spacetime
Meanings
時空
An n-dimensional continuum consisting of dimensions of both space and time. Normally spacetime is considered as having 4 dimensions (x, y, z, t), but higher-dimensional spacetimes are often encountered in theoretical physics, e.g. the 5-dimensional spacetime of Kaluza-Klein theory or the 11 dimensions of spacetime in M-theory.
Examples :
"Scientists study spacetime to understand how gravity affects the universe. "
科学者たちは、重力が宇宙にどのように影響するかを理解するために時空を研究します。
時空領域
A specific region of the universe with mathematically different properties than the surrounding spacetime. Synonymous with "metric" within the context of general relativity.