Event

A crucial aspect on the  fundamental nature of light, generally lost sight of, is as follows. A ray of light is considered luminous on all its points and at any instant. While getting reflected from a mirror, the reflection is considered instantaneous. Now let us consider a spherical light-shell emitted from a source rather than the ray of light. On meeting a mirror, there are two instants of reflection---one when the front of the light-shell meets the mirror; and the next instant is when the tail of the light-shell meets the mirror. thus reflection of light from a mirror is not instantaneous as taken STR. Infact, if the reflecting mirror is moving away from the fixed source of light, the reflected wavelength of the light-shell will be lenthened; and shortened when the mirror is approaching the light source. And proportionately, the frequency in the former case will be lessened while in the latter, the frequency is increased. The product of the frequency and the respective wavelength in both the cases will remain the same.  The conclusion is that transmission of light along a single wavelength of light and with repect to space (ether) is constant, irrespective of the motion of the mirror. So also, it can be shown that the speed of transmission of light-effect across the  wavelength is  constant  irrespective of the motion of observers. Because, in STR , a light "ray" has been adopted for analysis, and "ray of light" is not the fundamental nature of light, conclusions of STR are not fundamentally true and hence erroneous.  

In Sagnac experiment, a beam of light is split into two and made to travel in opposite direction along two idntical routes by reflecting mirrors. As stated above, the wavelengths and the frquencies of the two beams when they meet at the detector will be different and will create interference fringes. But, the conclusion drawn generally is that the speeds of the two light beams have changed and hence there are interference fringes----a wrong conclusion.

Twin Paradox can be analysed with a sigle spherical shell of light having the property that it does not partake the speed of its emitting source(electron and positron during annihilation, as shown in Space Vortex Theory, at NPA website and http://www.tewari.org">www.tewari.org). It is shown that time passes equally for a stationary as well as a moving observer.