Apr 26, 2019
Why do some letters have a completely different character when written in uppercase vs lowercase (e.g. A/a, R/r, E/e), whereas others simply have a larger version of themselves (e.g. S/s, P/p, W/w)?
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Apr 19, 2019
Why does screaming relieve physical pain? What is going on in the brain when we scream? Plus a bonus question: why do some tennis players grunt when they hit the ball?
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Thank you to the r/explainlikeimfive community, and specifically the following reddit users whose questions and...
Apr 12, 2019
Since space has no air in it how can astronauts breathe fresh air inside the International Space Station (ISS)? Do we ship oxygen up to the ISS in tanks? Do we presently have the technology to make a self-sustaining biosphere in space?
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Thank you to the r/explainlikeimfive community, and...
Apr 5, 2019
Why do people have allergies? Why does an allergic reaction cause our bodies to block up our main means of breathing? Why does it seem like so many more children today have severe food allergies than there were 20 years ago?
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Thank you to the r/explainlikeimfive community, and...