Wu’s Particle is proposed as the building block of all Matters, therefore Time and Length can be measured by the Period and Size of the circulation of Wu’s Particle. For a local event, object and process, the Time, Length and Velocity measured by the Period and Size of Wu’s Particle have equal values as that of the identical events, objects and processes occurred at different locations measured
... [Show full abstract] by the corresponding Periods and Sizes of Wu’s Particles. However, for a remote event, object and process, the Time, Length and Velocity change with the Period and Size of Wu’s Particle at observation. For an event, object and process occurred in a large Gravitational Field and an ancient Universe, Time runs slower, Length gets longer and Velocity is smaller observed on Earth. As a result, light travels at lower speed with lower frequency and larger wavelength from a large Gravitational Field known as Gravitational Red Shift; also from a star of a few millions light years away known as Cosmological Red Shift. Spacetime is a four dimensional system based on the Period and Size of Wu’s Particle. Since the Period and Size of Wu’s Particle change with Gravitational Field and Concentration of Higgs Bosons, Spacetime is a function of Gravitational Field and Concentration of Higgs Bosons. In Wu’s Particle, Time is proportional to 3/2 power of Length which is named as “Wu’s Spacetime Theory”. Furthermore, instead of “Universe Accelerating Expansion Theory” which is based on the non-existing Dark Energy, “Spacetime Accelerating Shrinkage Theory” is proposed to explain the accelerating expansion of the Universe.
