已知的可见的宇宙，460亿光年范围内，估计有10的82次方个原子。这数字和10的475次方比起来是什么感觉？

来源: 蓝山雀 于 2015-09-25 01:15:21 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (2621 bytes)
本帖于 2015-09-25 03:16:51 时间, 由普通用户 蓝山雀 编辑
 
http://www.universetoday.com/36302/atoms-in-the-universe/
At this level, it is estimated that the there are between 10 to 78 to 10 to 82 atoms in the known, observable universe.
 
As stated already, this estimate accounts only for the observable universe which reaches 46 billion light years in any direction, and is based on where the expansion of space has taken the most distant objects observed.
 
已知的可见的宇宙，460亿光年范围内，估计有10的82次方个原子。
只是估计。但这个数字和10的475次方比起来是什么感觉？

所有跟帖： 

• 460亿光年? Are you kidding? -Calypso- ♂ 给 Calypso 发送悄悄话 (114 bytes) () 09/25/2015 postreply 10:18:01

• 你没看里面的资料链接么？如果用宇宙作为参照系而不是用地球， -蓝山雀- ♀ 给 蓝山雀 发送悄悄话 蓝山雀 的博客首页 (50 bytes) () 09/25/2015 postreply 11:28:01

• Can you give me 资料链接? -Calypso- ♂ 给 Calypso 发送悄悄话 (294 bytes) () 09/25/2015 postreply 11:33:00

• 就在上面。 -蓝山雀- ♀ 给 蓝山雀 发送悄悄话 蓝山雀 的博客首页 (303 bytes) () 09/25/2015 postreply 11:38:52

• Too long, tell me .. -Calypso- ♂ 给 Calypso 发送悄悄话 (166 bytes) () 09/25/2015 postreply 11:43:19

• I know the age of the universe. -Calypso- ♂ 给 Calypso 发送悄悄话 (211 bytes) () 09/25/2015 postreply 11:45:51

• You look like a 修正主义? -Calypso- ♂ 给 Calypso 发送悄悄话 (0 bytes) () 09/25/2015 postreply 11:48:01

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