location, iii) distance, iii) volume, iv) force, v) velocity, vi) acceleration, vii) mass and viii) time, all other physical measurement units can be derived.
Is this line of reasoning correct/complete?
IH
To my mind, there are only two things which exist in the universe and from which all units of measurement can be derived : space and matter. The reasoning is as follows :
• From space we can define location, distance and volume in 3 dimensions either in linear or angular terms.
• All matter comes with its associated force field (weak, strong, electromagnetic) and a curvature of spacetime attached to it. From a measure of the amount and type of matter present (not the mass per se), we can therefore derive a measure of force in a given point in 3D space.
• With such measured force acting on matter, we get movement, ie velocity as well as acceleration and can define measurement units for them too.
• With acceleration and force, we can derive a measure of mass.
• For a given frame of reference and with two measurements of movement, one which we will define as being The Standard Movement (ie, a clock) and another as being The Observed Movement, we can define units of time which is just a pacing of 2 or more relative movements through space.
I believe that with measurement units thus defined/assigned for i) type/quantity of matter, ii) location, iii) distance, iii) volume, iv) force, v) velocity, vi) acceleration, vii) mass and viii) time, all other physical measurement units can be derived.
Is this line of reasoning correct/complete?
IH