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小朋友们还记得里约奥运会闭幕式上日本的8分钟短片吧,赶不上开幕式的安倍首相在哆啦A梦和超级马里奥的帮助下跳进了东京的一个管道,然后就从地球对面的里约钻出来了!从东京到里约,真的可以穿越过去吗?就让天体物理学博士孙正凡老师来为我们解惑吧。东京真的在里约对面吗?我们知道,虽然地球是一个椭球体,但是半径有6400千米。把地球沿东京所在的直径切成两部分,里约几乎就在直径的另一边!东京和里约在地球上的位置就叫对跖点。那么,中国上海的对面是哪里呢?孙老师说,经度相差180度、纬度南北半球相反的两个点就是对
Children still remember the eight-minute video of Japan at the closing ceremony of the Rio Olympic Games. Prime Minister Abe, who missed the opening ceremony, jumped into Tokyo’s pipeline with the help of Doraemon and Super Mario, About to drill out! From Tokyo to Rio, can really cross the past? Let Sun Zhengfan, astrophysics doctor to let us understand it. Is Tokyo really opposite to Rio? We know that although the Earth is an ellipsoid, but the radius of 6400 km. Cut the earth into two parts along the diameter of Tokyo, where Rio is almost on the other side of the diameter! The locations of Tokyo and Rio on Earth are called plantar sites. So, where is the opposite of Shanghai, China? Sun said that the longitude difference of 180 degrees, the latitude of the opposite point in the northern and southern hemispheres is right