AskScience Panel of Scientists XXVI |
- AskScience Panel of Scientists XXVI
- Why is the speed of sound higher in warmer air?
- Why root canal hurts soo much if the nerve is dead?
- How do they make caffeinated drinks not caffeinated?
- How are Countries named in their non-native languages?
- What do common antibody tests reveal? Can they tell between a person previously infected, or vaccinated, or both infected and vaccinated?
- Would terminal velocity on Mars be the same as on earth and take longer to reach, or be lower on Mars?
- Are there any studies suggesting whether long-COVID is more likely to be a life-long condition or a transient one?
- Can T-lymphocytes of a person be cloned in vitro?
- In the even of an explosive decompression, why would pilots change altitude slowly instead of quickly??
- Are lateral flow test kits damaged by freezing temperatures?
- How do less dense material rise in a denser medium on Earth when there is gravity acting on matter but there is no input of energy to make the less dense material rise?
- How does gravity work in terms of which direction the force is applied?
- Are people who catch COVID-19 multiple times more at risk for long COVID?
- Were there periods of rapid or 'runaway' global warming, due to tipping points and feedback loops, during the Paleocene-Eocene Thermal Maximum occur?
- Why do Oak Woodlands and Savannahs thrive in the Bay Area and Central Valley but only exist in small pockets in Southern California?
- Are we tending towards more infective variants of coronavirus?
- Why are there only two signals used in GPS? Wouldn’t having more than two be more accurate?
- Does dietary cholesterol raise serum serum cholesterol levels?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- After the K-T extinction, how did the survivors live while the Earth was recovering?
- How is our atmospheric pressure connected to the gravitational pull of Earth?
- How do drinks that contain terpenes solve them in water?
- What is the delta V required to reach the Lagrange point between Sol and Earth and what's an effective way to reach it?
- How does the recent Tonga eruption compare to the famous Mt. Vesuvius eruption?
| AskScience Panel of Scientists XXVI Posted: 20 Jan 2022 09:56 PM PST Please read this entire post carefully and format your application appropriately. This post is for new panelist recruitment! The previous one is here. The panel is an informal group of Redditors who are either professional scientists or those in training to become so. All panelists have at least a graduate-level familiarity within their declared field of expertise and answer questions from related areas of study. A panelist's expertise is summarized in a color-coded AskScience flair. Membership in the panel comes with access to a panelist subreddit. It is a place for panelists to interact with each other, voice concerns to the moderators, and where the moderators make announcements to the whole panel. It's a good place to network with people who share your interests! ------------------- You are eligible to join the panel if you:
------------------- Instructions for formatting your panelist application:
------------------- Ideally, these comments should clearly indicate your fluency in the fundamentals of your discipline as well as your expertise. We favor comments that contain citations so we can assess its correctness without specific domain knowledge. Here's an example application:
Please do not give us personally identifiable information and please follow the template. We're not going to do real-life background checks - we're just asking for reddit's best behavior. However, several moderators are tasked with monitoring panelist activity, and your credentials will be checked against the academic content of your posts on a continuing basis. You can submit your application by replying to this post. [link] [comments] |
| Why is the speed of sound higher in warmer air? Posted: 20 Jan 2022 04:41 AM PST My understanding is that sound travels faster through solids and liquids than through gases because the former states are denser. In other words, molecules would collide with less delay between neighbors when passing along a pressure wave if the density is higher. But it seems that the speed of sound is higher in hotter air. Hotter air is less dense than cooler air (e.g., hot air balloon). Can someone please explain what causes the speed of sound to increase in warm air, but also increase when gases are turned to liquids or solids? [link] [comments] |
| Why root canal hurts soo much if the nerve is dead? Posted: 20 Jan 2022 08:06 AM PST |
| How do they make caffeinated drinks not caffeinated? Posted: 20 Jan 2022 11:40 AM PST Because tea comes from a plant, how do the remove the caffeine from it? The same for coffee etc. [link] [comments] |
| How are Countries named in their non-native languages? Posted: 20 Jan 2022 11:48 AM PST Even in multi-lingual countries, how did they decide what the place should be called in the different languages? Where does the English name for Germany or Austria come from when their German-language names are vastly different in pronunciation and literal interpretation? Who took "Nippon" and said, "yeah, that's 'Japan', now."?? [link] [comments] |
| Posted: 20 Jan 2022 08:06 AM PST I have been reading about the different antibody responses to natural infection vs. antibody responses to the different types of vaccination (mRNA, viral vector etc), as well as how in cases of both infection and vaccination, the response can be different if you were infected first, or vaccinated first. I'm wondering what, exactly, a commonly available, relatively cheap (ideally a two figure sum) antibody test would reveal. Will the result just be positive or negative? Or is it given in terms of the types of antibodies and their relative concentrations? In other words can such tests differentiate between those with infection- and vaccine-aquired immunity? [link] [comments] |
| Posted: 20 Jan 2022 09:53 AM PST |
| Posted: 19 Jan 2022 03:19 AM PST |
