why do atoms that are closer to filling their valence shell attract electrons more strongly than atoms that need more electrons?

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• why do atoms that are closer to filling their valence shell attract electrons more strongly than atoms that need more electrons?
• How do experts come to know that the recent British strain of COVID-19 is ~ 70% more transmissible?
• What causes a battery to lose its ability to store charge? Like when your phone over time lasts for less time on a full charge
• Does the latent heat of water decrease or increase with increase in pressure?
• Why does Cherenkov radiation happen?
• Should we see a mild flu season?
• Could the SARS-CoV-2 vaccine work for SARS-CoV?
• How far from the sea do you still need to be worried about salinity for agriculture?
• What causes fluctuations in thermodynamic equilibrium?
• Will creating vaccines for the new strains of COVID be much faster?
• Did the Earth’s natural landscape in the Cretaceous period look virtually identical to today’s world with grassy plains, green forests and jungles, blue lakes and rivers? Or would it seem like an alien world to us with different size, shape and colour flora and fauna?
• How do grass-fed farm animals develop fat?
• Which organs or body parts are usually in good shape and could survive much longer when we die of “old age”?
• How does a bacterial and viral vaccine differ?
• Whatever happened to SARS-Cov - the first one?
• Where do cavefish get their vitamin D?
• Is getting vaccined against the previous SARS viruses help getting protected from covid19?
• How does tonsillectomy affect lymphocyte to neutrophil ratio?
• Does the uranium used in nuclear reactors ever decay?
• How poisonous is Wolfs Bane, and are it’s effects on the human body accurate irl when compared to its effects in Ghost of Tsushima (2020)?

why do atoms that are closer to filling their valence shell attract electrons more strongly than atoms that need more electrons? Posted: 25 Dec 2020 12:06 AM PST the only reason I can think of is more protons=stronger attraction of negatively charged electrons, but is that it or is there another reason? submitted by /u/Tachi-Roci [link] [comments]

How do experts come to know that the recent British strain of COVID-19 is ~ 70% more transmissible? Posted: 24 Dec 2020 02:34 PM PST Is it because the virus needs less of its particles to infect? Is it longer lasting in the air? What exactly makes it more transmissible and does that change the currently accepted measures (masks or distancing making less of a difference for example)? Thanks! submitted by /u/dogegodofsowow [link] [comments]

What causes a battery to lose its ability to store charge? Like when your phone over time lasts for less time on a full charge Posted: 24 Dec 2020 09:10 PM PST submitted by /u/BrownBoy- [link] [comments]

Does the latent heat of water decrease or increase with increase in pressure? Posted: 25 Dec 2020 01:07 AM PST In my textbook, it says that latent heat of water decreases with increase in pressure. My understanding, is that the amount of heat we need to supply, to convert it from liquid to vapour decreases with increase in pressure. Isn't it also true, that with a decrease in pressure, water converts more readily to steam. Which is why at higher altitudes, the boiling point is lower than 100 deg C. These seem to contradict each other and I'm somewhat confused. submitted by /u/Suki1387 [link] [comments]

Why does Cherenkov radiation happen? Posted: 24 Dec 2020 08:38 AM PST I understand that Cherenkov radiation occurs when a charged particle(usually an electron) moves faster than the speed of light in a medium(usually light water). It's similar to a sonic boom where an object moves faster than the speed of sound in air. What I don't understand is why water slows down light by a lot but only slows electrons by a relatively small amount. Say for instance you had an electron gun and a photon emitter in outer space. There's no way that the electron could ever travel faster than the photon. But somehow in water the photon is slowed down so much that it is possible for the electron to exceed its speed. Why is that? submitted by /u/Trainbus6000 [link] [comments]

Should we see a mild flu season? Posted: 24 Dec 2020 10:43 AM PST In theory, should we be seeing a lower than average amount of flu cases this year due to the enhanced social distancing, mask wearing, and sanitization? Will we actually? Why or why not? submitted by /u/sgtmjrtom [link] [comments]

