If Mars experiences global sandstorms lasting months, why isn't the planet eroded clean of surface features?

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• If Mars experiences global sandstorms lasting months, why isn't the planet eroded clean of surface features?
• Build up immunity for allergies?
• Can you catch 2 strains of covid at the same time?
• Why are mRNA vaccines cheaper to produce than protein-based vaccines?
• What do tumors and cancers actually do thats so deadly?
• How does The Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) used on the Perseverance Rover work?
• Will viruses inactivated with β-Propiolactone set off PCR tests?
• How does oxygen supply work in a submarine ?
• What kind of information crosses the Corpus Collosum between both halves of the brain?
• How are coral reefs made?
• Is the temperature of the core of a planet dependent on the composition of the planet to a noticeable degree?
• Can a virus or a piece of code be sent to a phone and executed via a phonecall?
• If it takes a whole rocket full of fuel to get astronauts into space, how do they return from the moon (or in the future, other planets) with a much smaller spacecraft?
• How does our body know when to stop producing plasma cells and memory cells after vaccination?
• What do antibodies look like under microscope?
• Why isn’t mars extremely hot?
• How big are people's teeth?
• Is it theoretically possible to create a universal vaccine against all coronaviruses?
• SHA 256 and repeat outputs?

If Mars experiences global sandstorms lasting months, why isn't the planet eroded clean of surface features? Posted: 23 Apr 2021 07:09 AM PDT Wouldn't features such as craters, rift valleys, and escarpments be eroded away? There are still an abundance of ancient craters visible on the surface despite this, why? submitted by /u/stinkbeast666 [link] [comments]

Build up immunity for allergies? Posted: 23 Apr 2021 01:55 AM PDT So this question just popped up on my head, If you keep getting exposed to something you're allergic to, for example a cat, or peanuts. Would you eventually build up immunity? submitted by /u/Washmachine_ [link] [comments]

Can you catch 2 strains of covid at the same time? Posted: 22 Apr 2021 10:39 PM PDT submitted by /u/justafang [link] [comments]

Why are mRNA vaccines cheaper to produce than protein-based vaccines? Posted: 22 Apr 2021 09:59 PM PDT From what I understand, all current COVID vaccines are mRNA based vaccines. My doctor explained to me why these are cheaper than protein-based ones, but I forgot. :( submitted by /u/Nahughes121989 [link] [comments]

What do tumors and cancers actually do thats so deadly? Posted: 22 Apr 2021 06:23 PM PDT What is different from like a cyst growing in the same place? submitted by /u/HenchMidget [link] [comments]

How does The Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) used on the Perseverance Rover work? Posted: 22 Apr 2021 06:43 PM PDT submitted by /u/Godzilla-3301 [link] [comments]

Will viruses inactivated with β-Propiolactone set off PCR tests? Posted: 22 Apr 2021 11:57 PM PDT Is there any research that shows whether or not β-Propiolactone inactivation of RNA may still allow PCR tests to detect the particular genetic sequences they're looking for? There is a paper here that discusses four inactivation methods but none of them mention beta-Propiolactone. https://www.sciencedirect.com/science/article/abs/pii/S0168170220302070 submitted by /u/rabidsoggymoose [link] [comments]

How does oxygen supply work in a submarine ? Posted: 23 Apr 2021 02:08 AM PDT Missing Indonesian submarine has 72 hours of oxygen left, navy says https://www.bbc.com/news/world-asia-56829278 ​ Do they use oxygen tanks ? How will the release of additional air without a corresponding removal affect the air pressure inside ? How will that affect normal breathing ? submitted by /u/WestCost2 [link] [comments]

What kind of information crosses the Corpus Collosum between both halves of the brain? Posted: 22 Apr 2021 06:07 PM PDT submitted by /u/strategosInfinitum [link] [comments]

How are coral reefs made? Posted: 22 Apr 2021 05:51 PM PDT Can you synthesize them in captivity and bring them into the ocean? submitted by /u/Inaerius [link] [comments]

Is the temperature of the core of a planet dependent on the composition of the planet to a noticeable degree? Posted: 22 Apr 2021 07:33 PM PDT submitted by /u/SoapyBoatte [link] [comments]

