A constant speed of light in all reference frames? Surely you can't be serious.
in [Relativity]
|
From: Dono. on 9 Mar 2010 23:07 On Mar 9, 7:42 pm, Bruce Richmond <bsr3...(a)my-deja.com> wrote: > > The tick rate measured by the stay at home twin slows. That is his > reality and it jibes with the reduced elapsed time on the returned > clock. Sigh, you are still the same old imbecile. The elapsed proper time for any of the two twins satisfies the condition: (c*d\tau)^2=(cdt)^2 - dr^2 where dr^2=dx^2+dy^2+dz^2, \tau is the proper time and t is the coordinate time, i.e. the time measured by a distant observer Then: d\tau=dt*sqrt(1-1/c^2*(dr/dt)^2)=dt*sqrt(1-(v/c)^2) where v is the speed of the twin wrt the distant observer. For the travelling T twin v>0, so d\tau=dt*sqrt(1-(v/c)^2) For the stay at home twin T' v=0, so d\tau'=dt Obviously, d\tau'>d\tau If you want to solve the problem completely, you can integrate d\tau along the path travelled by T. The solution works even for v=v(t), i.e. for accelerated motion. You should take a class sometimes.
From: Dono. on 9 Mar 2010 23:10 On Mar 9, 8:00 pm, Jerry <Cephalobus_alie...(a)comcast.net> wrote: > On Mar 9, 9:05 am, "Dono." <sa...(a)comcast.net> wrote: > > > Bad answer: EM waves are TRANSVERSE whereas gravitational wave are > > LONGITUDINAL waves. The same medium cannot propagate both, so, you > > need AT LEAST two different "aethers" > > Actually, solids support the propagation of both transverse (s) > and longitudinal (p) waves. But the speed of s and p waves are > different, so you STILL need two aethers for light and gravity. > > And no, Inertial, you CANNOT simply postulate an aether in which > s and p waves travel at the same speed... > > Jerry Yes, I know but the "solid aether" died a violent death more than 100 years ago :-) This is not going to stop the Inertial imbecile, I guess his own inertia in admitting his errors is way too big.
From: Paul Stowe on 9 Mar 2010 23:23 On Mar 8, 9:27 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> wrote: > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > news:3355b6f6-1826-4819-b7cb-b85913a5cae0(a)t9g2000prh.googlegroups.com... > On Mar 7, 8:32 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > wrote: > > > > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > >news:9c1e1ae6-c9c1-497d-a293-35fb68100abb(a)c34g2000pri.googlegroups.com.... > > On Mar 7, 8:10 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > wrote: > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > > >news:720fa6a7-6744-4bf7-85fe-6050215ee277(a)k5g2000pra.googlegroups.com.... > > > On Mar 7, 6:52 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > > wrote: > > > > > > LET is as possibly valid as SR .. Neither is refuted experimentally. > > > > > I > > > > > just don't think it is the correct physical explanation. LET is not > > > > > compatible AFAIK with GR .. so is a bit of a dead end .. and has the > > > > > assumption of an undetectableaetherwith properties that don't make > > > > > sense. > > > > > The experimental support for a fixed ether in SR is comparable to the > > > > experimental support for unicorns in zoology. Lots of luck proving > > > > either > > > > exists. > > > > What is a 'fixed ether'? > > > > _______________________ > > > Non-existent. > > > That is your 'belief'. The question was in physical model arena. > > Give or reference a basic hypothetical definition... > > > _____________________________ > > A priveleged inertial reference frame. Of course, as I don't believe it > > exists, I am hardly in a position to extol its qualities. This seems to be > > what believers in a "fixed ether" mean by the term, but you would be > > better > > off asking them. I know as much about ether as I do about Unicorns. In > > fact, > > I don't even know if Unicorns are horses with a single spiral horn, or are > > a > > completely different species that just looks like a horse with a horn. If > > you really want to know, ask somebody who believes in Unicorns and/or the > > fixed ether what they are exactly. > > > PaulStowe > > I'm sorry about these questions but, what does privileged mean? > > _______________________________ > Somehow better than the others. Special in some sense. For example, the > reference frame of the ether is privleged because it is the only reference > frame where lengths and times are "correct". > > There > is certainly physical consequences of the medium (such as field > profile alterations due to motion) but there is certainly nothing > priveleged as in having different properties about it. > > _____________________________ > It is privileged; it is the unique reference frame for which the real length > is the same as the measured length. Or so I understand it; as I said, I > don't actually believe it exists at all. Real length??? What makes length real? Paul Stowe
