/u/-Thourne-'s posts in /r/askscience

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Are Xenomorphs from the Alien franchise technically not living?

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How long would it take for concrete and metal structures (for example, modern houses and skyscrapers) to decay/ get covered up enough that they aren't recognizable as their original form?

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I've often heard the singularity of a black hole described as a point, meaning one dimensional, and having infinite density. Does this mean gravity can "crush" dimensions? How can all that matter fit into something with no area or volume?

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In String Theory, could dark energy be accounted for from the energy the strings have from vibrating?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are Xenomorphs from the Alien franchise technically not living?	1
How long would it take for concrete and metal structures (for example, modern houses and skyscrapers) to decay/ get covered up enough that they aren't recognizable as their original form?	1
I've often heard the singularity of a black hole described as a point, meaning one dimensional, and having infinite density. Does this mean gravity can "crush" dimensions? How can all that matter fit into something with no area or volume?	1
In String Theory, could dark energy be accounted for from the energy the strings have from vibrating?	1