Can a virus or a piece of code be sent to a phone and executed via a phonecall? Posted: 22 Apr 2021 06:39 PM PDT I know that sound during a normal phonecall is made up of zeroes and ones just like any other piece of information. So could you send a file using phonecalls? submitted by /u/sagitel [link] [comments]

If it takes a whole rocket full of fuel to get astronauts into space, how do they return from the moon (or in the future, other planets) with a much smaller spacecraft? Posted: 22 Apr 2021 06:36 PM PDT I know that spacecraft need to have multiple stage separations because of the vast amount of fuel used to get out of earth's gravity, but when we see what the Apollo astronauts landed on the moon on, it doesn't look big enough to hold much fuel at all. I know the gravity on the moon is much lower but I would have thought they would still need a huge amount. Similarly, in "accurate" films such as The Martian, the spacecraft they leave Mars on are much smaller too. submitted by /u/Jopkins [link] [comments]

How does our body know when to stop producing plasma cells and memory cells after vaccination? Posted: 22 Apr 2021 08:40 PM PDT I keep reading that it takes our body around 2 weeks to ramp up immunity post vaccination but I can't seem to find any info on what makes it stop making the specialized immune cells. Is it just time dependent? Or possibly once some number/threshold has been reached? For example, would somebody with a weaker immune system be able to eventually, given more time, produce just as many immune cells and antibodies as somebody with a stronger immune system? Or is it basically just a race to see how many you can produce within a set time interval (like 2 weeks)? TIA! submitted by /u/Pho20 [link] [comments]

What do antibodies look like under microscope? Posted: 22 Apr 2021 03:29 PM PDT submitted by /u/corona_coaster [link] [comments]

Why isn’t mars extremely hot? Posted: 22 Apr 2021 12:16 PM PDT I just got finished reading How to avoid a climate disaster by Bill Gates and learned that the reason our climate is heating up is because CO2 being trapped in the atmosphere causes energy from the sun to stay in our atmosphere. But Mars' atmosphere is something like 96% CO2 and the temperature average is around -80° F. Why doesn't energy from the sun get trapped inside the atmosphere of Mars, thus making it hotter? submitted by /u/darkshadowtrail [link] [comments]

How big are people's teeth? Posted: 22 Apr 2021 11:00 AM PDT Like are they generally uniform person to person? Proportional to bone size? Something else entirely? submitted by /u/Muttolomew [link] [comments]

Is it theoretically possible to create a universal vaccine against all coronaviruses? Posted: 22 Apr 2021 09:32 AM PDT As the title suggests, will it be scientifically possible someday to have a vaccine that can protect against all forms of coronaviruses and their mutations? Is there an underlying similarity in the viruses that we know about? Or is there enough of a difference that our immune system is forced to react differently to each? submitted by /u/ryja8610 [link] [comments]

SHA 256 and repeat outputs? Posted: 22 Apr 2021 02:07 PM PDT Since SHA 256 is not a 1-1 function, and the domain is larger than the range, wouldn't it be possible to have multiple different inputs to create the same output? If so does this pose a security risk? submitted by /u/ljz3 [link] [comments]

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India is now experiencing double and triple mutant COVID-19. What are they? Will our vaccines AstraZeneca, Pfizer work against them?

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• India is now experiencing double and triple mutant COVID-19. What are they? Will our vaccines AstraZeneca, Pfizer work against them?
• Any news from Tinnitus Treatment?
• Canada decided to delay second doses by up to four months due to lack of supply. Will this time frame leave us less protected?
• Why are there different tresholds to reach herd immunity for different diseases?
• What determines a greenhouse gas?
• Does the false covid-19 PCR false positive % referred to by Surkova & Nikolayevskyy in The Lancet mean % of all tests, or % of positive tests?
• Since studies say our brains are not done fully developing until 25 years old, does alcohol and/or marijuana consumption before this age cause impairment?
• How do vaccination rates affect reproduction rates?
• Was there a tendency for someone not to be immunized by more than one type of vaccine?
• Do hive insects (ants, bees, etc.) send out “search/rescue parties” to look for missing hive members?
• Why does it take 2 weeks to get immunity after 2nd covid vaccine?
• How does the immune system differentiate between mRNA vaccine protein products and proteins that would be produced normally?
• What is the technology behind credit card chips such that companies can be so sure that fraud won't happen if the card is in your possession when the chip is used (but apparently it still does)?
• Is the Size Variation Found Among Humans Typical for Mammals, or is it in Some Way Unique to Us?
• I read an article recently that stated that the reason humans are more intelligent than animals was because the human hippocampus stores memories in a different way to animals. Is this true?
• How does our body make stomach acid?
• Why does an open cut sting when alcohol is applied to it?
• Do we see writing systems impact spoken syntax?
• Does space junk orbit earth the same way we orbit the sun, or does it travel in all directions including around earth's polls?
• What is it about sleeping that builds muscle memory?
• If PTSD is said to physically change the brain do we know how C-PTSD physically alters the brain?
• Does moisture/humidity increase sense of smell?

