From: goldenfieldquaternions@gmail.com   
      
   On Thursday, August 16, 2018 at 1:34:39 PM UTC-5, ben...@hotmail.com wrote:   
   > On Wednesday, August 15, 2018 at 6:13:26 AM UTC+1, Lawrence Crowell wrote:   
   >   
   > > ...   
   > > If you had two negative masses they would attract. Because with the   
   > > negative mass acceleration is towards a positive mass this experiment   
   > > may not be able to determine if antimatter is really negative mass.   
   > > ...   
   >   
   > Hi Lawrence   
   >   
   > I think that you have agreed with me that the (CERN Aegis) experiment   
   > cannot determine whether antimatter is negatively signed for mass,   
   > or not.   
   >   
   > What that experiment can do is check if antimatter falls to earth   
   > as does an apple.  If it is found not to fall to earth that is   
   > usually said to be destructive for GR.  But it would also undermine   
   > ordinary equations of motion as, in ordinary equations of motion,   
   > all masses would fall to earth whatever their sign of mass.   
   >   
   > In which case, whatever the findings of Aegis, antimatter could   
   > have negatively signed mass.  That would allow antimatter to cause   
   > dark energy/matter.  The instant reaction to that is that antimatter   
   > cannot be dark matter as dark matter does not interact with EM.   
   >   
   > However, my suggestion is that any antimatter with EM properties   
   > will have long ago annihilated with EM matter.  Leaving only the   
   > neutrinos and antineutrinos to act as DE and DM.  IMO this does not   
   > disagree with what Susskind described in his online Stamford course   
   > on Cosmology.  The oddity is why there was any matter left over and   
   > not annihilated in the early universe.   
   >   
   > I think I have explained in my computer simulation why there was   
   > an imbalance of matter and antimatter in the early universe: some   
   > of the antimatter (assumed to be signed with negative mass) could   
   > not keep up with the positive mass in the 'runaway motion' effect.   
   > If correct, some of the neutrinos/antineutrinos, moving at speed   
   > c, did keep up and they are what is causing DE and DM.  Well, the   
   > antineutrinos will be implicated in both DM and DE and the neutrinos   
   > will only be involved in DM.  (Reverse that if Jay is correct about   
   > the neutrino sign anomaly.)   
   >   
   > BTW when you write that "If you had two negative masses they would   
   > attract" I assume that you are referring only to the directions of   
   > the forces.  When the forces are applied their effects are to produce   
   > two accelerations which give repulsion, which is important in   
   > allowing negative masses to cause DE in my simulation.  Or, more   
   > simply, two negative masses initially at rest with no other external   
   > forces on them will move away from one another.   
      
   I would say the biggest signature that antimatter is not negative mass   
   is that if you combine matter and antimatter you get generally photons.   
   An electron with an anti-electron or positron produces two photons, and   
   for the e and e^+ in a positronium atom the two photons have as much   
   energy as the rest masses of the e and e^+. A particle of mass M and its   
   anti-particle of mass -M will combine to give the vacuum state. We   
   generally do not observe that.   
      
   Two anti-masses will repel as can be seen with   
      
   ma = -GMm/r^2,   
      
   where for M and m negative this equation picks up an additional minus   
   sign.  Negative mass has some odd consequences, and in particular for   
   the stress-energy tensor T^{00} < 0 there are various oddities that   
   follow. Such spacetimes permit closed timelike curves and so called time   
   travel.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)