Could the SARS-CoV-2 vaccine work for SARS-CoV? Posted: 24 Dec 2020 01:34 PM PST I was reading a research article about the spike protein on SARS-CoV-2 and read it was very similar to the SARS-CoV spike protein but with a higher affinity for the ACE2 receptor. Since they both target that receptor and they're similar in structure, could the vaccine work for both viruses? submitted by /u/DrRoer [link] [comments]

How far from the sea do you still need to be worried about salinity for agriculture? Posted: 24 Dec 2020 11:21 AM PST How far from the sea do you still need to be worried about salinity for agriculture? submitted by /u/2ADF379FF404DEEF [link] [comments]

What causes fluctuations in thermodynamic equilibrium? Posted: 24 Dec 2020 04:23 PM PST Why are there "random" decreases of entropy in systems already in thermodynamic equilibrium? Is there anything that causes them? Can they really lead to things like Boltzmann Brains? submitted by /u/Thr0w4w4y453 [link] [comments]

Will creating vaccines for the new strains of COVID be much faster? Posted: 24 Dec 2020 09:36 AM PST Now that the first COVID-19 vaccines were created, will the creation of vaccines for the new strains be much quicker? Do the vaccines only need a small alteration to combat a new strain? submitted by /u/saturday_lunch [link] [comments]

Did the Earth’s natural landscape in the Cretaceous period look virtually identical to today’s world with grassy plains, green forests and jungles, blue lakes and rivers? Or would it seem like an alien world to us with different size, shape and colour flora and fauna? Posted: 24 Dec 2020 09:42 AM PST submitted by /u/Velvet_frog [link] [comments]

How do grass-fed farm animals develop fat? Posted: 24 Dec 2020 05:22 PM PST Is it from glycogenesis using plant sugars? submitted by /u/zephyredx [link] [comments]

Which organs or body parts are usually in good shape and could survive much longer when we die of “old age”? Posted: 24 Dec 2020 05:42 AM PST If any. And if so, how long will they last? submitted by /u/Electrochromic_ [link] [comments]

How does a bacterial and viral vaccine differ? Posted: 24 Dec 2020 10:44 AM PST This may be dumb but I just realized that there are vaccines for bacteria and viruses. But do they work the same? Do you get a weaker version of both? I know with the new covid vaccines they taget the protein that reproduces but covid is a virus; do bacterial infections like TB, Typhoid, and Hansen's have something similar? submitted by /u/mejohn00 [link] [comments]

Whatever happened to SARS-Cov - the first one? Posted: 24 Dec 2020 12:07 PM PST SARS vaccine research was being undertaken in Singapore in 2005 by inserting Sars-Cov-1 spike proteins in microbiome bacteria. Is it possible this bacteria snuck out of the lab, secretly immunizing us to SARS-Cov-1? Is that why SARS-Cov-1 never made a comeback? https://core.ac.uk/download/pdf/48645831.pdf Why did SARS-1 disappear? submitted by /u/twohammocks [link] [comments]

Where do cavefish get their vitamin D? Posted: 24 Dec 2020 03:13 PM PST Do they make their own or what's making it for them in the food chain? submitted by /u/geopolit [link] [comments]

Is getting vaccined against the previous SARS viruses help getting protected from covid19? Posted: 24 Dec 2020 02:52 PM PST submitted by /u/arminmux [link] [comments]

How does tonsillectomy affect lymphocyte to neutrophil ratio? Posted: 24 Dec 2020 07:57 PM PST submitted by /u/inquilinekea [link] [comments]

Does the uranium used in nuclear reactors ever decay? Posted: 24 Dec 2020 09:37 AM PST Pretty self explanatory question really, I'm just wondering if through the process of it being used that it ever decays into anything during it's lifetime inside the reactor. submitted by /u/testaccount_2424 [link] [comments]

