AskScience AMA Series: I am Kerstin de Wit, M.D., and I am passionate about mental health awareness. I am a leading researcher in mental health and blood clots, particularly for people diagnosed with PTSD, anxiety, and/or depression following a blood clot diagnosis. AMA!

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• AskScience AMA Series: I am Kerstin de Wit, M.D., and I am passionate about mental health awareness. I am a leading researcher in mental health and blood clots, particularly for people diagnosed with PTSD, anxiety, and/or depression following a blood clot diagnosis. AMA!
• AskScience AMA Series: I'm Sliman Bensmaia, PhD, a neuroscientist who studies the sense of touch and how it informs motor control in order to develop better neuroprosthetics. AMA!
• Is it possible to take the genetic material from one egg and fertilize another egg?
• Does refraction happens between different metals?
• Where does the energy difference between absorbed and emitted photons go to?
• Is there an equivalent of the Ornstein-Uhlenbeck process with a Lorentzian distribution?
• How are motors cooled within a vacuum?
• Is the speed of sound at sea level the same for all sounds, despite the energy of different sources being different?
• Can rabies antibodies clear the virus from the peripheral nerves?
• Why is Fullerene an Insulator?
• Why does wifi get weaker with distance?
• How we will take energy from future fusion reactors?
• Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
• Do ants get hurt when they fall from a high height?
• Does Plan B prevent implantation or not? If not, why isn’t there an emergency contraceptive that does?
• Why does starvation burn muscle and not fat?
• Why are ADHD diagnoses getting more and more common? Has it always been this present? Or is it actually getting worse?
• Is there anyway to remove Corpora arenacea (brain sand) from the pineal gland?
• Why don't people with hypertension eat equivalent amounts of potassium rather than limiting sodium intake?
• Is there a formula to calculate the temeprature of the universe at a specific time?
• Is there a reasonably calculable relationship between the amount of solar energy absorbed by the entire Earth’s biosphere and some measure of “total organisms”, and do we have models for that over Earth’s history?

AskScience AMA Series: I am Kerstin de Wit, M.D., and I am passionate about mental health awareness. I am a leading researcher in mental health and blood clots, particularly for people diagnosed with PTSD, anxiety, and/or depression following a blood clot diagnosis. AMA! Posted: 23 Feb 2022 04:00 AM PST I am Kerstin de Wit, M.D., and my research takes a close look at the psychological distress that can come with a medical diagnosis, specifically after a blood clot diagnosis. In a recent study, half of the patients with a blood clot had some degree of ongoing psychological distress, such as anxiety, depression, or PTSD, but almost two-thirds of these patients did not seek out mental healthcare. I am an associate professor and emergency medicine physician specializing in bleeding and clotting disorders at Queen's University in Ontario, Canada. Follow me on Twitter at @KerstinDeWit. I'll be on at 11 a.m. US ET (16 UT), ask me anything! Username: /u/WorldThrombosisDay submitted by /u/AskScienceModerator [link] [comments]

AskScience AMA Series: I'm Sliman Bensmaia, PhD, a neuroscientist who studies the sense of touch and how it informs motor control in order to develop better neuroprosthetics. AMA! Posted: 24 Feb 2022 04:00 AM PST Hi reddit, I'm Sliman Bensmaia! As a neuroscientist, my overall scientific goal is to understand how nervous systems give rise to flexible, intelligent behavior. I study this question through the lens of sensory processing: how does the brain process information about our environment to support our behavior? Biomedically, my lab's goal is to use what we learn about natural neural coding to restore the sense of touch to people who have lost it (such as amputees and tetraplegic patients) by building better bionic hands that can interface directly with the brain. I'll be on at 2 PM CT/3 PM ET/20 UT, AMA! Username: /u/UChicagoMedicine submitted by /u/AskScienceModerator [link] [comments]

Is it possible to take the genetic material from one egg and fertilize another egg? Posted: 23 Feb 2022 06:32 PM PST I was thinking, if sperm are essentially vehicles for genetic material to fertilize eggs, would it be possible to simply extract the nucleus of a woman's egg and insert it into the egg of another woman to combine and make a viable zygote? Edit: thank you for all your responses! I've been really interested in genetics lately, to clear up any confusion I was NOT talking about cloning. I meant the eggs of two different women combining to form a viable fetus they would be the biological parents to. submitted by /u/timbukme [link] [comments]

Does refraction happens between different metals? Posted: 24 Feb 2022 07:06 AM PST Might be a stupid question but does the wave in which electricity propagates in metals "bend" between two different metals with different conductivity like light does in materials with different refractive indices? submitted by /u/sz-m-sylvester [link] [comments]

