Think of a three-dimensional spherical black hole that's copied and stacked out in one direction to create an oblong shape.
设想一个三维的球状黑洞，把它复制和堆放在一个方向上，就会构成一个长方形的形状。
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People sitting next to a hole this size would face a half a ton of force barreling against them in the direction of the hole.
坐在洞旁边的人会面临半吨的力把他们往洞的方向推。
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Esra’a Al Shafei is the 24-year-old activist behind MideastYouth.com, an online watering hole where dissident voices can find direction, purpose and support.