| Can T-lymphocytes of a person be cloned in vitro? Posted: 20 Jan 2022 01:21 AM PST If so, how is it done? Via bone marrow extraction perhaps? [link] [comments] |
| Posted: 19 Jan 2022 12:43 PM PST Hi, So, wouldn't you want to equalize pressure as soon as possible? That would mean like more oxygen, not having stuff flying around, etc. However, I read somewhere that experienced pilots do this slowly as possible instead of quickly. Why? Is it cause of pressure sickness? I thought that occurred in divers cause they absorb nitrogen gas, how does that happen for people in a pressurized cabin? Do other fluids potentially expand? [link] [comments] |
| Are lateral flow test kits damaged by freezing temperatures? Posted: 20 Jan 2022 07:32 AM PST How is it possible to distribute home test kits, such as COVID but not exclusively, by mail during periods of freezing temperatures when the tests are supposed to be stored above 36F/2C? Can freezing influence the results of these kinds of tests? [link] [comments] |
| Posted: 20 Jan 2022 07:24 PM PST If my understanding is correct, a less dense material "rising" means it is going against the direction of gravity, and this is physically impossible according to the laws of Physics. [link] [comments] |
| How does gravity work in terms of which direction the force is applied? Posted: 20 Jan 2022 05:41 PM PST Consider this scenario:
For body A, does the force pull towards B's position at the point of wave emission or is it somehow being pulled towards B's current position? If the latter is the case, how does A know B's current position? Bonus question. Does gravitational waves from different sources collapse into one direction or will the body be pulled towards all the sources directions? [link] [comments] |
| Are people who catch COVID-19 multiple times more at risk for long COVID? Posted: 20 Jan 2022 12:16 PM PST |
| Posted: 20 Jan 2022 02:53 AM PST |
| Posted: 20 Jan 2022 03:29 AM PST |
| Are we tending towards more infective variants of coronavirus? Posted: 20 Jan 2022 10:44 AM PST The delta and omicron variants have both been touted as more transmissible, replacing the existing variants as the dominant forms in the population. With the emergence of omicron as the new dominant variant, does delta simply disappear as omicron is able to outcompete it for hosts? And using that logic would the next major variant have to be even more transmissible? [link] [comments] |
| Why are there only two signals used in GPS? Wouldn’t having more than two be more accurate? Posted: 20 Jan 2022 11:20 AM PST I'm just wondering why we only have L1 and L2 in GPS (and L5 that will be implemented soon). Wouldnt having more signals to compare against each other improve accuracy of points taken? Is it because a third signal would be redundant, or that it wouldnt increase accuracy to the point of being cost effective? Thank you [link] [comments] |
| Does dietary cholesterol raise serum serum cholesterol levels? Posted: 20 Jan 2022 03:31 AM PST An undergraduate in a health related field here I've come across some really confusing stuff regarding this topic. I've always been kind of health conscious from a young age and interested in this kind of stuff. I was under the impression that saturated fat and cholesterol both contribute to raising serum cholesterol levels. However one of my professors who's now a epidemiologist/professor and was a practising cardiologist stated that dietary cholesterol raising serum cholesterol levels has been debunked and that saturated (and trans) fats contribute to serum cholesterol levels but not dietary cholesterol. I've been reading on this and am more confused than I was before. I see stuff like this Harvard School of Public Health:
But the American heart association and FDA recommend limiting cholesterol consumption etc. and have also come across many studies showing dietary cholesterol does effect heart health as well as websites claiming that a lot of studies are industry funded and not reliable. I would like some clarity on this thanks any input is appreciated [link] [comments] |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 19 Jan 2022 07:00 AM PST 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] |
| After the K-T extinction, how did the survivors live while the Earth was recovering? Posted: 19 Jan 2022 10:30 PM PST Clearly not ALL plant and animal life died out with the dinosaurs. How did the ones that clung to life in the post-Chixculub dark era do so? [link] [comments] |
| How is our atmospheric pressure connected to the gravitational pull of Earth? Posted: 19 Jan 2022 03:21 PM PST "All other things being equal," if instead of 9.8m/s2 we had half that gravitational pull at sea level, would atmospheric pressure also be half? The reason I'm asking is because I'm trying to conceptualize what flying would be like with our level of technology on a planet will lower gravity. Would it become easier to fly since you have to overcome less gravity, or would it be harder because you need more lift due to the atmosphere being thinner, or would it be relatively the same, because the lower gravity would result proportionally similarly lowered density? [link] [comments] |
| How do drinks that contain terpenes solve them in water? Posted: 19 Jan 2022 06:31 PM PST So I read that some drinks contain terpenes like citral to make up the flavour. I'm using terpenes to make liquid for the vaporizer and they taste really good so I wondered if I could make some kind of flavoured softdrinks, but I'm not sure how that works as most terpenes are not solluble in water [link] [comments] |
| Posted: 20 Jan 2022 03:43 AM PST |
| How does the recent Tonga eruption compare to the famous Mt. Vesuvius eruption? Posted: 19 Jan 2022 02:40 PM PST Just as the title asks. Since most of the public has an idea of the Mt. Vesuvius eruption how much does the recent eruption compare. We have a TON of scientific and recorded data with the recent eruption so how accurately can we compare it to Vesuvius? [link] [comments] |
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