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

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Which would be more difficult to colonize; the surface of Mars or the ocean floor of Earth?

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Would it be feasible to use a railgun to fire a cremated person's ashes into space?

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In X-Men First Class, Magneto kills the guard of his plastic prison by manipulating the ferrous hemoglobin in his blood, drawing the blood out through the skin. What strength of magnetic field would it take to do this in real life?

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If puberty is what determines how deep a man's voice will be, why is it that we can easily tell whether a voice belongs to a 25, a 45, or a 65 year old man?

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Is pure oxygen flammable?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Which would be more difficult to colonize; the surface of Mars or the ocean floor of Earth?	1
Would it be feasible to use a railgun to fire a cremated person's ashes into space?	1
In X-Men First Class, Magneto kills the guard of his plastic prison by manipulating the ferrous hemoglobin in his blood, drawing the blood out through the skin. What strength of magnetic field would it take to do this in real life?	1
If puberty is what determines how deep a man's voice will be, why is it that we can easily tell whether a voice belongs to a 25, a 45, or a 65 year old man?	1
Is pure oxygen flammable?	1