India is now experiencing double and triple mutant COVID-19. What are they? Will our vaccines AstraZeneca, Pfizer work against them? Posted: 21 Apr 2021 09:22 AM PDT submitted by /u/spez666 [link] [comments]

Any news from Tinnitus Treatment? Posted: 22 Apr 2021 08:34 AM PDT Is there any progress in tinnitus treatment? I have seen some 10 year old posts here talking about possible cures. The post was archived so I couldn't write on it. I'd like to know what has changed so far in 10 years. submitted by /u/SpookyBasagna [link] [comments]

Canada decided to delay second doses by up to four months due to lack of supply. Will this time frame leave us less protected? Posted: 21 Apr 2021 12:18 PM PDT submitted by /u/sohlasystem [link] [comments]

Why are there different tresholds to reach herd immunity for different diseases? Posted: 22 Apr 2021 02:14 AM PDT I thought it was a quantitative concept, applicable for all kind of diseases, as numbers do not differentiate between them. Why is it for Covid considered to be ~70% but for measles ~90%? Thank you. submitted by /u/pokhuist [link] [comments]

What determines a greenhouse gas? Posted: 22 Apr 2021 12:12 AM PDT Part of my university chem course goes over gases. I understand how polarity and the vibrations of the molecule determine if the molecule is a greenhouse gas. The one thing I do not understand is how methane is a greenhouse gas - its a non-polar molecule and therefore will not have any change in dipole during vibrations so how is it infrared active and a greenhouse gas?? submitted by /u/Ilovecheesecake16 [link] [comments]

Does the false covid-19 PCR false positive % referred to by Surkova & Nikolayevskyy in The Lancet mean % of all tests, or % of positive tests? Posted: 22 Apr 2021 01:47 AM PDT In False-positive COVID-19 results: hidden problems and costs30453-7/fulltext) it is said: ​ The current rate of operational false-positive swab tests in the UK is unknown; preliminary estimates show it could be somewhere between 0·8% and 4·0% My questions: ​ Are there any more accurate estimates or research done on the real false positive rate than what Surkova & Nikolayevskyy are referring to? Is Surkova & Nikolayevskyy referring to a percentage of total tests done, or a percentage of positive tests? To clarify. Let us, for the sake of example, say that the false positive rate they are talking about is 1%, and one day we test 100.000 people, and that we get 5000 positive results.. Will that mean that: A: 1% of the 100.000 are false positives, therefore there are 1000 false positives? or that B: 1% of the 5000 that tested positive are false positives. Therefore, 50 are false positives? submitted by /u/Fiksdal [link] [comments]

Since studies say our brains are not done fully developing until 25 years old, does alcohol and/or marijuana consumption before this age cause impairment? Posted: 21 Apr 2021 03:21 PM PDT submitted by /u/Johnnyb186 [link] [comments]

How do vaccination rates affect reproduction rates? Posted: 22 Apr 2021 02:16 AM PDT Ha, I hope I'm not the only one who is still confused by corona. I've read a few articles about "herd immunity" and the vaccination levels required for that. But it seems to me that that current transitional stage of many countries also makes the reproduction factor R rather than full herd immunity relevant. Say you have a country with R 1.1 with no vaccinations and the numbers are therefore increasing. If 25% of the population are vaccinated, does this reduce R below R 1 and therefore leads to falling infection numbers (all other things being equal)? Are there enough data to model these relations yet? Thanks :) submitted by /u/DrFramboise [link] [comments]

