This book covers Nuclear physics, Mechanic and Thermal physics, innovations in particle acceleration, Air pressure, microdosimetry, advanced battery cell, laser technology, and Rocket power. Thermal physics is the combined study of thermodynamics, statistical mechanics, and the kinetic theory of gases. In order words, it relates to heat-related issues. These include temperature, thermal physics analyses, the first law of thermodynamics and the second law of thermodynamics. Similarly, thermal physics studies a system with a more significant number of atoms. It unites thermodynamics with statistical mechanics or the analysis of the statistical nature of physical systems from an energetic perspective regarding the number of microstates corresponding to a given microstate. In addition, the concept of entropy is studied via quantum theory. Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to studying other forms of nuclear matter., Including nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural isotopes, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Such applications are studied in the field of nuclear engineering. Nuclear astrophysics is vital in explaining stars' inner workings and chemical elements' sources. Nuclear physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons. Other Branches of physics include; Pure Applied Engineering, Classical mechanics covers Newtonian Analytical Celestial Continuum Acoustics, Classical electromagnetism, Classical optics Ray Wave Thermodynamics Statistical Non-equilibrium. Relativistic mechanics include; Special General Nuclear, Quantum, Particle, Atomic, molecular, and optical physics, Atomic Molecular Modern optics, and Condensed matter physics. Interdisciplinary physics includes; Astrophysics, Atmospheric physics Biophysics, Chemical physics, Geophysics, Materials science, Mathematical physics, Medical physics, Ocean physics Quantum information science.