/u/[deleted]'s posts in /r/askscience
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If carbon is what gives strength to steel, then why is steel stronger than pig iron(cast iron) which has higher carbon content?
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Why is it that a male lion and a female tiger create a liger but a male tiger and a female lion create the significantly different tigon? Is this typical for hybrid animals?
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If helium rises, and we've "used" nearly all of it that we have, and it's a noble element, shouldn't their be a bunch of helium being held against the inside of our atmosphere?
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