The uncertainty principle, a cornerstone of quantum mechanics, states that it is impossible to know both the exact position and momentum of a subatomic particle at the same time. This concept, first proposed by German physicist Werner Heisenberg in 1927, has far-reaching implications for our understanding of the behavior of matter and energy. Known in Chinese as '测不准原理,' the uncertainty principle is a fundamental principle in modern physics that has been widely used to explain various phenomena in the physical world.