From: BURT on 9 Mar 2010 23:37 On Mar 9, 8:23 pm, Paul Stowe <theaether...(a)gmail.com> wrote: > On Mar 8, 9:27 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > wrote: > > > > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > >news:3355b6f6-1826-4819-b7cb-b85913a5cae0(a)t9g2000prh.googlegroups.com... > > On Mar 7, 8:32 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > wrote: > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > > >news:9c1e1ae6-c9c1-497d-a293-35fb68100abb(a)c34g2000pri.googlegroups.com.... > > > On Mar 7, 8:10 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > > wrote: > > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > > > >news:720fa6a7-6744-4bf7-85fe-6050215ee277(a)k5g2000pra.googlegroups.com... > > > > On Mar 7, 6:52 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > > > wrote: > > > > > > > LET is as possibly valid as SR .. Neither is refuted experimentally. > > > > > > I > > > > > > just don't think it is the correct physical explanation. LET is not > > > > > > compatible AFAIK with GR .. so is a bit of a dead end .. and has the > > > > > > assumption of an undetectableaetherwith properties that don't make > > > > > > sense. > > > > > > The experimental support for a fixed ether in SR is comparable to the > > > > > experimental support for unicorns in zoology. Lots of luck proving > > > > > either > > > > > exists. > > > > > What is a 'fixed ether'? > > > > > _______________________ > > > > Non-existent. > > > > That is your 'belief'. The question was in physical model arena. > > > Give or reference a basic hypothetical definition... > > > > _____________________________ > > > A priveleged inertial reference frame. Of course, as I don't believe it > > > exists, I am hardly in a position to extol its qualities. This seems to be > > > what believers in a "fixed ether" mean by the term, but you would be > > > better > > > off asking them. I know as much about ether as I do about Unicorns. In > > > fact, > > > I don't even know if Unicorns are horses with a single spiral horn, or are > > > a > > > completely different species that just looks like a horse with a horn.. If > > > you really want to know, ask somebody who believes in Unicorns and/or the > > > fixed ether what they are exactly. > > > > PaulStowe > > > I'm sorry about these questions but, what does privileged mean? > > > _______________________________ > > Somehow better than the others. Special in some sense. For example, the > > reference frame of the ether is privleged because it is the only reference > > frame where lengths and times are "correct". > > > There > > is certainly physical consequences of the medium (such as field > > profile alterations due to motion) but there is certainly nothing > > priveleged as in having different properties about it. > > > _____________________________ > > It is privileged; it is the unique reference frame for which the real length > > is the same as the measured length. Or so I understand it; as I said, I > > don't actually believe it exists at all. > > Real length??? What makes length real? > > Paul Stowe- Hide quoted text - > > - Show quoted text - Real length is no flat atoms. Flat atoms do not belong in physics. Mitch Raemsch
From: Paul Stowe on 9 Mar 2010 23:39
On Mar 8, 9:27 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> wrote: > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > news:3355b6f6-1826-4819-b7cb-b85913a5cae0(a)t9g2000prh.googlegroups.com... > On Mar 7, 8:32 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > wrote: > > > > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > >news:9c1e1ae6-c9c1-497d-a293-35fb68100abb(a)c34g2000pri.googlegroups.com.... > > On Mar 7, 8:10 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > wrote: > > > > "PaulStowe" <theaether...(a)gmail.com> wrote in message > > > >news:720fa6a7-6744-4bf7-85fe-6050215ee277(a)k5g2000pra.googlegroups.com.... > > > On Mar 7, 6:52 pm, "Peter Webb" <webbfam...(a)DIESPAMDIEoptusnet.com.au> > > > wrote: > > > > > > LET is as possibly valid as SR .. Neither is refuted experimentally. > > > > > I > > > > > just don't think it is the correct physical explanation. LET is not > > > > > compatible AFAIK with GR .. so is a bit of a dead end .. and has the > > > > > assumption of an undetectableaetherwith properties that don't make > > > > > sense. > > > > > The experimental support for a fixed ether in SR is comparable to the > > > > experimental support for unicorns in zoology. Lots of luck proving > > > > either > > > > exists. > > > > What is a 'fixed ether'? > > > > _______________________ > > > Non-existent. > > > That is your 'belief'. The question was in physical model arena. > > Give or reference a basic hypothetical definition... > > > _____________________________ > > A priveleged inertial reference frame. Of course, as I don't believe it > > exists, I am hardly in a position to extol its qualities. This seems to be > > what believers in a "fixed ether" mean by the term, but you would be > > better > > off asking them. I know as much about ether as I do about Unicorns. In > > fact, > > I don't even know if Unicorns are horses with a single spiral horn, or are > > a > > completely different species that just looks like a horse with a horn. If > > you really want to know, ask somebody who believes in Unicorns and/or the > > fixed ether what they are exactly. > > > PaulStowe > > I'm sorry about these questions but, what does privileged mean? > > _______________________________ > Somehow better than the others. Special in some sense. For example, the > reference frame of the ether is privleged because it is the only reference > frame where lengths and times are "correct". > > There > is certainly physical consequences of the medium (such as field > profile alterations due to motion) but there is certainly nothing > priveleged as in having different properties about it. > > _____________________________ > It is privileged; it is the unique reference frame for which the real length > is the same as the measured length. Or so I understand it; as I said, I > don't actually believe it exists at all. Real length? What makes length real? Paul Stowe |