Where does the energy difference between absorbed and emitted photons go to? Posted: 24 Feb 2022 08:40 AM PST My teacher told me when a photon is absorbed and emitted again, it has a lower frequency. So it loses energy. Where does that energy go to? submitted by /u/itmarcel [link] [comments]

Is there an equivalent of the Ornstein-Uhlenbeck process with a Lorentzian distribution? Posted: 24 Feb 2022 03:54 AM PST The Ornstein-Uhlenbeck process is stationary, Markovian and any finite set of random variables from the process will be follow a normal distribution. Is there an equivalent that is also stationary and Markovian, but random variables from that process follow a Cauchy-distribution? If not, can I get such a process if I sacrifice the Markov-property? submitted by /u/Cera1th [link] [comments]

How are motors cooled within a vacuum? Posted: 24 Feb 2022 11:57 AM PST Most open-air motors rely on convection-based cooling (whether passively or actively cooled). How do engineers overcome the lack of air-cooling within a vacuum (not space, but a low-pressure enclosure)? Higher heat-rated materials? Mount them to giant heatsinks? Different configuration/layout? I can't find anything online explaining how they achieve this. submitted by /u/19Jacoby98 [link] [comments]

Is the speed of sound at sea level the same for all sounds, despite the energy of different sources being different? Posted: 24 Feb 2022 01:52 AM PST Would the speed of the sound wave for someone talking be the same speed as an explosion? Curious as the energy input sources of the sounds would be massively different. If the speed is the same, why is this the case? submitted by /u/jackd9654 [link] [comments]

Can rabies antibodies clear the virus from the peripheral nerves? Posted: 23 Feb 2022 07:15 PM PST I was told by a guy on Quora that they can't clear the virus from the peripheral nervous system. This flies in the face of everything I know about rabies in that the only place that antibodies are ineffective is when the virus enters the central nervous system. Is this guy correct, or can antibodies clear the virus from the peripheral nerves? submitted by /u/wworrock [link] [comments]

Why is Fullerene an Insulator? Posted: 24 Feb 2022 01:12 AM PST Shouldn't Buckminsterfullerene be a conductor, because it is bonded with only 3 other carbon atoms. Therefore one electron should be free to move around and conduct electricity, like in the case of graphite. But it doesn't, could someone explain why that's the case submitted by /u/ARPlayz14 [link] [comments]

Why does wifi get weaker with distance? Posted: 24 Feb 2022 10:07 AM PST I've done some research on free path loss and inverse square law. But I don't really understand. Are there other factors why wifi get weaker other than absorbtion and refelction. Can someone explain it to me scientifically? submitted by /u/OG_B3NJAM1N [link] [comments]

How we will take energy from future fusion reactors? Posted: 23 Feb 2022 12:53 AM PST So far the pilot experiments are focused on just creating plasma inside the chambers. So I think that the energy eventually created by successful tests is just lost. But are scientists and engineers already thinking on how to extract/convert this energy in future systems? Will it be through a heat exchanger (pipes) inside the chamber? Will this affect the plasma generation which is already difficult by itself even with no obstructions? In general, which are the challenges related to this further step in designing the next systems? submitted by /u/brattaneipanetti [link] [comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 23 Feb 2022 07:00 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology 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! submitted by /u/AutoModerator [link] [comments]

Do ants get hurt when they fall from a high height? Posted: 23 Feb 2022 10:20 AM PST submitted by /u/rdfporcazzo [link] [comments]

Does Plan B prevent implantation or not? If not, why isn’t there an emergency contraceptive that does? Posted: 23 Feb 2022 10:13 AM PST The FDA says that Plan B can prevent implantation however almost everyone else says it simply delays ovulation. I have also heard from my own OBGYNs that Plan B only works before ovulation. If Plan B isn't effective at preventing implantation, why isn't there an alternative that is? Is it a physiological issue or is no one simply interested in developing a drug with that effect? submitted by /u/calithetroll [link] [comments]

Why does starvation burn muscle and not fat? Posted: 23 Feb 2022 05:18 AM PST When someone starves, the thing I've heard is that the body will consume muscles instead of fat for energy. Is this true? Why would the body consume muscles that could be useful for getting food by climbing trees or hunting instead of consuming body fat, which is meant to be an energy source? submitted by /u/MclovinsForeskin [link] [comments]

