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''cGh'' physics refers to the mainstream attempts in physics to unify relativity, gravitation and quantum mechanics, in particular following the ideas of Matvei Petrovich Bronstein and George Gamow. The letters are the standard symbols for the speed of light (''c''), the gravitational constant (''G''), and Planck's constant (''h''). If one considers these three universal constants as the basis for a 3-D coordinate system and one envisions a cube, then this pedagogical construction provides a framework referred to as the "''cGh'' cube" or "physics cube". This cube can used for organizing major subjects within physics as occupying each of the eight corners.〔(The Physics Cube ), C.J. Wainwright〕 The eight corners of the ''cGh'' physics cube are: * Classical mechanics (_,_,_) * Special relativity (''c'',_,_), Gravitation (_,''G'',_), Quantum mechanics (_,_,''h'') * General relativity (''c'',''G'',_), Quantum field theory (''c'',_,''h''), Non-relativistic quantum theory with gravity (_,''G'',''h'') * Theory of everything, or relativistic quantum gravity (''c'',''G'',''h'') Other ''cGh'' subjects include Planck units, Hawking radiation and black hole thermodynamics. While there are several other physical constants, these three are given special consideration, because they can be used to define all Planck units and thus all physical quantities.〔 〕 The three constants are therefore used sometimes as a framework for philosophical study and as one of pedagogical patterns. ==In popular culture== * George Gamow chose "C. G. H." as the initials of his fictitious character, Mr C. G. H. Tompkins. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CGh physics」の詳細全文を読む スポンサード リンク
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