From: fortunati.luigi@gmail.com   
      
   Tom Roberts il 01/11/2023 08:59:12 ha scritto:   
   >> Newton says:    
   > The translator used a PUN on the word "force".   
   >   
   > In Newtonian mechanics, force is a vector while the "vis insita" is a   
   scalar, which today is called mass.   
      
   The "vis insita" and the mass cannot be the same thing.   
      
   Newton says: "a body exerts this force (the vis intima) *only* when another   
   force, impressed upon it, endeavors to change its condition".   
      
   The vis intima changes over time: it is only there when there is an external   
   force (which it resists and opposes in the opposite direction) and it is not   
   there at all when the external force is not there (because it does not have to   
   resist anything )   
      
   Instead, mass is a quantity of matter that always exists and is always the   
   same.   
      
   This is why, the "vis insita" and the mass are two different properties of   
   bodies: the first is a non-force (when it does not act) and is a force (when   
   it acts in opposition to an external force), the second is not, because it is   
   never a force.   
      
   Luigi Fortunati.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)