What is a Black Hole?
Monday, May 19th, 2008From some of my previous posts you know that objects don’t just have size, they have mass. A three-foot diameter ball of loosely packed feathers, for example, has far less mass than a three-foot diameter ball of lead. But if you keep compressing feathers into that three-foot sphere, keep squeezing and squeezing them in, you’ll [...]
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