Was there a tendency for someone not to be immunized by more than one type of vaccine? Posted: 22 Apr 2021 04:41 AM PDT Vaccines are an effective method of preventing disease because a considerable portion of people are immune after taking it. But that does not happen to everyone. Would there be a study to show if there would be a tendency for someone who was not immunized by one particular vaccine to not be immunized with another vaccine? Something like vaccines don't work on that person? Would there be any factors for this to happen, if there is one? submitted by /u/DELAIZ [link] [comments]

Do hive insects (ants, bees, etc.) send out “search/rescue parties” to look for missing hive members? Posted: 21 Apr 2021 11:34 AM PDT Do bees and ants ever send out groups of hive members to look for other hive members that haven't come back or have gone missing? Like if I kill an ant in my kitchen, will more ants come looking for that ant? submitted by /u/rklab [link] [comments]

Why does it take 2 weeks to get immunity after 2nd covid vaccine? Posted: 21 Apr 2021 10:05 AM PDT Typically people have mild symptoms after getting the 2nd covid vaccine and recover after about a 24 hours. Why does it take 2 weeks before you have immunity rather than 24 hours? Hasn't your body already fought off the virus when your symptoms go away? submitted by /u/coughingzebra [link] [comments]

How does the immune system differentiate between mRNA vaccine protein products and proteins that would be produced normally? Posted: 21 Apr 2021 02:26 PM PDT The body is responsible for making thousands of different types of proteins, not a single one of which (normally) triggers an immune response. So, how does the immune system recognize one specific new type of protein that is made by the body's cells when instructed by mRNA vaccines? Additionally, why is this effect not seen in genetically modified animals that are modified to express the Green Fluorescent Protein (GFP) used in genetics and tissue studies, since that is also a foreign protein that the body is instructed to make? submitted by /u/Snikerdoodlz [link] [comments]

What is the technology behind credit card chips such that companies can be so sure that fraud won't happen if the card is in your possession when the chip is used (but apparently it still does)? Posted: 21 Apr 2021 03:48 PM PDT I heard that chips were meant to make credit cards more secure. But then I just read that if a chip is used for a fraudulent credit card transaction and you say the card was with you at the time, the credit company will say it can't be fraud. What's so special about these chips that companies can be so confident it's not fraud, while at the same time apparently remaining vulnerable to fraud? (Not sure about the flair sorry) Edit: this is the post that made me wonder these things. So many commenters saying they experienced fraud on a chipped card only to be dismissed by the company, so i wondered about the tech in question. submitted by /u/smellygymbag [link] [comments]

Is the Size Variation Found Among Humans Typical for Mammals, or is it in Some Way Unique to Us? Posted: 21 Apr 2021 03:42 PM PDT Hello everyone. My question of the day: Humans seem to come in all kinds of lengths, between about 1.40m to 1.80m for females, and between about 1.60m to 2.00m tall for males, with (extreme) outliers on either end of that spectrum. That is about a 25-30% difference in height between the shortest and longest "typical" length among humans (again, not counting people who are outliers for various reasons). Do other mammals also display a similar internal length diversity and variation in size, or are humans unusual for having a particularly large (or small) variation in length? I'm mostly looking for comparisons with non-domesticated animals since we humans have seriously affected the size of certain domesticates (such as dogs). submitted by /u/Skogsmard [link] [comments]

I read an article recently that stated that the reason humans are more intelligent than animals was because the human hippocampus stores memories in a different way to animals. Is this true? Posted: 21 Apr 2021 03:41 PM PDT The article: https://www.sciencedaily.com/releases/2020/11/201105113006.htm How accurate is this? submitted by /u/mjdaniell [link] [comments]

How does our body make stomach acid? Posted: 21 Apr 2021 09:26 AM PDT Basically the title. I know our stomach needs to produce mucus to prevent the acid from eating us, bit where does the acid come from? Is it produced in the stomach by mixing two other chemicals/materials? What is it's chemical components and how do we get them? submitted by /u/JellyWaffles [link] [comments]

Why does an open cut sting when alcohol is applied to it? Posted: 21 Apr 2021 01:10 PM PDT I was wiping my hands with hand sanitizer and forgot that I'd gotten a small cut on one of my fingers earlier that day. As I was wiping, that area started to burn/sting pretty badly. This has happened to me before, but I'm curious why it occurs. Thanks! submitted by /u/doubtfulcookie [link] [comments]