How poisonous is Wolfs Bane, and are it’s effects on the human body accurate irl when compared to its effects in Ghost of Tsushima (2020)? Posted: 24 Dec 2020 02:45 PM PST I'm the video game, Ghost of Tsushima, the main character uses a blowgun and poisonous darts (created using the plant Wolfs Bane, AKA Monkshood, as the poison) to kill his enemies. In the game, it's is demonstrated through multiple cutscenes and gameplay animations that the effect of Wolfsbane poison is immediate on the victim, inducing uncontrollable vomiting of blood, as well as choking on their own blood. Is Wolfs Bane as dangerous and poisonous irl as it is portrayed in the game? What would the effects be irl if a human were to be shot with a dart contaminated in this poison? submitted by /u/Wicked_Potato-75 [link] [comments]

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Can a person test negative for COVID, but still be contagious? (Assuming that person is in the process of being COVID positive)

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• Can a person test negative for COVID, but still be contagious? (Assuming that person is in the process of being COVID positive)
• Post Covid Mucormycosis is a growing concern in India. How common is it and where does it come from?
• Do some Grand Unified Theories predict no Proton decay?
• Is it possible that COVID-19 could mutate to become non-functional?
• How did the vaccine creators know which mRNA subsequence to choose from the genome of SARS-CoV-2?
• How do fish survive in frozen lakes?
• Why don't we always get immunity to diseases that we have had once before?
• How does mercury get into the ocean to accumulate in sharks and other large fish?
• Why does metal have a smell?
• How Does An Axial Compressor Work?
• Is Saltation what causes ripples in both sand and clouds?
• If an object is in an elliptical orbit around a black hole with an apogee very close to the event horizon, would the object appear to pause to an outside observer for an extended period of time as it orbited?
• Why is the speed of sound so significant in fluid flow? Is that only to determine if the flow is compressible or not?
• What happens to Covid-19 in an exposed individual that didn't reach enough viral load to cause illness??
• For people with the photic sneeze reflex, why doesn't pupil dilation trigger sneezing fits?
• Can anyone help me understand the 2D nature of Anyons?
• Why do we need bandwidth of a certain size when transmitting a signal in wireless network?
• What are complementary flavors (i.e. chocolate/orange)? Is it a biological or chemical reason why we like them?
• How closely related are the two bird groups, palaeognathae and neognathae, to each other?
• Is there any evidence of large damage or disturbances in the earths crust opposite (the anticenter) of the Chixulub impact that caused the K/T extinctions?
• Now that we have shown the mRNA vaccines work, and have one specifically for a coronavirus, how fast could we likely create a vaccine for a future coronavirus pandemic?

Can a person test negative for COVID, but still be contagious? (Assuming that person is in the process of being COVID positive) Posted: 24 Dec 2020 03:24 AM PST submitted by /u/whoneedsusernames [link] [comments]

Post Covid Mucormycosis is a growing concern in India. How common is it and where does it come from? Posted: 23 Dec 2020 10:55 AM PST https://m.hindustantimes.com/india-news/what-is-mucormycosis-a-black-fungal-disease-being-linked-with-covid-19/story-mNTtFUEGb23yKQ3gTxGmpI_amp.html Just a simple question, further details about some cases in the link above. This condition seems a bit dangerous to just suddenly come out of nowhere, and is the first time I'm hearing about it. EDIT: https://www.ndtv.com/india-news/gujarat-issues-health-advisory-on-mucormycosis-fungal-infection-with-50-mortality-rate-2342288 Another news article which claims experts have said mostly heavily immunocompromised like cancer patients, organ transplant patients and diabetics are in danger of infection. submitted by /u/tkudva [link] [comments]

Do some Grand Unified Theories predict no Proton decay? Posted: 24 Dec 2020 04:47 AM PST So, possibly the best way to test a grand unified theory is to look for proton decay, in which the grand unified strong force re-emerges as an X-boson and turns a proton into a pion (which turns into 2 photons soon after) and positron, however, since there seems to be no evidence for a grand unified force that would force the proton to decay, are there any grand unified theories that say protons won't decay? Or do all of them predict proton decay, and if proton decay as a whole is ruled out (which seems to be the case with current evidence), no grand unified theory is right? submitted by /u/Birds_106 [link] [comments]

