Guides at the historic Coptic Hanging church in Old Cairo point out one black column in the church's white colonnades-judas, of course.

旧开罗的科普特悬空教堂的指南中指出在教堂的白色廊柱中有一根黑色的，当然，这说的就是犹大。

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Looking at one galaxy in the Catalog, Marianne noticed that the point of light was offset from the centre and yet was so bright that it could well be associated with a supermassive black hole.

在观察软件目录里的一个星系时，玛丽安注意到一个亮度极高的亮点正远离星系中心，很可能是一个超大质量黑洞。

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At the centre of a Kerr black hole, there is no point singularity, but rather a ring singularity-a spinning one-dimensional ring held open by its own momentum.

科尔黑洞中心是不是奇点而是奇环-由自身动量维持的一维环形。它有两个视界(外部视界和内部视界)以及一个椭圆形的能层(ergosphere)。

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Even as stores like Wal-Mart, Target and Best Buy, opened ever earlier on the day of Thanksgiving itself, and even as the media alternately celebrates and scoffs at Black Friday, one point goes rarely mentioned: Black Friday is not a shopping event for all of us.

FORBES: Who Really Shops on Black Friday?

When it's done, Crazy Horse will sit astride a horse and point one arm toward his Black Hills homeland.

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At one point, Anaya wears a black body stocking and a white plastic mask, and she looks like some legendary figure from a lyrical silent film.

NEWYORKER: Creep Shows