length expansion

'Wag the dog' is an interesting phenomenon. Generally speaking, 'dog is shaking the tail' is normal, but conversely 'tail is shaking dog'. Figure 1. Normal phenomenon of a dog shaking its tail  Today, this word is used in many fields. When used in stocks, it refers to the phenomenon in which futures determine the flow of stocks. In the broadcasting market, it also indicates that the single personal broadcasting catches up with the regular broadcast. Figure 2. Phenomenon of wag the dog Wag the dog This word became widely known in original comedy movies. Shortly before an election, a spin-doctor and a Hollywood producer join efforts to fabricate a war in order to cover up a Presidential sex scandal.  So the president creates a war that could kill tens of thousands of people to hide his scandals. This is a summary of the movie content. So, the president drives the people's attention to war, and he overturns his political crisis....

  The subject of today is the constancy of the speed of light and GPS. What is the relationship between the constancy of the speed of light and GPS? If you do not look closely, it may look like there is no relationship. Japan's Masinori Sato works at Honda Electronics. He is considered to be a n expert in the field of GPS . He submitted several papers on GPS. One of them is   'Incompatibility between the principle of the constancy of the speed of light and the Lorentz contraction in the GPS Experiment '  1)      As the title suggests, the principle of the constant velocity of light and length contraction logically conflict with each other. Of course, it is not an authoritative paper. What he announced was a temporary paper before a posting run by Cornell University. His thesis title was shocking. And in the design of the entire thesis, I can see author Sato's mistake.   Aside from all this, the title of his paper is justified...