Is it possible that COVID-19 could mutate to become non-functional? Posted: 24 Dec 2020 06:19 AM PST Sorry if this has been asked before or if it's a stupid question. But I remember either hearing or reading somewhere that viruses can mutate to become non-functional. Could this ever happen with the Sars-Cov-2 virus? If so, would that mean that it couldn't infect people anymore & the pandemic would just be over? Also, is there anything that determines whether or not a virus will mutate to become non-functional, or does it happen randomly? Thanks in advance, looking forward to hearing the responses :) submitted by /u/chillp0tle [link] [comments]

How did the vaccine creators know which mRNA subsequence to choose from the genome of SARS-CoV-2? Posted: 23 Dec 2020 04:58 PM PST I understand the creators of the mRNA vaccine took the DNA genomic sequence of SARS-CoV-2, found the subsequence that referred to the spike protein, and are now mass producing that sequence as mRNA. But how did they know which subsequence referred to the spike protein and not some other irrelevant part of the virus? submitted by /u/BSTRhino [link] [comments]

How do fish survive in frozen lakes? Posted: 23 Dec 2020 08:52 PM PST When lakes freeze over during winter. Only the surface freezes and apparently the fish etc survive in the water below the surface. How is the oxygen in the water replenished through the ice? Wont the fish use up all the oxygen and then suffocate to death submitted by /u/powderUser [link] [comments]

Why don't we always get immunity to diseases that we have had once before? Posted: 23 Dec 2020 06:25 PM PST submitted by /u/lidsil [link] [comments]

How does mercury get into the ocean to accumulate in sharks and other large fish? Posted: 23 Dec 2020 11:21 PM PST submitted by /u/unnamed887 [link] [comments]

Why does metal have a smell? Posted: 23 Dec 2020 11:15 AM PST submitted by /u/tunablepizza [link] [comments]

How Does An Axial Compressor Work? Posted: 23 Dec 2020 08:18 PM PST Hi r/askscience! History major here with a physics question. After watching a number of videos from the "primitive technology" genre on youtube, I've become fascinated with the origins of iron smelting and would eventually like to attempt to smelt and forge my own wrought iron using locally sourced materials like some of these youtubers have done. For my bellows, I was hoping to make a primitive blast furnace, essentially, using a waterwheel powering a primitive wooden axial compressor to supply the air needed for smelting. After trying to learn more about their workings, I came across this gif on the wikipedia page for such compressors and was puzzled when I saw that the blades/turbines that spin alternate with ones that remain stationary. So my questions are the following: Why do some blades in an axial compressor (or a jet engine, for that matter) rotate while others do not? My headcannon says all parts that look like they spin in a jet engine do spin, but evidently this was not the case and I know little of aeronautics. For my materials scientists, would an amateurly crafted axial compressor be a good bellows as opposed to traditional methods such as hand-pumped leather bellows or flap/push bellows as used in east Asia and elsewhere? Performance to an actual jet engine/modern air compressors is not anticipated or expected, only enough airflow to smelt relatively small quantities of iron ore. I settled on a jet engine-esque design because keeping rotary motion from a waterwheel and maintaining that motion in the bellows strikes me as an efficient use of energy, but I could be wrong. submitted by /u/_myst [link] [comments]

Is Saltation what causes ripples in both sand and clouds? Posted: 24 Dec 2020 04:02 AM PST I've done some cursory googling. It seems rippling in sand is called saltation. But I can't find anything that connects saltation to the phenomenon of ripples underwater and also ripples in clouds. To me they all seem connected, and saltation does define itself as a fluid moving over a substance (such as sand) so presumably that definition also applies for underwater and in the clouds. Just curious if anyone has seen these various appearances of rippling connected in any way? pictures: https://imgur.com/a/DJPI6fx submitted by /u/theforester000 [link] [comments]

If an object is in an elliptical orbit around a black hole with an apogee very close to the event horizon, would the object appear to pause to an outside observer for an extended period of time as it orbited? Posted: 23 Dec 2020 07:58 AM PST I'm really interested by time dilation effects (a la interstellar) but I haven't been able to wrap my head around understanding how much effective time dilation someone could experience. It occurs to me that if you were in a ship with an elliptical orbit and you set your apogee very near the event horizon you might experience significant time dilation as your swing around the black hole, but I haven't been able to ascertain the quantity of time dilation (eg a minute here is seventy years) one could experience with each orbit. submitted by /u/thiosk [link] [comments]

