什么是宇宙的英语作文
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什么是宇宙的英语作文
英文回答:
What is the universe? It's a big question, and one that has puzzled philosophers and scientists for centuries. The universe is everything that exists, including all of space and time. It is the sum of all matter and energy.
We can think of the universe as a vast ocean. Inside this ocean, there are galaxies, which are like islands. Our solar system is just a tiny boat floating in this vast ocean.
The universe is constantly expanding, which means that the galaxies are moving away from each other. This expansion is happening at an accelerating rate.
Scientists believe that the universe began about 13.8 billion years ago with a tiny point of infinite density and heat. This point is called the Big Bang.
Since the Big Bang, the universe has been cooling and expanding. As it expands, the universe is becoming less dense. The average temperature of the universe is now about 2.7 degrees Kelvin.
The universe is a fascinating and mysterious place. We are just beginning to understand its vastness and complexity. As we learn more about the universe, we will come to a better understanding of our place in it.
中文回答:
宇宙是什么?这是一个大问题,几个世纪以来一直困扰着哲学家和科学家。宇宙是存在的一切,包括所有空间和时间。它是所有物质和能量的总和。
我们可以将宇宙想象成一片广阔的海洋。在这片海洋中,有星系,就像岛屿一样。我们的太阳系只是漂浮在这片浩瀚海洋中的一个小船。
宇宙在不断膨胀,这意味着星系在相互远离。这种膨胀正在以
加速率发生。
科学家们认为,宇宙在大约 138 亿年前从一个具有无限密度和热量的微小点开始。这个点被称为大爆炸。
自大爆炸以来,宇宙一直在冷却和膨胀。随着它的膨胀,宇宙变得不那么稠密了。宇宙的平均温度现在大约是 2.7 度开尔文。
宇宙是一个迷人而神秘的地方。我们才刚刚开始了解它的广阔性和复杂性。随着我们对宇宙了解得越多,我们就越能更好地理解我们在其中的位置。