Why are ADHD diagnoses getting more and more common? Has it always been this present? Or is it actually getting worse? Posted: 23 Feb 2022 12:18 AM PST submitted by /u/future-renwire [link] [comments]

Is there anyway to remove Corpora arenacea (brain sand) from the pineal gland? Posted: 23 Feb 2022 05:15 AM PST Are there any down sides to calcification of the pineal gland and are there any known ways to remove or limit it? submitted by /u/Oomada9 [link] [comments]

Why don't people with hypertension eat equivalent amounts of potassium rather than limiting sodium intake? Posted: 22 Feb 2022 10:51 PM PST We know sodium can increase blood pressure and make hypertension worse, some people avoid/limit sodium in food. Wouldn't eating potassium in proportion to one's sodium intake significantly reduce risks while maintaining quality of life? Why I'm asking? I searched and found eating potassium is an effective way of controlling high blood pressure but no one I know with hypertension does it. Is there something I'm missing or they should start doing this. Edit: e.g. what if someone eats 1g of Sodium chloride with their food and then eats 1g potassium chloride or (however much is needed to balance the consumed sodium). Edit: not advice or suggestion of any kind, purely academic question. submitted by /u/blackgreenaesthetic [link] [comments]

Is there a formula to calculate the temeprature of the universe at a specific time? Posted: 23 Feb 2022 01:24 AM PST Hello, we usually say when the was t years old its temeprature was T k and it continues, but is there a formula to calculate those numbers or it's only found experimentally? Thanks! submitted by /u/vizex9 [link] [comments]

Is there a reasonably calculable relationship between the amount of solar energy absorbed by the entire Earth’s biosphere and some measure of “total organisms”, and do we have models for that over Earth’s history? Posted: 23 Feb 2022 01:02 AM PST Total Organisms = a better phrase to basically express the…total non-generic energistic output of biological organisms. Meaning not counting potential energy from elevation changes due to geological activity and thermal energy, etc. While reading a minor Reddit debate about whether solar or nuclear energy was a better candidate for short term / long term climate sustainability, I was wondering about another question, but realized I would need to know if this has been studied first and if I was thinking about it correctly. I think I'm not supposed to ask more than one question, so to give an overarching theme between them, something like Maximum Optimal Biological Energy Output submitted by /u/Galderrules [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

Why are you at greater risk to suffer a concussion after the first one?

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• Why are you at greater risk to suffer a concussion after the first one?
• How do Parallel SEM Avoid Interference Between Parallel Electron Beams?
• How does Planck equation solves the ultraviolet catastrophe problem?

Why are you at greater risk to suffer a concussion after the first one? Posted: 22 Feb 2022 05:22 PM PST I just learned this fact. Why is this? submitted by /u/gomi-panda [link] [comments]

How do Parallel SEM Avoid Interference Between Parallel Electron Beams? Posted: 22 Feb 2022 05:37 PM PST Today I learned that companies like Zeiss have electron microscopes that have parallel electron beams, to increase scanning rate. However, given that electrons are negatively charged, how/why do the parallel electrons path's not become distorted? Do computers do the math to correct for distortion caused by electrostatic repulsion? submitted by /u/itisyeetime [link] [comments]

How does Planck equation solves the ultraviolet catastrophe problem? Posted: 22 Feb 2022 01:29 PM PST So, here's what I know about subject: -According to classical approach, radiation of a wave should increase as long as wavelength keeps decreasing. So at some point, it has to go to infinity, but obviously it's not what happens in real life. -Planck, mostly out of desperation, came up with the idea that energy is quantised and also modelled the energy of a wave as E = h • f. When I look at the formula and the idea of quantisation superficially, I can't see why Planck's model leads us to this What prevents energy to increase after some point? submitted by /u/42arthurdentist [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

AskScience AMA Series: We are Human Genetics Researchers from the University of Miami, Ask Us Anything about cutting-edge research techniques like CRISPR, advances in personalized genetic medicine, or just anything genetics!