Do we see writing systems impact spoken syntax? Posted: 21 Apr 2021 01:49 PM PDT Do we see any impact from writing systems on the syntax of spoken language? My understanding is that cultures often have to adapt foreign writing systems to suit their language, like in Japanese (ie hirigana etc) . Do we see changes over time to spoken syntax when a culture adopts a writing system? And are languages with more native writing systems influenced by the evolution of their written forms? submitted by /u/TacSponge [link] [comments]

Does space junk orbit earth the same way we orbit the sun, or does it travel in all directions including around earth's polls? Posted: 21 Apr 2021 03:14 PM PDT Title asks it all submitted by /u/cartern [link] [comments]

What is it about sleeping that builds muscle memory? Posted: 21 Apr 2021 08:39 AM PDT I've noticed when I'm practicing something on the guitar, if i do it for an hour or two that day, i will see very little almost no improvement in that same day, but when i go to sleep and wake up the next day it's almost like i got exponentially better over nigh. Yesterday i decided to learn some csrdistry tricks, and same thing, one handed cuts and things like that i could barely get without dropping cards, this morning i wake up and it's like all the practice from yesterday hit me simultaneously this morning. What happens while you sleep that your brain is like "okay tomorrow we got this"?? Idk what to flair this, i guess psychology? Or maybe biology? submitted by /u/miIksfavoritecookie [link] [comments]

If PTSD is said to physically change the brain do we know how C-PTSD physically alters the brain? Posted: 21 Apr 2021 07:55 AM PDT Questions in the title. Simply put I have been wondering how C-PTSD or Complex post tramautic disorder physically impacts the brain. I know PTSD enlarges the amygdala but PTSD revolves around one trauma. Whereas CPTSD is long continual trauma so if one traumatic event can change the brain I imagine a whole third or more of your life filled with trauma might as well. submitted by /u/headwall53 [link] [comments]

Does moisture/humidity increase sense of smell? Posted: 21 Apr 2021 12:06 PM PDT The strong smells of swamps, perfume, the ocean.... got me thinking that moisture/wetness seems to correlate with strong smells. Also, once things get wet, their smell gets stronger: wet dog, wet grass, etc... This got me wondering if something about the way we perceive smells has to do with moisture? Does humid air transfer scents to our noses better? Do the hairs in our nose trap small water molecules and transfer whatever triggers our sense of smell? submitted by /u/JumpingOnTheWagon [link] [comments]

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AskScience AMA Series: We're scientists and researchers with Rainforest Partnership, an NGO focused on creating impact and progress for tropical rainforests. AUA!

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• AskScience AMA Series: We're scientists and researchers with Rainforest Partnership, an NGO focused on creating impact and progress for tropical rainforests. AUA!
• Do the Covid vaccines have positive non-specific effects?
• Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
• How might a COVID vaccine treat COVID symptoms?
• Why does the direction the Entire Solar System is headed towards not match the Orbital North Pole?
• How does Symmetrical Encryption really work?
• Why can't they just stop diverting the rivers so as to replenish the Aral sea?
• What factors determine the loudness and power of a supersonic sonic boom?
• So, if a person gets the first dose of a Covid mRNA vaccine without noticeable issue, how could they have an allergic reaction (anaphylaxis) to the second dose? How is this possible?
• Does a chromosome always contain the same genes?
• What is the scientific explanation for pressure points and why do they hurt more than random areas?
• Why do bruises turn blue?
• Can fish in the same family hybridize?

