askscience

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How realistic is the amount of habital planets in comparison to non-habital planets in science fiction universes (like StarWars) or 4X games?	1
In season 1/2 of Stargate: SG1 they find out about a universal language based on atoms, as they are the universal building blocks of everything. But how would such a language work?	1
Why does anxiety and/or depression often lead to an alcohol and/or drug addiction?	1
In the "Fallout" series of post-nuclear apocalypse role-playing games by Bethesda Softworks, the fictional currency of bottle caps is "backed by water" (at least in the New California Republic). What exactly does that mean? And does that even make sense?	1
Throughout history governments have printed money to pay for things like the army. But how can that be, when the increase in money supply should be met by an equivalent increase in inflation?	1
I often hear people say and pop culture media reference the trope that Climate Change has the potential to lead to humanity's extinction or at least destroy society as we know it, Mad Max style. What are the possible consequences of the worst case scenario for Climate Change?	1
What does a PTSD flashback actually look like and what are they actually activated by?	1
PTSD and Flashbacks: All my knowledge is from how media portrays it. But how does it actually work and look like in real-life?	1
Every continent has a unique name, except for the America's. Those have the same name, just with North and South added respectively. Why?	1
What is the maximum biologically stable height for humans? How tall can we get before we encounter too many health problems, or it no longer works because physics? Could 50 feet tall giants theoretically exist?	1

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