Besides lightning, what are some ways that fire can occur naturally on Earth? |
- Besides lightning, what are some ways that fire can occur naturally on Earth?
- How are sutures dissolved if they are made of chitin and if chitin has beta-glycosidic bonds like cellulose?
- If we manage to confine air in a space with no perturbation (wind, sudden temperature changes, etc), will the heavier molecules sink to the bottom?
- Why are so many recently discovered expolanets gas giants? Since the first few planets in our solar system are rocky worlds, are we normal or weird?
- Do emotion-related increases in heart rate increase metabolism the same way aerobic exercise does?
- What causes the ear to "pop" during a rise or fall of elevation ?
- Why doesn't atoms nuclei collapse?
- Do objects fall at the same rate in a uniform electric field, the way they do in a uniform gravitational field?
- If there was no moon, would there be waves?
- Would the sun noticeably dim if it were 'eclipsed' by Venus or Mercury?
- After the Chicxulub impactor struck the Earth how long did it take for the last non-semi-aquatic tetrapods that were ~25kg to die?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- How did we discover the chemical composition of the sun?
- Can dogs recognize their siblings (different litter but same genetic parents) through scent when introduced?
- Do primates who menstruate experience similar symptoms (mood change, cramping, wanting certain types of food) that human females do?
- Do our lungs fill evenly when we breathe?
| Besides lightning, what are some ways that fire can occur naturally on Earth? Posted: 05 Sep 2018 06:25 PM PDT |
| Posted: 06 Sep 2018 06:47 AM PDT |
| Posted: 05 Sep 2018 06:29 PM PDT Just wondering. Also, if brownian motion keeps the system homogeneous, would a decrease in the temperature of the system decrease it enough to achieve a seperation of gases? Not sure if it's an adequate question. Couldn't find much online (or maybe I suck at looking it up). [link] [comments]  |
| Posted: 05 Sep 2018 08:15 PM PDT |
| Do emotion-related increases in heart rate increase metabolism the same way aerobic exercise does? Posted: 05 Sep 2018 06:15 PM PDT I am wondering whether non-exericse increases in heart rate (e.g., high heart rate during an anxiety attack or following smoking) affects metabolism in a way proportionate to increased metabolism during exercise. Or is the increase seen in exercise solely from using one's muscles? [link] [comments]  |
| What causes the ear to "pop" during a rise or fall of elevation ? Posted: 05 Sep 2018 06:04 PM PDT |
| Why doesn't atoms nuclei collapse? Posted: 05 Sep 2018 05:43 PM PDT I'm not talking about the reason electrons don't crash into the atom nucleus. The question I'm asking is, if the strong nuclear force is that much stronger than the electromagnetic force at the distances of a atom nucleus, why does it have a radius? [link] [comments]  |
| Posted: 05 Sep 2018 11:44 AM PDT In a gravity-free environment, If we had a theoretical planet that had no gravitational field but did have an electric field (let's say positively charged) and we dropped objects with equal negative charges that weighed different amounts onto it, would those objects fall at the same rate? [link] [comments]  |
| If there was no moon, would there be waves? Posted: 05 Sep 2018 07:58 AM PDT And if there was no moon would there be life? I feel like the moon gently agitated the ocean and brought life together. Do planets need water and a moon for life? [link] [comments]  |
| Would the sun noticeably dim if it were 'eclipsed' by Venus or Mercury? Posted: 05 Sep 2018 01:12 PM PDT |
| Posted: 05 Sep 2018 11:19 AM PDT |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 05 Sep 2018 08:12 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| How did we discover the chemical composition of the sun? Posted: 05 Sep 2018 07:58 AM PDT I'm asking about the experimental methods we used to determine the chemical composition of the sun by mass... I know it has something to do with emission/absorption spectroscopy but fail to grasp the full concept behind it [link] [comments]  |
| Posted: 04 Sep 2018 07:28 PM PDT My family is adopting another puppy from the same breeder (both have the same parents but this one is from a more recent litter) and I am curious if our current dog will recognize that he is genetically similar. I've learned about human pheromones and attraction based on non-overlapping immune makeup and I was curious if this potentially translated to dogs considering their heightened smell capabilities. [link] [comments]  |
| Posted: 04 Sep 2018 05:09 PM PDT |
| Do our lungs fill evenly when we breathe? Posted: 04 Sep 2018 07:04 PM PDT The pressure in the lungs upon inhaling will be the same, but are the factors that cause one lung to be smaller than the other or do they expand together and at the same rate?? [link] [comments]  |
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