Anti de Sitter space

Some of the differences between the familiar Newtonian equation of gravity and the predictions of general relativity flow from the fact that gravity in general relativity bends both time and space, not just space. In normal circumstances, gravity bends time so slightly that the difference between Newtonian gravity and general relativity that results is so slight that it is impossible to detect without scientific instruments.

— Wikipedia on Anti de Sitter space

2010.06.26 Saturday ACHK

魔間傳奇 3


I’m the last survivor of a dead culture. And I don’t really belong in the world anymore. And in some ways I feel I ought to be dead. I have certainly wished I had killed myself when I was born.

In terms of effect on the world, it’s very good that I’ve lived. And so I guess, if I could go back in time and prevent my birth, I wouldn’t do it. But I sure wish I hadn’t had so much pain.

— Richard Stallman, inventor of the Copyleft




2010.06.26 Saturday ACHK


網誌時代 4




換言之,要把網誌文章輯錄成書,而又有機會成為「傳世之作」的話,起碼要過 4 關,即是要 文章好、取捨好、整理好 和 次序好。

— Me@2010.06.25

Words differently arranged have a different meaning, and meanings differently arranged have a different effect.

— Blaise Pascal

2010.06.26 Saturday (c) All rights reserved by ACHK