AskScience Panel of Scientists XXII |
- AskScience Panel of Scientists XXII
- If Earth's mantle is liquid, does it have "tides"?
- Does a woman's brain change after she's had a baby?
- Why do some hybrids (Such as africanised honeybeees) produce fertile offspring, while most (like Ligers and mules) produce infertile offspring?
- What would be the human biological equivalent of a day?
- How do we know the accuracy of a given test or method without already having a better test? (E.g.: a coronavirus antibody test is 99.8%accurate–how do we know?)
- Are there non-human animals that have a sense of beauty?
- Why is it not possible to use Immun-Plasma as a passive vaccination against Covid-19?
- Nucleons lose mass when they fuse together into atoms. Do atoms also lose mass when they join together into molecules, even if only a tiny amount?
- When a person goes without food for many days, what happens to the bacteria in their body?
- Why is the scattering length negative for the singlet np scattering and positive for the triplet np scattering?
- If an oil reservoir (petroleum) exists near a volcano, would a rising magma ignite it and make a natural explosion?
- Why is MERS more deadly than SARS-CoV-2?
- Protein synthesis in chemistry?
- How is the energy created by ATP hydrolysis used by a cell?
- Do environmental effects on our ancestors intelligence affect our own?
- How do you estimate the age of the oldest live organism on the planet?
- How much of an effect does gravitational time dilation have in accounting for galactic disk rotation discrepancies?
- People with AB+ blood type have a higher rate for developing clotting disorders. Are they also more susceptible to complications with COVID-19?
- Can the food we eat affect our descendants' genes?
- In physics we learn of kinetic and static frictions. It's binary in that the object is moving or it isn't. Is it really binary or does the coefficient for kinetic friction scale with speed?
| AskScience Panel of Scientists XXII Posted: 24 Jan 2020 05:32 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:
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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]  |
| If Earth's mantle is liquid, does it have "tides"? Posted: 11 May 2020 05:06 AM PDT I am reading Journey to the Center of the Earth, and in the book the Professor rejects the idea that Earth is hot in its interior and that the mantle cannot be liquid. A liquid mantle, he suggests, would be subject to tidal forces and we would be bombarded with daily earthquakes as Earth's innards shifted up and down. Obviously the mantle is somewhat goopy, but I feel the Professor raises a point. So since the mantle is at least something not solid, is it subject to tidal forces, and how does that affect the Earth's crust? [link] [comments]  |
| Does a woman's brain change after she's had a baby? Posted: 11 May 2020 07:28 AM PDT My substitute biology teacher (not properly educated in the subject) mentioned off-hand that it happens to primates when they give birth. I don't know how true that is, but I'm wondering if it's the same for humans? [link] [comments]  |
| Posted: 11 May 2020 08:05 AM PDT I recall one of my earliest understandings on the definition of a species is a distinct individual who can breed with members of its species to produce fertile offspring, but whose offspring with another species will either terminate or be infertile. I've heard the term "Subspecies" before, but I'm not sure what it actually means. Similarly, cross pollination seems common in plants - is that also within a single species? [link] [comments]  |
| What would be the human biological equivalent of a day? Posted: 11 May 2020 07:29 AM PDT What I mean is: if an average person would fall asleep when he wants to/needs to and wake up without any alarms - how long would the whole cycle last? I doubt its gonna be precisely 24 hours. [link] [comments]  |
| Posted: 10 May 2020 05:56 PM PDT Say we have a method for testing something, for example whether someone has coronavirus antibodies or not. How can we find the accuracy of this test, for example that it gives the right answer 99.8 percent of the time? Do we have to already have another test or method (perhaps expensive and slow) which we know is close to perfectly accurate, and use it to compare results? (But how do we know that old method is any good?) Or, do we only need another method where the accuracy is already known? (but how did we come to know THAT accuracy... ) Or, can we estimate accuracies in some other way? [link] [comments]  |
| Are there non-human animals that have a sense of beauty? Posted: 10 May 2020 05:07 PM PDT I know that most/all animals have a sense of mate choice preference. But have there been any studies that show that any animals have a appreciation of beauty for its own sake? [link] [comments]  |
