According to foreign media reports, Einstein's theory of relativity tells us that the speed of light is the fastest in the universe, and that no object can move faster than the speed of light. The speed of light in a vacuum is 186,282 miles per second, which is about 299,791 kilometers per second. Dr. James Franson, a researcher from the University of Maryland, believes that the speed of light may not have reached this speed. The true speed of light may be slower. This may be due to the vacuum, which slows down the speed of light. Dr. Franson also cited a study that found that the supernova's photons arrived on Earth 4.7 hours slower, based on observations of the 1987 supernova.
If Dr. Franson's research conclusions are correct, it means that our understanding of the speed of light is wrong, and it also indicates that our previous estimates of the distance of the celestial bodies outside the solar system are inaccurate, especially some distances from the Milky Way. Early galaxies in the distant universe. Einstein's theory of the speed of light has been accepted by the world. As early as 1905, Einstein proposed this physics theory that influenced the history of human science and technology, but after more than one hundred years, the research results of the University of Maryland concluded that the true speed of light is better than ours. Knowing is slower.
Dr. Franson studied the SN 1987a supernova and tried to investigate the neutrinos after the star burst. This is an electrically neutral subatomic particle, but it took 4.7 hours to reach Earth. In response to this conclusion, physicists at the University of Maryland believe that the change in the speed of light may be due to the problem of vacuum polarization, which is related to the decomposition of photons into positrons and electrons. From the perspective of quantum mechanics, the virtual particles are There is also a gravitational potential, which may cause the speed of light to slow down.
1/2 Reduced Shank Drill Bit Use:Metal Drilling,ApplicationCutting
Drills expand the size range capacity of a portable drill chuck, common flute and overall length for minimal adjustment during tool changes
High speed steel material
Black oxide finish
118° conventional point
3 in. flute length and 6 in. overall length
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