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

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When we speak of the scale of time in the universe as "years," how are we determining that when a solar year by definition did not exist at the beginning of time?

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How different is each person's gut bacteria biome and how is it acquired?

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Today's Mayan and Incan descendants are typically shorter than average people of European descent, do we know if this was true pre-Columbus?

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What are the reasons for the differences in sneezing patterns between individuals or episodes of sneezing, e.g. rapid succession sneezes vs intermittent or large single sneeze?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
When we speak of the scale of time in the universe as "years," how are we determining that when a solar year by definition did not exist at the beginning of time?	1
How different is each person's gut bacteria biome and how is it acquired?	1
Today's Mayan and Incan descendants are typically shorter than average people of European descent, do we know if this was true pre-Columbus?	1
What are the reasons for the differences in sneezing patterns between individuals or episodes of sneezing, e.g. rapid succession sneezes vs intermittent or large single sneeze?	1