A day is the time for the earth to go around the sun. I don't know what you mean a "universe day"? an era? Don't use day then, use some other terms. Don't confuse me.
Does the Universe have a "day"?
所有跟帖:
•
天上一天,地下一年,是形容在不同參照係裏,測量的結果不是一樣的。
-藍山雀-
♀
(47 bytes)
()
09/25/2015 postreply
12:08:22
•
"天上一天,地下一年", why not two years?
-Calypso-
♂
(306 bytes)
()
09/25/2015 postreply
12:16:28
•
Are you telling me that
-Calypso-
♂
(100 bytes)
()
09/25/2015 postreply
12:32:21
•
天上一天,地下一年,是西遊記裏的
-Calypso-
♂
(50 bytes)
()
09/25/2015 postreply
14:07:36