天有多高?地有多厚?在古代还是个谜。在科学技术发达的今天、这个谜就解决了。科技工作者对地厚有了比较准确的测定。地壳平均厚度为17公里,地球赤道东西半径6378.17公里,南北两极半径6356.79公里,比赤道要短21公里,世界上最深的太平洋平均有4028米,而最深的海沟达11022米,古人说“无底深潭”并非无底。天有多高?比较确切地说,围绕地球外的大气层有300公里,以外便是茫茫的宇宙。我们人居住的地球,与太阳平均距离达1.5亿公里,与月球相距39万公里,和赫托 How tall is heaven? How thick is earth? In ancient times it was a mystery. In today's advanced science and technology, this mystery is solved. Science and technology workers on the ground has a more accurate determination. The average crustal thickness of 17 kilometers, the Earth's equatorial radius of 6378.17 kilometers, north and south polar radius of 6356.79 kilometers, 21 kilometers shorter than the equator, the world's deepest Pacific Ocean has an average of 4028 meters, while the deepest trench of 11022 meters, the ancients said End of the pool "is not bottomless. How high is the sky? More specifically, there are 300 kilometers around the atmosphere outside Earth, and beyond it is the vast universe. The Earth we inhabit, with an average distance of 150 million kilometers from the sun and 390,000 kilometers from the moon,