Properties of a preferred frame, an inertial frame in SR and
in [Physics]
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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 - |