length expansion

  Symmetry is beautiful and intuitive. Symmetry is efficient and economical. And symmetry is an important principle that exists in the base of nature. And symmetry in relativity is very important. When we often say symmetry, we think of the symmetry of a figure. We call it line-symmetry or point-symmetry, where the left and right are the same or symmetric about a certain point. A Human is line-symmetrical, and the virus of the regular icosahedron is point-symmetrical. Fig. 1 Line-symmetric human body Fig 2. Point-symmetric virus But symmetry in science is a bit different from the symmetry of geometry. It is called symmetry, even though it is not symmetrical about any line or point and does not change for a particular action. This is what we call symmetry when we have made a certain action on a physical object and it has not changed. The symmetry is summarized as follows. Types of symmetry In relativity, symmetry and conservation are also very...

   The particles inside the particle accelerator fly at a relativistic speed. Therefore, particle accelerators are the best tools for verifying the effects of relativity. However, to interpret the phenomena that appear in particle accelerators as suggested in the current relativity theory, we must make a strange conclusion. Here, the current theory of relativity is a theory that supports length contraction. You may have to conclude that the earth is spinning at 99.999999% of the speed of light. Earth is rotating. The earth is spinning itself one revolution. But if someone claims Earth is rotating 10,000 times per second now, would you agree? I do not think anyone would agree with this. At that rate of speed, perhaps not enjoying ordinary life, everything would have been blown up into space and disintegrated. Let's try the mu-meson story again. Muon, which is created at 10km above the sky, has a very short life span and cannot reach sea level in a classical way. But th...