/u/zx7's posts in /r/askscience

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How does the International Space Station regulate its temperature?

8198 upvotes

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Why is Technetium radioactive?

27 upvotes

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Is it possible for an observer to enter a black hole in finite time?

6 upvotes

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How high can the atmospheric pressure become before it becomes hazardous to humans?

4 upvotes

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Are there any instances of "culture" in non-human (or better yet, non-primate) species?

4 upvotes

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How long after a person's death (no pulse, brain dead, etc.) does the last cell in the body die?

1 upvotes

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If I fired a rifle directly into the air and the bullet came down and hit me in the head, would it kill me?

1 upvotes

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Can fish breathe outside of water?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How does the International Space Station regulate its temperature?	8198
Why is Technetium radioactive?	27
Is it possible for an observer to enter a black hole in finite time?	6
How high can the atmospheric pressure become before it becomes hazardous to humans?	4
Are there any instances of "culture" in non-human (or better yet, non-primate) species?	4
How long after a person's death (no pulse, brain dead, etc.) does the last cell in the body die?	1
If I fired a rifle directly into the air and the bullet came down and hit me in the head, would it kill me?	1
Can fish breathe outside of water?	1