/u/MissBrainProblems's posts
To what degree does basal human activity (Breathing, flatulence, etc.) contribute to greenhouse gasses?
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To what degree does basal human activity (Breathing, flatulence, etc.) contribute to greenhouse gasses?
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A common figure thrown about is that before the Second Agricultural/Industrial Revolution, roughly 90% of people in settled regions were agricultural workers/food producers. How accurate is this figure, and during what times and in what settled regions was this figure *NOT* at all accurate, and why?
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Why do we do "the potty dance" when we need to urinate but don't have the immediate chance to do so? Does it have a genuine physiological function, or is it entirely cultural?
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Sci-fi is often filled with alien worlds where-in one biome is either dominant or the only one present on the planet. How realistic is this? Do our current projections about exoplanets include the possibility of a "desert world" like Arrakis of Dune fame, or of "jungle planets" and the such?
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It's widely accepted that, since the Industrial Revolution, human activity has greatly reduced the planet's biomass. Between the First Agricultural Revolution and the Industrial, though, did human farming/food production activities ever cause an *increase* in planetary biomass that we can recognize?
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How did the act of baring one's teeth - which is an obvious sign of aggression and threat in other animals - manage to become an expression of joviality and friendliness for humans in the form of the smile?
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