Properties of a preferred frame, an inertial frame in SR and
in [Relativity]
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From: kenseto on 31 Jul 2010 18:18 On Jul 31, 10:13 am, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/31/10 7:23 AM, kenseto wrote: > > > Hey idiot....how does the grating know that light passing through it > > is coming from distance star instead of coming from a source in its > > frame? > > The grating doesn't have to know anything... it just diffracts > whatever light passes through it according to physics laws. Right and the wavelength it defined for any light ray passing through it in combination with the measured frequency is alway c. What this mean is that the grating treats every light ray passing through it is a light ray generated from a source in its frame....just as sodium light or mercury light or h-alpha light passing through the grating and the grating defines a universal wavelength for each of them. Ken Seto > Diffracting gratings are used by astronomers to measure the > spectra of the incoming light--an essential tool in measurements > of planetary atmospheres stars, interstellar clouds, galaxies, > quasars, etc. > > Background for Seto > http://en.wikipedia.org/wiki/Diffraction_grating
From: Sam Wormley on 31 Jul 2010 20:02 On 7/31/10 5:18 PM, kenseto wrote: > On Jul 31, 10:13 am, Sam Wormley<sworml...(a)gmail.com> wrote: >> On 7/31/10 7:23 AM, kenseto wrote: >> >>> Hey idiot....how does the grating know that light passing through it >>> is coming from distance star instead of coming from a source in its >>> frame? >> >> The grating doesn't have to know anything... it just diffracts >> whatever light passes through it according to physics laws. > > Right and the wavelength it defined for any light ray passing through > it in combination with the measured frequency is alway c. What this > mean is that the grating treats every light ray passing through it is > a light ray generated from a source in its frame....just as sodium > light or mercury light or h-alpha light passing through the grating > and the grating defines a universal wavelength for each of them. > > Ken Seto How can you be so uneducated in such simple stuff? > >> Diffracting gratings are used by astronomers to measure the >> spectra of the incoming light--an essential tool in measurements >> of planetary atmospheres stars, interstellar clouds, galaxies, >> quasars, etc. >> >> Background for Seto >> http://en.wikipedia.org/wiki/Diffraction_grating >
From: BURT on 31 Jul 2010 20:11 On Jul 31, 7:26 am, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/31/10 7:41 AM, kenseto wrote: > > > Sigh...the speed of light in a vacuum is a defined constant....not a > > measured constant. > > Wanna bet? First a measured constant, then because almost all the > uncertainty in this measurement of the speed of light was due to > uncertainty in the length of the meter, the speed of light was > defined independent of the meter and the meter defined in terms > of the speed of light. > > Background for Seto > http://en.wikipedia.org/wiki/Speed_of_light#Measurement Unmarked round 3D space distance is what light and matter move through. Gravity is a frame of its own by being a center of geometry to energy forms. Mitch Raemsch
From: kenseto on 1 Aug 2010 10:10
On Jul 31, 8:02 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/31/10 5:18 PM, kenseto wrote: > > > > > > > On Jul 31, 10:13 am, Sam Wormley<sworml...(a)gmail.com> wrote: > >> On 7/31/10 7:23 AM, kenseto wrote: > > >>> Hey idiot....how does the grating know that light passing through it > >>> is coming from distance star instead of coming from a source in its > >>> frame? > > >> The grating doesn't have to know anything... it just diffracts > >> whatever light passes through it according to physics laws. > > > Right and the wavelength it defined for any light ray passing through > > it in combination with the measured frequency is alway c. What this > > mean is that the grating treats every light ray passing through it is > > a light ray generated from a source in its frame....just as sodium > > light or mercury light or h-alpha light passing through the grating > > and the grating defines a universal wavelength for each of them. > > > Ken Seto > > How can you be so uneducated in such simple stuff? Hey idiot...it is you who is uneducated. You are a runt of the SRians. Ken Seto > > > > > > >> Diffracting gratings are used by astronomers to measure the > >> spectra of the incoming light--an essential tool in measurements > >> of planetary atmospheres stars, interstellar clouds, galaxies, > >> quasars, etc. > > >> Background for Seto > >> http://en.wikipedia.org/wiki/Diffraction_grating- Hide quoted text - > > - Show quoted text -- Hide quoted text - > > - Show quoted text - |