Why is the speed of sound so significant in fluid flow? Is that only to determine if the flow is compressible or not? Posted: 23 Dec 2020 09:44 PM PST submitted by /u/nabimchord [link] [comments]

What happens to Covid-19 in an exposed individual that didn't reach enough viral load to cause illness?? Posted: 23 Dec 2020 08:53 AM PST There are so many discussions on preventative measures to minimize our exposure to the virus--what exactly happens if some virus did make it through your system, but the viral load isn't sufficient to make you sick? Do they stay in your body? does your body destroy the little amount that's there? how frequent do multiple exposures (for whatever reasons...) have to happen for the cumulative effect to be there? submitted by /u/elephantwonderland [link] [comments]

For people with the photic sneeze reflex, why doesn't pupil dilation trigger sneezing fits? Posted: 23 Dec 2020 10:50 AM PST Another post about sneezes reminded me of this: Like a lot of other folks, I sneeze when exposed to bright sunlight (or even a bright incandescent bulb -- not fluorescent, though). Yet when I have my pupils dilated at my annual eye exam, I don't burst into sneezes as soon as I leave office, like I would expect to. Any idea why? submitted by /u/arglebargle_IV [link] [comments]

Can anyone help me understand the 2D nature of Anyons? Posted: 23 Dec 2020 01:46 PM PST I came across this article today, but it doesn't really explain anything beyond 'these exist and this is how they kind of interact.' But what exactly is a 2D system? I feel like that might be describing something more mathematical than physical, but.. Edit (hope it's allowed): I should have specified that I am not a physicist and I would appreciate a really simplified answer, eli5-style, if possible.. thank you! submitted by /u/ninthtale [link] [comments]

Why do we need bandwidth of a certain size when transmitting a signal in wireless network? Posted: 23 Dec 2020 10:09 AM PST I come from a CS background so my EE and signal theory is not that great. So I was studying wireless networks (let's take the old 802.11b standard) where (for ex) we have a bandwidth of 20MHz per channel and a carrier signal at 2.4GHz more or less depending on the channel. Let's imagine a basic scenario where we have a simple modulation where one high frequency is a 1 bit and a low frequency withing the bandwidth is a 0. My question is: why do we need all the 20MHz? Will we actually utilize them just changing between these 2 frequencies? And if we take more advanced modulations like amplitude or phase, then do we still need to utilize all those 20MHz just to change amplitude? Shouldn't changing power change the amplitude? How are frequencies related to changing amplitude? Moreover I remember my professor of an unrelated subject saying that "a rule of thumb without any fancy modulation or anything is that 1 Hz = 1 bit transmitted" but still this implies that we utilize all the bandwidth even if we are just using 2 frequencies (1 high and 0 low). How does that work? Thanks! submitted by /u/Impossible_Radio9032 [link] [comments]

What are complementary flavors (i.e. chocolate/orange)? Is it a biological or chemical reason why we like them? Posted: 23 Dec 2020 07:29 AM PST submitted by /u/muymalo22 [link] [comments]

How closely related are the two bird groups, palaeognathae and neognathae, to each other? Posted: 23 Dec 2020 08:16 AM PST I read in a comment that they're not actually all that closely related, having diverged from each other by 100 million years. If by stroke of faith that all of the palaeognathus died out during the kpg extinction event, we wouldn't even consider them true birds but close bird relatives. submitted by /u/uncertein_heritage [link] [comments]

Is there any evidence of large damage or disturbances in the earths crust opposite (the anticenter) of the Chixulub impact that caused the K/T extinctions? Posted: 23 Dec 2020 07:24 AM PST Was there damage caused by focused reverberations of the impact? I understand that the crust is variable in composition & thickness so any effects may not be found at the exact anticenter, but were there any huge and or still visible disruptions, as in volcanoes or earthquakes, focused on basically the opposite side of the globe from the impact? submitted by /u/Hanginon [link] [comments]

Now that we have shown the mRNA vaccines work, and have one specifically for a coronavirus, how fast could we likely create a vaccine for a future coronavirus pandemic? Posted: 23 Dec 2020 08:59 AM PST And how fast could we do it if we used challenge trials? What is the fastest-possible timeline the next time around? submitted by /u/Tristan_Cleveland [link] [comments]

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Why don't we ever sneeze while sleeping?

