注目の話題: 秋になったら食べたい物は？; 小学校に行かせずに保育園に通わせる; 呆れてしまったのでしょうか…？

Let’s enjoy English! 4

No.16　18/04/01 08:58
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【The North Korea insisted that it was a launching an artificial satellite,but… 】

《The artificial satellite should be launched toward east.》

Where is the place which is the fastest speed as to the rotation of the earth? If rotating a terrestrial globe 地球儀,we can recognize,it’s around the equator,the author said like that,but to my sorrow,I don’t have the terrrestrial globe,and even if I had,I’m afraid I can’t understand why it is,so I research for it on the internet.

The speed of the rotation on the earth is fixed everywhere during the 24 hours,so the ground around the equator which is the longest circumference is the fast.

If cutting the globe into round slices on a parallel plane to the equator,in other word,each of the round slice lies vertically to the earth’s axis,the higher the latitude is,the smaller the circle is,and the longest circumference is around the equator which is the lowest latitude.

In short,if launching the artificial satellite,around the equator is desirable.