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• AskScience AMA Series: We are Human Genetics Researchers from the University of Miami, Ask Us Anything about cutting-edge research techniques like CRISPR, advances in personalized genetic medicine, or just anything genetics!
• Why are so many materials opaque? What's special about transparent materials like glass that sets them apart?
• Are dreams powered by the same parts of the brain that are responsible for creativity and imagination?
• How does masturbation reduce the risk of prostate cancer?
• Why isn't flourine the substance with the highest boiling point if it's the most electronegative element?
• What keeps synapses together?
• If you were to be in a tank of water on a rocket/space ship leaving the planet, how much of the g forces would you feel at lift off?
• What makes it easier for some cells to get targeted drug delivery than other cells? Is it the expression of certain cell surface markers?
• A common characteristic of single and multilayer dielectric coatings and interference filters is that transmittance and reflectance spectra shift to shorter wavelengths as they are tilted from normal to oblique incidence. Why?
• Can animals be born with neurodevelopmental disorders?
• Does the moon have different angles of culmination depending on time of month like the sun's yearly analemma?
• What happens to the geometry of an Ellipsoid rubber if you apply uniaxial tensile load to it?
• Why do aerosols fall out of the troposphere within days to weeks, but can stay in the stratosphere for years if they get there - especially the smallest particles?
• What scale is used to measure a mineral's toughness?
• Can the Shepard Tone effect be applied to visuals, or anything aside from audio?
• What is the significance and utility of Feynman Diagrams?
• Does hydrogen peroxide speed up the germination proccess?
• Can dynamic friction coefficient be greater than static?
• How does the Ptolemaic geocentric model explain the concept of solar "years" when it assumes the sun rotates around the earth once per day?
• How does the eye switch from photopic to mesopic vision? Is this switch related to any sleep/circadian responses?
• Does plaque build up in the arteries over a long period of time, is this why statins aren’t as effective as they should be?
• Faster drugs tolerance build-up in a former tolerant subject ?
• During a forest fire, do predators make easy prey of the escaping wildlife or do they themselves just run as well?

AskScience AMA Series: We are Human Genetics Researchers from the University of Miami, Ask Us Anything about cutting-edge research techniques like CRISPR, advances in personalized genetic medicine, or just anything genetics! Posted: 22 Feb 2022 04:00 AM PST Hi r/askscience and Reddit, Thank you so much for your time and attention! We are scientists from the Department of Human Genetics at the University Of Miami Miller School Of Medicine. Our department is the 2nd largest recipient of NIH funding for Genetics Research, and we investigate a wide range diseases using the latest sequencing technology and other cutting-edge methods that have helped us understand the human genome in new and unexpected ways. From better understanding developmental conditions to improving personalized cancer treatments, the future of genetics is incredibly exciting and hopeful. Please let us know any questions you have about the current state or future of genetic research or medicine (EXCEPT PERSONAL HEALTH QUESTIONS OR ADVICE), and we have 3 faculty who have volunteered their time to give their perspectives. Our department is committed to the paramount need for including diverse populations in genetic research, and we hope that engaging with everyone here will help us better connect with the communities we serve. Here today starting at 3:30PM EST (20:30 UT) are three researchers from the University of Miami, ask us anything! Username: /u/IAmA_UMiamiGenetics Dr Karen Nuytemans, PhD Bio: Dr. Nuytemans is a Research Assistant Professor in the John P. Hussman Institute for Human Genomics and the Dr. John T. Macdonald Foundation Department of Human Genetics. She received her PhD from the University of Antwerp in Belgium after which she came to University of Miami, initially as a post-doctoral Fellow, before advancing to her current position. Her research focuses on the genetics of neurodegenerative brain disorders. She has extensive experience working with 'big data' datasets including genotyping and next generation sequencing data, for the identification of common and rare genetic variants in disease. Dr. Nuytemans is specifically interested in Parkinson's Disease (PD) as well as Dementia with Lewy Bodies (DLB) and Frontotemporal Dementia (FTD). Everyone, regardless of race, ethnicity, or socioeconomic status, should have access to personalized medicine. That is why including these disorders across diverse populations in genetic research is one of her main research foci. Dr Susan Halloran Blanton, PhD Bio Dr. Blanton received her PhD in Human Genetics from Virginia Commonwealth University/Medical College of Virginia. She obtained post-doctoral training in Biostatistics (University of Pittsburgh) and Population Oncology (Fox Chase Cancer Center). Her primary research has focused on the mapping of genes for Mendelian and complex diseases; she has been instrumental in studies identifying over twenty genes/loci for Mendelian disorders. Stroke and the underlying genetics of its risk factors, deafness, retinal diseases, skeletal dysplasias, cleft lip/palate, and clubfoot are among the diseases which she currently studies. She collaborates with Drs. Sacco, Wright and Rundek to identify genetic factors influencing white matter and cognition and their relation to ageing. In addition, she has been involved in developing and implementing genetic education materials for Federal and appellate level judges and science writers in an ELSI sponsored project. Dr. Blanton is the Executive Director of the Hussman Institute for Human Genomics as well as the Associate Director of Communications and Compliance. She is an Associate Professor in the Dr. John T. Macdonald Foundation Department of Human Genetics. Dr Michael Cuccaro, PhD Bio Michael L. Cuccaro, Ph.D., Director of the Patient and Family Ascertainment Division in the Center for Genomic Education and Outreach at the John P. Hussman Institute for Human Genomics, is a clinical psychologist who specializes in understanding the interplay between genetics and behavior across development. His work reflects this specialization with a focus on cognitive and behavioral disorders such as autism spectrum disorder, dementia, and intellectual disability. His research concentrates on the development of behavioral methods to construct and extend clinical phenotypes of individuals with these and related disorders to optimize gene discovery. Further, he is working to improve recruitment and enrollment strategies to broaden opportunities for underserved populations to participate in genetic research. In addition, as part of his involvement with the Genetics Pathway for medical students, Dr. Cuccaro is involved in studies of medical trainee and professional attitudes about the utility of genomic information in healthcare. Dr. Cuccaro is also an Associate Professor in the Dr. John T. Macdonald Foundation Department of Human Genetics and the Department of Psychology. submitted by /u/AskScienceModerator [link] [comments]