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• Why don't we ever sneeze while sleeping?
• Coronavirus Vaccine and Autoimmunity? Can the new vaccine cause autoimmune disease?
• If a vaccine causes a stronger immune response, why does it not increase the risk of cytokine storms?
• Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
• How long does it take our lungs to absorb the oxygen from a breath?
• Since at the end of the Krebs cycle Fat turns into CO2 and Water, are you less likely to be dehydrated in Ketosis?
• Do people who are tone-deaf actually hear the song differently than those who aren’t? and, therefore, sing the song as they hear it? If not, why is it so difficult for them to mimic notes in music?
• Can we predict volcanic eruptions? If so, how much time in advance can we predict the eruption?
• Will it make any difference if I got exposed with a small amount of covid compared to high amount?
• Do countries with more gendered language than English have a more progressive view of gender politics?
• How do I estimate both bounds of a uniform distribution?
• What prevents all dense stars from collapsing into black holes?
• Does applying pressure on a small wound (paper cut) help it heal faster?
• What is the Blue Ocean event?

Why don't we ever sneeze while sleeping? Posted: 22 Dec 2020 06:29 PM PST submitted by /u/eniparxi [link] [comments]

Coronavirus Vaccine and Autoimmunity? Can the new vaccine cause autoimmune disease? Posted: 23 Dec 2020 05:00 AM PST I read that the covid vaccine is probably safe in people with autoimmune disease, but also that there is a chance for the vaccine to active your immune system and possibly cause autoimmunity. How have the studies shown so far that it does, or doesn't do this? submitted by /u/MotorcycleDood [link] [comments]

If a vaccine causes a stronger immune response, why does it not increase the risk of cytokine storms? Posted: 23 Dec 2020 07:14 AM PST Prompted by covid19, but the question is general enough to apply to other diseases. Vaccines prevent diseases by preparing our immune systems, which decreases risk of disease. However, some diseases are most dangerous through an overreaction of the immune system called a cytokine storm. One would think that preparing the immune system would cause an increased risk of cytokine storms. Clearly, this is not a large enough problem to not vaccinate people. How come? submitted by /u/Magisidae [link] [comments]

Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 23 Dec 2020 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! submitted by /u/AutoModerator [link] [comments]

How long does it take our lungs to absorb the oxygen from a breath? Posted: 22 Dec 2020 08:46 AM PST To clarify: -when we breath we take atmospheric air (21% oxygen) in, and exhale air around 15-17% O2. -I know that the diffusion of oxygen in the alveoli saturates the red cells in the capillaries in less than 0.25 seconds (And that this is impacted by PO2 gradient, membrane thickness, surface area and capillary transit time) -I am also aware that due to the residual volume in our lungs mixing with the air we inhale the air in our lungs is actually always lower than 21% oxygen atmosphere I just want to know how quickly the inhaled air loses its oxygen. Does it drop to 15% oxygen in a few seconds? Faster? How much of the 6% O2 drop happened in the first second? Pretty much if I breathed in and then exhaled as fast as I could would the expelled air have more than 15-17% oxygen? Since it spent so little time in the lungs? What if I took a bigger breath? It may seem like a weird aspect to focus on (how fast is the AIR is deoxygenated, as opposed to how fast is our blood oxygenates) but I'm thinking in terms of CPR rescue breaths. I've seen people argue that by breathing out fast you can give the patient almost 21% oxygen air. This got me wondering if that is true, or how quickly the inhaled air loses its oxygen. submitted by /u/IronyDeficientAnemia [link] [comments]

