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

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Did early humans have any natural predators for whom human meat was an important dietary component?

8 upvotes

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When people talk about a region having “fertile” soil, what specific factors are they referring to? Chemical composition? Drainage? Other?

5 upvotes

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If I were floating alone in deep space, would small objects/particles go into orbit around me and/or get caught in my gravitational pull?

1 upvotes

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How can sensitivity to spicy food be culturally determined?

1 upvotes

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Why does time seem to move faster as we age?

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In the movie Avatar, a character says that the alien Na'vi people have carbon fiber bones. Is that (exo-)biologically possible?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Did early humans have any natural predators for whom human meat was an important dietary component?	8
When people talk about a region having “fertile” soil, what specific factors are they referring to? Chemical composition? Drainage? Other?	5
If I were floating alone in deep space, would small objects/particles go into orbit around me and/or get caught in my gravitational pull?	1
How can sensitivity to spicy food be culturally determined?	1
Why does time seem to move faster as we age?	1
In the movie Avatar, a character says that the alien Na'vi people have carbon fiber bones. Is that (exo-)biologically possible?	1