Why are so many materials opaque? What's special about transparent materials like glass that sets them apart? Posted: 22 Feb 2022 07:11 AM PST Also, why do other EM frequencies outside of visible light go through so many materials so much more easily? submitted by /u/Xelopheris [link] [comments]

Are dreams powered by the same parts of the brain that are responsible for creativity and imagination? Posted: 21 Feb 2022 06:45 AM PST And are those parts of the brain essentially "writing" your dreams? submitted by /u/getwhirleddotcom [link] [comments]

How does masturbation reduce the risk of prostate cancer? Posted: 21 Feb 2022 03:57 PM PST submitted by /u/samedwar [link] [comments]

Why isn't flourine the substance with the highest boiling point if it's the most electronegative element? Posted: 22 Feb 2022 07:04 AM PST I was confused as to why tungsten is considered to have the highest boiling point compared to flourine that has a very low one (according to some online sources). What determines the differences in boiling points between elements? submitted by /u/Icy_Avocado_768 [link] [comments]

What keeps synapses together? Posted: 22 Feb 2022 04:35 AM PST I've read that neurons do not touch at synapses, but are rather really close to each other. So what keeps them from coming undone, especially in a body in movement? submitted by /u/Blakut [link] [comments]

If you were to be in a tank of water on a rocket/space ship leaving the planet, how much of the g forces would you feel at lift off? Posted: 22 Feb 2022 09:03 AM PST submitted by /u/NormalVermicelli1066 [link] [comments]

What makes it easier for some cells to get targeted drug delivery than other cells? Is it the expression of certain cell surface markers? Posted: 22 Feb 2022 07:23 AM PST How hard would it be to do targeted drug delivery to all cells expressing SASP or inflammatory surface markers? Or all cells that have NMDA or dopamine transporters on their surfaces? (or nestin or doublecorticon, or...) submitted by /u/inquilinekea [link] [comments]

A common characteristic of single and multilayer dielectric coatings and interference filters is that transmittance and reflectance spectra shift to shorter wavelengths as they are tilted from normal to oblique incidence. Why? Posted: 22 Feb 2022 03:24 AM PST I've been using a spectrophotometer to measure the reflectance vs wavelength of un coated and coated glass. With all the samples I have measured, I am finding that any peaks, troughs, pass/blocking bands etc, shift to lower wavelengths as I increase the angle of incidence. Can anyone explain this phenomena? submitted by /u/Sin-Silver [link] [comments]

Can animals be born with neurodevelopmental disorders? Posted: 21 Feb 2022 04:12 PM PST Hoping it's the right flair But yeah, as the question states. I know that some animals have been observed to have "human" issues like epilepsy or congential or chromosomal disorders like Down Syndrome, but wondering if they were also observed to have such ND disorders like autism spectrum disorders, global developmental delay, ADHD, dyspraxia etc. Is this something we can assess in animals wild or domesticated? My daughter is on the asd spectrum and it's got me thinking as of late whether this is effects only humans or have scientists not been able to reliably assess animals for ND issues. submitted by /u/rlhignett [link] [comments]

Does the moon have different angles of culmination depending on time of month like the sun's yearly analemma? Posted: 22 Feb 2022 04:07 AM PST So depending on latitude, the sun will have different yearly culminations. In certain places (I think along the equator?) the sun even hits the zenith yearly. Does this sort of movement of daily culmination also occur with the moon? Does it hit a monthly peak before dropping again? submitted by /u/Boomsta22 [link] [comments]

