/u/disintegrationist's posts in /r/askscience
I have a brain teaser for ya'll. How could a digital time countdown comprised of *infinite* decimals ever reach zero?
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Mathematicians of Reddit... When you look at an equation and solve it by heart, can you just see the answer popping out of the book, a voice in your head tells you what it is or something??
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How close to Earth would "another Earth" have to be so that their gravitational forces canceled each other out and people on their closest surfaces would float?
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Can't we just find an alternative way to define black holes other than that old adage... 'massive objects whose gravitational pull is so powerful ""that even light cannot escape their grasp""'? Sheesh...
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What could possible higher forms of life from other planets look like? Are the ET-life forms we see in movies possible (or likely to exist)?
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Should all humans die suddenly, how long would it be until all traces of our existence get completely wiped away from the Earth and what would cause it to happen?
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How smooth is glass? If the smoothness of glass was to be scaled up to the size of the Earth, what would our planet's surface be like?
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