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你了解我们生活的家园——地球吗?这个蔚蓝色的星球充满了各种各样且奇奇怪怪的故事。下面的数字信息也许能帮助你揭开我们星球的神秘面纱,进一步认识地球。一天永远会是24小时吗?10多亿年前,地球的一天只有18小时,地球自转越来越慢,今天的一天是24小时。据科学家估算,在遥远的未来,地球上的一天将会是960小时!而10亿年前,月球离地球更近,那时一个月才20天。目前,月球仍以每年4厘米的距离远离地球。一个人到了火星上多重?火星上的重力是地球上海平面高度重力的38%,所以,人在火星上的重量为在地球上的38%。火星上的一年有多长?地球绕太阳一周是365天,而火
Do you understand the home of our life, the Earth? This azure planet is full of all kinds of strange and strange stories. The following digital information may help you uncover the mystery of our planet and further understand the earth. Will a day always be 24 hours? More than 10 billion years ago, the earth’s day was only 18 hours. The earth’s rotation slowed down. Today’s day is 24 hours. According to scientists’ estimates, in the distant future, the day on Earth will be 960 hours! And one billion years ago, the Moon was closer to Earth, only 20 days a month. At present, the moon is still 4 centimeters away from Earth every year. When a person arrives on Mars multiple times, the gravity on Mars is 38% of the Earth’s plane height in Shanghai, so the weight of people on Mars is 38% on Earth. How long is the year on Mars? The earth is 365 days around the sun, and the fire