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Tired Light is an alternative theory to that of the expanding Universe. This theory explains the experimental evidence without resorting to the 'cosmological constants' or 'vacuum energy' that are essential to the theory of the expanding Universe.Experiment tells us that photons of light from distant galaxies have a longer wavelength on arrival than when they set off. Since red light has a longer wavelength than blue light, we say that they have been 'redshifted'. The Theory of the Expanding Universe explains this as space expanding and stretching the photons as it does so. In Tired Light we say that the photons lost energy during their journey to us by bumping into electrons on the way.The Tired Light Theory (that redshift is due to electron interaction) is supported by the fact that measured values of the Hubble constant, H are exactly equal to a combination of the parameters of the electron. This is known as 'Ashmore's Paradox'. If, in the expanding Universe, the expansion is not related to the electron then why is the Hubble constant found experimentally to be related to the electron?
When sending digital pulses down a fibre optic, monochromatic light is used as different frequencies travel at different speeds down the fibre. If white light is used, this leads to 'pulse broadening .' In supernovae 'time dilation' muticolour light curves are considered. However, a supernova burst is just a digital pulse and 'pulse broadening' is not taken into consideration when testing Tired Light models .This produces an effect similar to 'Time Dilation.' Different frequencies of radiation are known to travel through space at different speeds  as is shown by gamma ray bursts. All frequencies may well start off at the same time but they will arrive here on Earth at different times - and the greater the redshift, the greater the pulse broadening! Who needs expansion and relativity - Tired Light.
The MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescope found that high-energy photons of gamma radiation from a distant galaxy arrived at Earth four minutes after lower-energy photons, although they were apparently emitted at the same time. If correct, that would contradict Einstein's theory of relativity, which says that all photons (particles of light) must move at the speed of light.
What does represent Direct Physical evidence of the dynamics of the universe? 1. The average separation of Hydrogen Clouds? 2. The average separation of galaxies? 3. The average temperature. Is it increasing, decreasing or staying the same?
It goes dark at night- no great revelation there.Do you understand that this means one of three things.There's something odd about our bit of the universeThe universe hasn't been around forever orThe universe is finite in its extent?