> On 14 Jan 2019, at 21:23, Brent Meeker <meeke...@verizon.net> wrote: > > > > On 1/14/2019 4:03 AM, Bruno Marchal wrote: >>> On 13 Jan 2019, at 21:33, Brent Meeker <meeke...@verizon.net> >>> <mailto:meeke...@verizon.net> wrote: >>> >>> >>> >>> On 1/13/2019 6:54 AM, Bruno Marchal wrote: >>>>> On 11 Jan 2019, at 20:51, Brent Meeker <meeke...@verizon.net> >>>>> <mailto:meeke...@verizon.net> wrote: >>>>> >>>>> >>>>> >>>>> On 1/11/2019 2:16 AM, Bruno Marchal wrote: >>>>>> I suspect Planck constant to be not computable, because if we extract QM >>>>>> from arithmetic, the Planck constant might very well related to the >>>>>> mechanist substitution level. >>>>> Planck's constant is not dimensionless. So its value is 1...in proper >>>>> units. >>>> Could you give those proper units? I expect one to be possibly >>>> non-computable, but I would be very glad to hear that this is not the case. >>> Are you pulling my leg, Bruno? h=1 action c=1 speed G=1 gravitate >> I have a problem with this. One physicist during a course needed to set 2*PI >> = 1, too. >> >> So my question would be, can you give me what is a meter, and a second, in >> that units. > > meter = 6.188e34 [hbar*G/c^3]^0.5 > > second = 1.855e43 [hbar*G/c^5]^0.5 > > >> Or, can you give me a formula giving sense to how we could measure h or >> h-bar? E = hf, can we compute experimentally h by using this? > > You can't measure h or c in SI units; they are defined constants: > > https://en.wikipedia.org/wiki/2019_redefinition_of_SI_base_units > <https://en.wikipedia.org/wiki/2019_redefinition_of_SI_base_units> > https://en.wikipedia.org/wiki/Planck_constant#Particle_accelerator > <https://en.wikipedia.org/wiki/Planck_constant#Particle_accelerator> > > <okmffghjalimploh.png> >> >> I am not good with unit. That does not exist in mathematics, of course. And >> I am just trying to see what it could mean for h to be non computable, in >> case that would mean something. Is c computable? (I use the idea that a real >> number is computable if we can generate all its decimal, whenever units is >> chosen. > > It's not a matter of units. Units are arbitrary. The question is what are > the dimensions...and that is theory dependent. In Newtonian physics, length > and duration, were dimensionally different. In relativity they have the same > dimensionality; so it makes sense to rotate spacetime by a Lorentz > transformation. So to answer a question like, "Is h computable" you have to > have a theory of physics that relates the value of h to other things...in > your theory, to things consciously observable.

Thank you Brent. Normally, there should be a relation between the uncertainty relation, notably time/emergy (DE.Dt >= h-bar/2) and the substitution level (which determines the first person indeterminacy domain in arithmetic). But there is a lot of work to do before we get to something like this, if only become the dimensions are “theory-dependent”, but the theory is what we have to derive first, and the dimension after. Bruno > > Brent > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com > <mailto:everything-list+unsubscr...@googlegroups.com>. > To post to this group, send email to everything-list@googlegroups.com > <mailto:everything-list@googlegroups.com>. > Visit this group at https://groups.google.com/group/everything-list > <https://groups.google.com/group/everything-list>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.