140 words If the Moon disappeared right now, how long would momentum keep tides going before we were effectively only left with solar tides? 116 words How different would our civilization be in the absence of fossil fuels? 559 words Gravity and the speed of light. 117 words Do we have enough data in the world to map the human brain? 116 words This is an abstract question: Is it logical to think that there is SOME combination of drugs that could help a patient even if none of the drugs have worked so far?/ 153 words If I'd like to chuck something into the bottom of the Marianas Trench, how can I ensure that it sinks straight down and doesn't glide off course? 169 words Could We Help Chimps Evolve? 122 words Why has the discovery of quantum mechanics seemingly not caused scientists to rethink the paranormal? 108 words Why is the phenomenon of reincarnation not taken seriously by the science community? Not even by memory researchers. 341 words I read in a biology book that a vagina will absorb more sperm after an orgasm. How in the world can we know that? 397 words Lab Leak Theory 157 words I am a psy. grad. who also struggles with mental health issues and I think that mental health awareness is both heavily romanticised and heavily institutionalised. How can services that treat mental health and mental issues be able to be more effective and humanistic? 188 words What if we do nothing to try to stop climate change? What are the consequences in 5 years? What about 10 or 20? How long before life becomes difficult for the majority of humans to live? 203 words Question about encoding matter into photons speed of light travel, hard to fit in title 380 words If someone was taken into a 4th spatial dimension, what would it look and feel like? How would our brains interpret it? 251 words Why does the human circulatory system not get jammed? 140 words Scientists have recently discovered that a mushroom called, Pestalotipsis Microspora, is capable of eating plastic. It contains a chemical that breaks down polyurethane, the key ingredient in plastic. This could be used to clear out landfills. Thoughts? 170 words If quantum spin does not have an absolute axis, just an abstract up or down "direction"; how come magnets have very clear axes that can be rotated granularly into any direction and have their magnetic field rotate with them? 159 words I say that not in a million years could one person alone create a smartphone from scratch. My friend disagrees. Which one of us is right? 146 words What would happen if we built canals and let ocean and sea water into the sahara desert?