Spatial Disorientation 空間迷向

I'd read a book before, it says once a pilot cruised with his girl friend at night. While enjoying the two-people-world (what a typical "the air of romance"!), suddenly, the girl said:

"Why stars up there are all moving so fast?"

At that time, the pilot realized that they were flying up-side-down! Those moving lights his girl friend saw were not stars, those were vehicles running on the ground!
曾經看過ㄧ本書，說有ㄧ個飛行員帶著女朋友作夜間飛行，正當享受著寧靜的兩人世界時，他女朋友突然問他說：“為什麼天上的星星跑得那麼快？“
那時這位飛行員才意識到飛機正上下顛倒著飛呢！那根本不是什麼星星，頭上那些燈光其實是路上的車哩！

That is so called "Spatial Disorientation", it happens often while people is moving in 3-D space. In fact, I'd experienced once yesterday.

When I was concentrating my attention on those maneuvers, several times I didn't notice that we were banking several degrees! until the instructor reminded me.

Interesting and dangerous, I will notice it in the future.
那就是所謂的空間迷向，人在立體的空間活動時，常會發生的。
我昨天就經歷到了，當我正專心在做著各種動作時，渾然不知飛機正在傾斜，若不是教練提醒，可能翻過去了都還不知道哩！