地球是圓的,為什麼人仍覺得自己是直立的?
2007-02-03 08:52:19 · 2 個解答 · 發問者 ? 1 in 科學 ➔ 其他：科學
地球直徑12756公里,這麼大我們看起來當然覺得是直的
因為弧形是由無數直線組成的~
2007-02-03 14:05:08 補充：
所以我站在地平線上看上去便似是平面~
2007-02-03 09:00:50 · answer #1 · answered by ? 3 · 0⤊ 0⤋
It is because the force of gravity is always directed towards the centre of the earth. Under such situation, your weight is in a direction perpendicular to the ground where you are standing. This is the reason why you feel that you are [standing upright].
2007-02-03 12:20:24 · answer #2 · answered by 天同 7 · 0⤊ 0⤋