Since at the end of the Krebs cycle Fat turns into CO2 and Water, are you less likely to be dehydrated in Ketosis? Posted: 23 Dec 2020 07:11 AM PST submitted by /u/TheBloodEagleX [link] [comments]

Do people who are tone-deaf actually hear the song differently than those who aren’t? and, therefore, sing the song as they hear it? If not, why is it so difficult for them to mimic notes in music? Posted: 23 Dec 2020 06:50 AM PST submitted by /u/NotGonna_Lie2U [link] [comments]

Can we predict volcanic eruptions? If so, how much time in advance can we predict the eruption? Posted: 23 Dec 2020 05:48 AM PST For example, Etna volcano is a popular attraction for hikers. How can they prevent to be caught unprepared by an eruption while hiking? Are there any sort of measurements that they track, or do they just hope that it won't actually happen? submitted by /u/stochastic_racoon403 [link] [comments]

Will it make any difference if I got exposed with a small amount of covid compared to high amount? Posted: 23 Dec 2020 07:14 AM PST submitted by /u/derpbull [link] [comments]

Do countries with more gendered language than English have a more progressive view of gender politics? Posted: 23 Dec 2020 03:58 AM PST It seems that a society more used to assigning gender independent of biological sex may have an easier time accepting that gender is a social construct? Would two countries which are similar on other progressive issues differ on gender issues due to linguistic differences on gender? submitted by /u/ikkleste [link] [comments]

How do I estimate both bounds of a uniform distribution? Posted: 22 Dec 2020 10:46 AM PST As the German Tank Problem teaches us, you can estimate the upper bound b of a Uniform Distribution on (0, b) from N samples by simply taking the maximum observed value M. But that's a biased estimator, and an unbiased estimator would be b = M * (N+1)/N. That's all well and good when we know that the lower bound of the distribution is fixed at 0. But what happens when that's also a parameter that we wish to estimate? I.e., we have a Uniform Distrbution (a, b), and we wish to estimate both a and b based on N samples. I'm assuming that the biased estimators are the min and max samples, respectively. But how does the bias correction work? Does it get cut in half, doubled, neither? Is there an implicit length parameter (i.e. b-a) which vanishes when a=0 but now needs to re-appear? I tried searching, but everything I can find goes back to the German Tank problem where the lower bound is fixed at 0. submitted by /u/throwaway_lmkg [link] [comments]

What prevents all dense stars from collapsing into black holes? Posted: 22 Dec 2020 05:54 PM PST I'm just starting to try and learn more about astronomy and physics, and black holes are super interesting to me. From my understanding, it seems that stars with large enough mass collapse under their own gravity when they die out as there isn't enough energy to keep it stable, and as the mass crunches together from its own gravity it becomes ever more dense and thus, creating ever stronger gravity bringing it more mass until it results in a singularity. If I am not fundamentally misunderstanding this (which I probably am), why doesn't every large star just collapse into a black hole? If gravity brings all of its mass down into the center, thus making it more dense and thus having a stronger gravity to bring in even more mass, wouldn't anything with a sufficient enough starting mass collapse into singularity? submitted by /u/xCosmicChaosx [link] [comments]

Does applying pressure on a small wound (paper cut) help it heal faster? Posted: 22 Dec 2020 05:02 PM PST One one hand I think it condenses the cells for faster travel of white blood cells and those clotting proteins, helps seal the affected area, but on the other hand it restricts blood flow. If there is a significant difference between applying pressure and not, is there a combination of both (for example, 2 minute pressure and 3 minute release) that optimizes wound regeneration? submitted by /u/Duke8x [link] [comments]

What is the Blue Ocean event? Posted: 22 Dec 2020 04:43 PM PST I can't find any reputable sources on the blue ocean event, or if it's even a legit scientific theory. I know it has to do with no more North Pole ice in the summer, and that many think it will occur by 2022 and cause world ending feedback loops. If it's occurring in 2 years, why do scientists act like we still have a chance of surviving as a species? I apologize if this question is not phrased in a scientific manner, I've never posted on this sub before. Thanks. submitted by /u/MaryJaneCrunch [link] [comments]

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