What happens to the geometry of an Ellipsoid rubber if you apply uniaxial tensile load to it? Posted: 22 Feb 2022 05:05 AM PST For sure there will be strain in the direction of the rubbers length axis. Also depending on the Poisson's Rate there might be a Force transversal and compressing the rubber. But does this force make the ellipse an circle as well? submitted by /u/Stevod2121 [link] [comments]

Why do aerosols fall out of the troposphere within days to weeks, but can stay in the stratosphere for years if they get there - especially the smallest particles? Posted: 21 Feb 2022 03:26 PM PST submitted by /u/MYRON96 [link] [comments]

What scale is used to measure a mineral's toughness? Posted: 21 Feb 2022 03:40 PM PST I googled it up but it keeps giving me the mohs scale, wich is used to measure hardness (how difficult it is to scratch a mineral) not how hard it is to break it, is there a similar scale for that? submitted by /u/MatiasFerminPaez [link] [comments]

Can the Shepard Tone effect be applied to visuals, or anything aside from audio? Posted: 21 Feb 2022 06:36 AM PST I am a card game creator and my creative method is taking abstract concepts and forming them into games. The Shepard Tone affect causes one to hear two tones. The notes creates an auditory illusion that the tone (the same tone being played over and over) is raising or falling in scale, higher or lower every time you listen to it. Could this be applied to something visual? Or even conceptual in terms of rules, or even a system that makes one believe something is changing, but isn't? submitted by /u/MrZonka [link] [comments]

What is the significance and utility of Feynman Diagrams? Posted: 22 Feb 2022 01:01 AM PST Was it a massively impressive achievement that he devised them? submitted by /u/shockingdevelopment [link] [comments]

Does hydrogen peroxide speed up the germination proccess? Posted: 21 Feb 2022 05:10 PM PST Was watching this TikToker who is know for household hacks. Normally he makes some sense but now this is heading towards 5 minute craft territory. While I can see hydrogen peroxide speading up the germination process by maybe a day or 2, for seeds to be that large cannot happen in just 24 hours.... right? Is this a thing? submitted by /u/TheElementOfFyre [link] [comments]

Can dynamic friction coefficient be greater than static? Posted: 21 Feb 2022 12:19 PM PST Are there any two materials that have greater dynamic friction coefficient than static friction coefficient against each other? Or is it simply impossible because of logic? submitted by /u/Book_Lover_42 [link] [comments]

How does the Ptolemaic geocentric model explain the concept of solar "years" when it assumes the sun rotates around the earth once per day? Posted: 21 Feb 2022 07:04 AM PST I was reading an old Arabic book written in the 1200s AD and in one section it was comparing the Muslim calendar which is based on lunar years and the "Roman" calendar (as it so named it) which was based on solar years. So the author said that "the Roman year consists of 365 days which is the time it takes for the sun to cross/rotate the Celestial circle once". I know the model used during the time of the author is the Ptolemaic one since the same book in the first few chapters explains their concept of how the universe works (clearly based on the Ptolemaic model as he even quotes Ptolemy every now and then), and it states that the night and day cycle occurs because the sun rotates around the earth once every 24 hours. my confusion is, what is exactly meant by "the sun crossing the celestial circle). in other words, how does the geocentric model explain a year based on the sun's rotation that takes 365 days while at the same time establishing that the sun rotates completely around the earth once every 24 hours? submitted by /u/Sweet_Barracuda_6995 [link] [comments]

How does the eye switch from photopic to mesopic vision? Is this switch related to any sleep/circadian responses? Posted: 21 Feb 2022 01:05 PM PST I'm looking for details on how these responses work on a fundamental level, as in what chemicals go where. I've been researching the effects of blue light on the sleep cycle and can't find a detailed explanation of how a frequency of light translates to an increase in melatonin production as this WebMD graph so simply claims; all the resources I've seen on this are either confident with zero nuance or detailed but uncertain. submitted by /u/Adventurous_Heart_34 [link] [comments]

Does plaque build up in the arteries over a long period of time, is this why statins aren’t as effective as they should be? Posted: 20 Feb 2022 09:50 PM PST Is this because statins are prescribed to late in age when the plaque buildup had already happened, would it be better to give statins to people with hereditary heart disease from an early age? submitted by /u/jjbbal255 [link] [comments]

