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在很久远的时候,人们就尝试着理解这个世界:为什么物体会往地上掉?为什么不同的物质有着不同的性质?宇宙的形成和性质同样是一个谜,例如地球、太阳以及月亮这些星体究竟是遵循着什么规律在运动?什么力量决定着这些规律。科学家们提出了各种理论试图解释这个世界,然后其中大多数最后都被证实是错误的。这些早期的理论在今天看来更像是一种哲学,它们不曾像今天的理论被有系统的实验所证明,这些都属于物理,看似深奥但与我们息息相关的理论学科。
At a very long time, people try to understand the world: Why do things fall to the ground? Why do different kinds of things have different properties? The formation and nature of the universe are also a mystery. For example, are the stars such as the Earth, the Sun and the Moon What follows the law in motion? What forces determine these laws. Scientists have come up with theories that try to explain the world, and most of them eventually prove to be wrong. These early theories seem more philosophical to today than they have been systematically tested in today’s theory, all of which are physical, seemingly esoteric but closely related theoretical disciplines.