| Why is it not possible to use Immun-Plasma as a passive vaccination against Covid-19? Posted: 11 May 2020 07:55 AM PDT In a German city called Erlangen, immunoplasma is used for the treatment of corona patients. However, it only alleviates the disease and does not cure the affected person. In case of rabies, a high concentration of antibodies is injected as a passive vaccination to cure the patient. Why does this not work with Covid 19? [link] [comments]  |
| Posted: 10 May 2020 06:51 PM PDT I know that free protons and neutrons weigh more than bound protons and neutrons (e.g. the energy that powers the sun), but do molecules have a similar conversion of matter to energy when they are created from free atoms, albeit a way smaller amount? [link] [comments]  |
| When a person goes without food for many days, what happens to the bacteria in their body? Posted: 10 May 2020 11:08 AM PDT |
| Posted: 11 May 2020 03:25 AM PDT In the Nucleon-Nucleon Scattering, after solving the Schrodinger equation for free particles, u(r) for r>R and r<R is obtained, which must be continue in r=R, but the graphics are different for the singlet and triplet. Why are they different? [link] [comments]  |
| Posted: 10 May 2020 09:11 AM PDT |
| Why is MERS more deadly than SARS-CoV-2? Posted: 10 May 2020 08:39 PM PDT MERS has a 36% mortality rate whereas SARS-CoV-2 has around a 3% mortality rate. Why? They both have, essentially, the same symptoms and seem to do the same thing. So why is MERS so much deadlier? [link] [comments]  |
| Protein synthesis in chemistry? Posted: 10 May 2020 03:32 PM PDT If a certain protein is composed of a sequence of amino acids, can you simply combine said amino acids to create that protein? Is mixing amino acids a plausible way of creating a protein? [link] [comments]  |
| How is the energy created by ATP hydrolysis used by a cell? Posted: 10 May 2020 02:29 PM PDT My understanding is that the third phosphate of the ATP molecule is removed via hydrolysis which releases energy. What I don't understand is the mechanism through which that energy can be utilized by the various parts of a cell to do work. As a side question, do enzymes catalyze the hydrolysis or is it done by whatever is utilizing the ATP? [link] [comments]  |
| Do environmental effects on our ancestors intelligence affect our own? Posted: 10 May 2020 12:27 PM PDT It has been shown that education for example has the ability to raise an individuals IQ. Would repeated education of many generations of a family have an impact on a child in that family's intelligence? [link] [comments]  |
| How do you estimate the age of the oldest live organism on the planet? Posted: 10 May 2020 12:55 PM PDT Every time I read of such a coelacanth or whatever marine creature is 200 years old, I cannot help wondering what is the science behind it. How can you know how old that thing could be with external observation and what I would expect to be quite simple models (I may be wrong). I could understand a few ways if the organism (plant or animal) is getting autopsied but otherwise what margin of error, what techniques are used? https://en.m.wikipedia.org/wiki/List_of_longest-living_organisms [link] [comments]  |
| Posted: 10 May 2020 06:47 PM PDT Time runs slower as gravitational potential decreases (closer to the gravitational source)[1], so doesn't it follow that from an observer's perspective outside the system that the two relative locations in the system will be out of sync in time? I am certain someone already checked the math on this, but it seems to me that a galaxy could be viewed as a gravitational bubble in which time passes more quickly the closer to the edge of the bubble one observes. Time doesn't pass uniformly for the entirety of the observed galaxy, so what we see at the edges must be moving in accelerated time relative to the bulge. The only question is then whether the dilation due to mass can account for the observations. Where can I find sources analyzing this? (I am a layperson, but I am comfortable reading journal articles, even if I can't check the math.) [link] [comments]  |
| Posted: 10 May 2020 02:02 PM PDT I am AB+ and remember hearing about this in a hematology course. I tried looking up this question online, but I had very little success finding relevant information. [link] [comments]  |
| Can the food we eat affect our descendants' genes? Posted: 10 May 2020 06:46 AM PDT |
| Posted: 10 May 2020 09:24 AM PDT How I think of it is: static frictions have a higher coefficient because the objects are more set and locked in. As soon as it's in motion the ridges on the objects aren't as locked and sort of bounce and skip over the ridges which is why the coefficient is lower. Much like a motorcycle going over those small bumps, the faster the person goes the less bumping they feel. Is it the same with kinetic friction? [link] [comments]  |
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