Faster drugs tolerance build-up in a former tolerant subject ? Posted: 21 Feb 2022 02:31 AM PST Would someone that had built and lost tolerance to a drug in the past builds a tolerance faster if he was treated with that same drug or a drug with a cross-resistance ? submitted by /u/Carbonara_Warrior [link] [comments]

During a forest fire, do predators make easy prey of the escaping wildlife or do they themselves just run as well? Posted: 20 Feb 2022 06:48 PM PST I'm Imagining all the prey species fleeing the fire into the areas not on fire, with predators having a choice between making easy prey of them or seeking shelter itself. Just wondering if there has ever been any research into this. submitted by /u/Boneapplepie [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

Since the sun's upper atmosphere is hotter than the surface, and we've already sent spacecraft through the upper atmosphere - what is stopping us from sending a spacecraft close to the surface of the sun?

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• Since the sun's upper atmosphere is hotter than the surface, and we've already sent spacecraft through the upper atmosphere - what is stopping us from sending a spacecraft close to the surface of the sun?
• What part of the brain controls the tail in primates, and does it do anything today in humans?
• How do test-negative case-control studies ensure that they don't just lead to negative tests despite actually being infected and symptomatic?
• Can the principles for binding energy be applied to quarks?
• Can the Miller-Urey Experiment create amino acids and polypeptides?
• Do personalized ads drive the production of physical stuff?
• Is there a difference between Flexflow home tests and PCR tests in terms of accuracy?
• How can a currency be "backed" by something?
• Does the length or shape of a straw change how much force is needed to move a specific amount of air?
• Does the orbital positions of the planets, impact the trajectory of the sun through the galaxy?
• Why are plasmids used for horizontal gene transfer and not chromosomes (bacteria)?
• Is there a "frame rate" for reality? More specifically, is there a point in time where there is no motion whatsoever even at the quantum level?
• How does a salt scrub make the surface of a yoga mat less slippery/more grippy?
• Does vasodilation cause an appreciable change in blood pressure?

Since the sun's upper atmosphere is hotter than the surface, and we've already sent spacecraft through the upper atmosphere - what is stopping us from sending a spacecraft close to the surface of the sun? Posted: 20 Feb 2022 04:47 AM PST I assume there are more limiting factors than temperature here - signal interference, high radiation levels, etc. The parker solar probe has travelled into the upper atmosphere of the sun which is, (to my knowledge) even hotter than the surface. Could we theoretically create a probe that would make very close passes to the sun's surface and obtain ultra high-resolution imagery of it? submitted by /u/epsilonal [link] [comments]

What part of the brain controls the tail in primates, and does it do anything today in humans? Posted: 20 Feb 2022 08:51 AM PST submitted by /u/MadScientistWannabe [link] [comments]

How do test-negative case-control studies ensure that they don't just lead to negative tests despite actually being infected and symptomatic? Posted: 19 Feb 2022 08:40 PM PST In particular, how does one make sure that the vaccine does not simply make detection of the virus more difficult without actually providing increased protection, i.e. you're symptomatic but test negative? submitted by /u/Compostello [link] [comments]

Can the principles for binding energy be applied to quarks? Posted: 20 Feb 2022 07:19 AM PST So in nuclear fission, large atoms are split and part of their binding energy gets turned into kinetic energy. Quarks are held together to form hadrons using the strong nuclear force the same way atomic nuclei are held together, with (from what I've researched) hundreds of times the amount of energy. I know from what we currently understand trying to break the strong nuclear force keeping quarks together is used to create more quarks, but would there theoretically be any way a quarks's chromodynamic binding energy within a nucleon can be released? submitted by /u/jamx02 [link] [comments]

Can the Miller-Urey Experiment create amino acids and polypeptides? Posted: 20 Feb 2022 08:06 AM PST I was reading up on Miller-Urdu's results from their experiment earlier and I noticed that while simple organic compounds were listed (eg. Carbonic acids, simple amines, cyanide etc.) there was mention on Wikipedia that repeats of this experiment led to even more complex molecules emerging- but I couldn't find a list of these results. If you recreated Miller-Urey, and maybe added another "stage" to the experiment that mixed these new organic molecules, is it possible for them to form amino acid chains without any human interference? Are there any articles I could read about this if so? submitted by /u/A_HECKIN_DOGGO [link] [comments]

