Yes, graphic computer software.

來源: 於 2012-09-06 08:13:32 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

I made it for about half a year.

You know galaxy is a new stuff for humans, but very very old natural being.

Its study by humans has been merely a kind of taxonomy. I turn it into a quantitive exploration.