Many fundamental concepts in physics remain unsolved: What is time? Is it pure relative? What is the vacuum? Is it void space or special medium? What is mass? Can it be created? I believe that physicists have not got definite answers for the above questions. Isaac Newton said: I was like a boy playing on the sea-shore, and diverting myself now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me. For instance, we still do not know what the clear definition of time in physics is. Because of the influence of relativity, there is too much criticism of Newton's point of absolute time, thus ignoring the right essence. In fact, the absolute time is the scientific abstract and enhanced expression of all kinds of relative time. In Newton's absolute time expressions, the right contents are: (1).The absolute time is objective, which has nothing to do with personal feeling; (2).The absolute time is always in positive direction so that history can never be played again; (3). The absolute time runs uniformly, independent of the movement of individual objects.
relativity, special relativity, newtonian mechanics, vacuum
Hu Chang-Wei. Vacuum, Space-Time, Matter and the Models of Smarandache Geometry. Ohio: Educational Publishers, 2012
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