## A list of some physical quantities in the meter-second unit system (MS system)

The meter-second unit system (abbreviated as MS system) is a physical unit system under the Complete Theory of Space-Time (TCST) [2], and TCST is built on it. The MS system is based on two basic quantity definitions (length unit definition and time unit definition), which can realize the theoretical definition of all other physical quantities. This article is a summary of some of the known physical quantities in the MS system, including the basic description of these physical quantities in the International System of Units (SI).

In terms of physics logic, the MS system is the result of deepening and expanding the logic of the physics unit definition system, that is, a theoretical work for the complete construction of the logic foundation of physics.

appendix:

Introduction to the meter-second system: The meter-second system is a physical unit system developed based on the international system of units and the multi-dimensional space-time structure of physical reality. The MS system has two definition systems, one is a semi-theoretical definition system, and the other is a full-theory definition system.

The semi-theoretical MS system is a physical unit definition system composed of two basic quantities and derived quantities. The definition system consists of two definitions of basic quantities and a general definition of derived quantities, in which the two definitions of basic quantities use measurement definitions and follow the SI definitions of length units and time units. which is,

- Measurable definition of the time unit: A second is the duration of 9192631770 times the radiation period of the transition between the two hyperfine energy levels of the ground state of the cesium-133 atom, expressed using the physical unit symbol s.
- Measurable definition of the unit of length: meter is the length of light travel in vacuum within a time interval of 1/299792458 seconds, expressed by the physical unit symbol m.
- All derived quantities are defined by the multi-dimensional space-time structure (space-time value, space-time configuration, constant physical quantity) (see attached table).

The full theoretical MS system also adopts theoretical definitions for unit length and unit time, and then realizes the theoretical definition of all physical units. The definition system is also composed of three theoretical definitions.

■Theoretical definition of unit length: define the total amount of one-dimensional space generated by 2.4720661623652209*10^34 complete space-times [2] as one meter, and use the length unit symbol m to refer to.

■Theoretical definition of unit time: define the total amount of one-dimensional time generated by 0.7416198487095662*10^43 complete spacetimes [2] as one second, and use the time unit symbol s to refer to it.

■All derived quantities are defined by multi-dimensional space-time structure (space-time value, space-time configuration, constant physical quantity) (see attached table).

The basic properties of the MS system: The MS system has discovered various physical properties of the multi-dimensional space-time structure, including but not limited to the dual physical characteristics of the multi-dimensional space-time structure, the adjacent relationship of the multi-dimensional space-time structure, the numerical properties of the multi-dimensional space-time structure (physical unit equivalent theorem), Characteristic physical quantities of multi-dimensional space-time structures (defect theorem), equivalent mass of multi-dimensional space-time structures, etc.

The status and role of the MS system in physics: From the perspective of the overall structure of the theoretical system of physics, the physical unit system belongs to the basic part of physics and tends to sink with the development of physics. The MS system is the theoretical result of the settlement of the SI system. It is located at the bottom of the physics foundation and has the logical properties of upward compatibility with physical unit systems such as the SI system, centimeter-gram-second unit system, and Planck unit system. . All the upper-level theories of physics, such as classical mechanics theory, electromagnetism theory, thermodynamics and statistical physics theory, atomic theory, elementary particle theory, relativity, quantum mechanics, condensed matter theory, cosmology, etc., are built on the basis of various physical unit systems. On, especially building on SI. The upper-level theory of physics is different from the physical unit system, and they have the logical property of backward compatibility.

The innovation value of physics in the MS system: The MS system has discovered three common physical properties (time-space configuration, space-time value, and constant physical quantity) that all physical realities have, and realized a physical description of a broader and deeper physical reality. The further development of physics theory provides a new basic concept of physics, and provides a new analysis method of physics theory.

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**Sunil Mahar**

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