/u/screwyoushadowban's posts
Is there a latency period for human vitamin D production upon UVB exposure, or are skin cells synthesizing vitamin D as soon as exposed? Would we get the same amount of vitamin D from 60 ten-second periods of sunlight as from a single 10 minute period of sunlight?
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How did upper-class continental Europeans of the Napoleonic Era judge the Scots? Did they consider them European? White? Civilized or not (quite)? And did they mistakenly assume that the culture and imagery of the Highlands represented the whole country?
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There are tons of secondarily aquatic tetrapod lineages but are there/were there any tetrapods that became aquatic and then terrestrial again? Is it "harder" to come onto land than it is to go into the water/evolve aquatic adaptations?
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Are hardness and toughness always directly inverse in uniform materials? Should I expect that with any two given metals the one that is harder will *always* be less tough (more brittle) than the other? And that a third metal of intermediate hardness will also have intermediate toughness?
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How widespread was the belief in angels, djinn, etc. among Muslims in Anatolia, Europe and the Levant in the mid 19th to mid 20th centuries? Did belief in these beings correlate at all with the rise of European (somewhat broadly secular) Modernism?
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Do historians interrogate "plain, just the facts" data like statistics differently than other kinds of written sources? When can you "trust" statistical data & when not, esp. in the context of endemic prejudices (example within)?
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Do semelparous species/genera go extinct at a higher rate than iteroparous ones? I.e. are "one and done" reproducers (mayflies, salmon) more fragile than repeat reproducers (humans, crocodiles) as species?
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Conduct Unbecoming: How did attitude/behavioral expectations, both on and off-duty, change in the U.S. military between the 1940s and the early 1980s, especially for officers?
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