Do personalized ads drive the production of physical stuff? Posted: 20 Feb 2022 05:11 AM PST I recently read a claim in a book stating that data-driven personalized ads drive "uber-consumerism". That got me thinking: what scientific evidence do we have that as a society we consume more (physical) stuff because of personalized ads? There seem to be lots of studies showing that individual companies can increase their revenue by adopting personalization, but is that revenue subtracted from competitors or does personalization actually drive demand? I'd imagine that this must be a difficult thing to study - one can probably find a lot of interesting correlations, but causation will be hard to demonstrate? submitted by /u/jhinboy [link] [comments]

Is there a difference between Flexflow home tests and PCR tests in terms of accuracy? Posted: 20 Feb 2022 07:33 AM PST submitted by /u/Equivalent_Name4643 [link] [comments]

How can a currency be "backed" by something? Posted: 19 Feb 2022 09:12 AM PST How can the value of a piece of paper be intrinsically tied to a given quantity of metal? Suppose I want to start my own currency, let's call it Llamacoin, and tie the value of 1 llamacoin to 1 actual llama. Would I have to keep a number of llamas, somewhere, equal to the number of llamacoins that exist? Would I need to have a system for people to exchange 1 llama for 1 llamacoin at an official exchange? Would I need to continually buy and sell llamas to make their value match the market value of my coin? submitted by /u/Mutant_Llama1 [link] [comments]

Does the length or shape of a straw change how much force is needed to move a specific amount of air? Posted: 19 Feb 2022 12:15 PM PST Let's say I've got 1 foot long straight straw with an inch diameter 2 foot long straight straw with an inch diameter 1 foot long (if it were laid out straight) spiral straw with an inch diameter 1 foot long straight straw with a half inch diameter. Does the force needed to move x air through any of these change? Obviously (I think?) the half inch diameter would have to go slower but would it take more force? submitted by /u/Fenald [link] [comments]

Does the orbital positions of the planets, impact the trajectory of the sun through the galaxy? Posted: 19 Feb 2022 11:16 AM PST For example: would a planetary alignment put enough gravitational drag on the star to move the entire solar system onto a new vector? Edit: I know a dragon won't affect orbital dynamics. submitted by /u/loicwg [link] [comments]

Why are plasmids used for horizontal gene transfer and not chromosomes (bacteria)? Posted: 19 Feb 2022 12:34 PM PST I was curious why bacteria use plasmids to transfer genetic material horizontally and why they don't can't transfer chromosomal DNA? Is there something inherently advantageous about having this "mobile DNA" on a plasmid versus on a chromosome? submitted by /u/Cold_Dingo3486 [link] [comments]

Is there a "frame rate" for reality? More specifically, is there a point in time where there is no motion whatsoever even at the quantum level? Posted: 19 Feb 2022 03:37 AM PST I've read that a zeptosecond is the shortest unit of time measured to this date. Does all motion cease at 0 zeptoseconds or is time like a number line with infinite numbers between each value? submitted by /u/Tin_Crow25 [link] [comments]

How does a salt scrub make the surface of a yoga mat less slippery/more grippy? Posted: 19 Feb 2022 11:25 AM PST Even though Manduka Pro series yoga mats are top rated and widely popular, many people have trouble breaking them in, complaining that the mats are too slippery. The common explanation is that the manufacturing process leaves a film on the top layer of the mat, and only through repeated use or a salt scrub can the user break down the film. (The method in brief: cover the mat with sea salt, let sit for 24 hours, wipe/scrub off, rinse, and allow to dry.) Can someone explain how this salt scrub method works? ETA: Many people who have tried the salt scrub method report that it does not work, even after repeated attempts. ETA2: Changed flair from Chemistry to Engineering. ETA3: SOLVED: Skip the salt. The film is likely the release agent used in injection moulding. Using a household degreaser (e.g. dish soap, isopropyl alcohol) should remove the film. Alternatively, try a gentle abrasive like 250-400 grit sandpaper. Finally, while I'm still waiting to hear if photodissolution has a scientific basis, all three methods here are supported by anecdotal evidence. submitted by /u/PaddyOPossum [link] [comments]

Does vasodilation cause an appreciable change in blood pressure? Posted: 19 Feb 2022 12:20 AM PST I'm a secondary school science teacher in the UK. I'm currently teaching about homeostasis and negative feedback loops (this isn't my specialism). We talked about how when you are warm your blood vessels in your skin dilate to dump heat out of your body. A student asked if this would change your blood pressure and if so, how does your body react to the change? I admitted I was stumped, the only thing I could think of was that it probably wasn't an appreciable change, and I promised I would find out the correct answer for them. EDIT: punctuation and incoherent rambling sentence. submitted by /u/Mr_Seth [link] [comments]

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