About the maximal electrostatic potential energy U(r) of a pair electron-positron at rest with distance r
in [Relativity]
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From: valls on 16 Jul 2010 15:16 I suppose we are all in agreement about the increase of U(r) with an increase of r. Has U(r) a finite maximal limit value when r tends to infinite? In case of positive answer, which is that maximal value?
From: dlzc on 16 Jul 2010 16:13 Dear va...: On Jul 16, 12:16 pm, va...(a)icmf.inf.cu wrote: > I suppose we are all in agreement about the > increase of U(r) with an increase of r. Has > U(r) a finite maximal limit value when r > tends to infinite? r probably will tend to a maximum at r_U (radius of the Universe, in a non-expanding, flat Universe), and r_U may be a function of time as well, in this Universe. If one of the charges moves across the Rindler horizon of the other... > In case of positive answer, which is that > maximal value? That'll probably depend on when you ask. But I'd think it will asymptotically approach some value with increasing values of r. David A. Smith
From: valls on 19 Jul 2010 07:24 On 16 jul, 15:13, dlzc <dl...(a)cox.net> wrote: > Dear va...: > > On Jul 16, 12:16 pm, va...(a)icmf.inf.cu wrote: > > > I suppose we are all in agreement about the > > increase of U(r) with an increase of r. Has > > U(r) a finite maximal limit value when r > > tends to infinite? > > r probably will tend to a maximum at r_U (radius of the Universe, in a > non-expanding, flat Universe), and r_U may be a function of time as > well, in this Universe. If one of the charges moves across the > Rindler horizon of the other... > > > In case of positive answer, which is that > > maximal value? > > That'll probably depend on when you ask. But I'd think it will > asymptotically approach some value with increasing values of r. > > David A. Smith Even using modern cosmology, you give only a naive answer. I was waiting a much more detailed answer, a quantitative one related with the electron known intrinsic constants. Maybe this is an open problem in today Physics? I found a very simple answer using only 1905 Relativity: 2m_e c^2, where m_e is the today rest mass of a free electron. By the way, this quantity seems to coincide with the today experimentally measured one for the photons resulting from electron- positron annihilation. RVHG (Rafael Valls Hidalgo-Gato)
From: Dono. on 19 Jul 2010 09:38 On Jul 16, 12:16 pm, va...(a)icmf.inf.cu wrote: > I suppose we are all in agreement about the increase of U(r) with an > increase of r. No, imbecile, the potential DECRESES with distance. No one agrees with your idiocies.
From: dlzc on 19 Jul 2010 13:11
Dear va...: On Jul 19, 4:24 am, va...(a)icmf.inf.cu wrote: > On 16 jul, 15:13,dlzc<dl...(a)cox.net> wrote: > > On Jul 16, 12:16 pm, va...(a)icmf.inf.cu wrote: > > > > I suppose we are all in agreement about the > > > increase of U(r) with an increase of r. Has > > > U(r) a finite maximal limit value when r > > > tends to infinite? > > > r probably will tend to a maximum at r_U > > (radius of the Universe, in a non-expanding, > > flat Universe), and r_U may be a function of > > time as well, in this Universe. If one of > > the charges moves across the Rindler horizon > > of the other... > > > > In case of positive answer, which is that > > > maximal value? > > > That'll probably depend on when you ask. > > But I'd think it will asymptotically approach > > some value with increasing values of r. > > Even using modern cosmology, you give only a > naive answer. I was waiting a much more > detailed answer, a quantitative one related with > the electron known intrinsic constants. Then maybe you'll need to develop this answer yourself. > Maybe this is an open problem in today Physics? Finding the size of the Universe is, yes. > I found a very simple answer using only 1905 > Relativity: Who cares about your insistence on 105 year old physics? Why did I know you were going to drag this back to your old stomping grounds? David A. Smith |