AskScience AMA Series: We're scientists and researchers with Rainforest Partnership, an NGO focused on creating impact and progress for tropical rainforests. AUA! Posted: 21 Apr 2021 04:00 AM PDT We are Rainforest Partnership (RP) and in celebration of Earth Day tomorrow (4/22) we've teamed up with Reddit to answer questions about our 360 approach to forest protection and how to make informed decisions when supporting causes and organizations. With a focus on creating lasting impact and continual progression towards net zero deforestation by 2030, we're excited to discuss our upcoming global initiatives and the impact of our projects that is felt directly and immediately by local indigenous communities. Using our pragmatic approach to forest protection we focus on community-based work and building partnerships with a range of stakeholders allowing us to protect forests in a way that is measurable and lasting. Join us during one of our upcoming global initiative events: Earth Optimism: How to Spot Impact in the Wild, April 22 at 1P CT Films of the Forest: Eleven short films that "Inspire Hope", Earth Day, April 22 at 7P CT World Rainforest Day: Three days of events with international partners focused on protecting the rainforest, June 20-22 Joining us today are: Fanny Cornejo, PhD Candidate IDPAS: I am a Peru and US trained primatologist, and as Rainforest Partnership's Peru Country Director, I direct, manage, and implement the vision and action of RP's work in Peru. I have led multiple research and conservation projects focused on endemic species and their habitats within the Tropical Andes, Amazonia, and the Pacific Tropical Forests. Roshan Khan: Hi! My name is Rosie and I'm a junior at UT Austin, quintuple-majoring in Plan II, Government, Economics, International Relations and Global Studies, and Chinese. I also lead Rainforest Partnership's youth-conceived and youth-led initiative Gen Z for the Trees (Z4T). Our work focuses on global digital engagement: shifting the narrative on climate change, researching the drivers of deforestation, crafting actionable responses, and raising Z4T's international profile through our three pillars: educate, inspire, and change. We'll be on at 11AM PT/2PM ET/18 UT, AUA! Username: /u/RainforestPrtnrshp submitted by /u/AskScienceModerator [link] [comments]

Do the Covid vaccines have positive non-specific effects? Posted: 20 Apr 2021 06:45 PM PDT Some vaccines appear to have non-specific (or heterologous) effects. Specifically, the two live-attenuated BCG and measles vaccines seem to grant protection against things beyond what they were designed for. Meanwhile, the DTP vaccine, which is not live-attenuated, may have a detrimental non-specific effect, although the evidence here looks weaker. (EDIT: The possible effect here is a mild and negative immunomodulation. Studies attempting to replicate it keep giving conflicting data. Whatever it is, the effect is weak if it's there at all. No reason to start questioning vaccines, people.) I know it's early but I was wondering which category the Covid vaccines might fit in. So, do the mRNA Covid vaccines have positive non-specific effects? Do the adenovirus-based ones? submitted by /u/subucula [link] [comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 21 Apr 2021 07:00 AM PDT 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]

How might a COVID vaccine treat COVID symptoms? Posted: 21 Apr 2021 07:49 AM PDT There have been (thus far anecdotal) reports that some people experiencing "long haul" COVID symptoms long after they contracted COVID-19 have had them reduce or disappear after being vaccinated against COVID. I thought vaccines could only be used as a preventative measure, not as a therapeutic. What possible mechanisms would cause one of the vaccines to actually treat existing symptoms of the disease, assuming these reports are actually true? submitted by /u/asusa52f [link] [comments]

Why does the direction the Entire Solar System is headed towards not match the Orbital North Pole? Posted: 20 Apr 2021 11:07 PM PDT So I have read on multiple sources that the entire solar system is headed towards Vega. If anyone knows the exact Right-Ascension & Declination of the direction the entire solar system is headed (and the scientific name of "where we are headed" if there is one) I would love to see it. But I couldn't find it, so here is Vega's: 18h 36m 56.33635, 38° 47′ 01.2802 [Wikipedia] Meanwhile, our Orbital North Pole is 18 h 0 m 0 s +66° 33′ 38.84″ [wiki/Orbital_pole] That is a pretty big discrepancy of about 30 degrees. I find that interesting because we are told that the Solar System's movement through the galaxy is perpendicular to how the planets orbit such as pictures such as this show! Now I know that the planet's orbital planes vary, but none vary this much. Does the entire solar system move in a way such that its motion is not perpendicular to how most planets orbit the Sun, and is instead a bit skewed? submitted by /u/TIL_this_shit [link] [comments]

How does Symmetrical Encryption really work? Posted: 20 Apr 2021 03:00 PM PDT I get that one key is able to both encrypt and decrypt, but I can't find an explanation as to how that flies practically. Let's say you send e-mails using Symmetrical Encryption. Do you have a different key for every e-mail that's sent? And how are those keys exchanged with no possible interception? submitted by /u/maanirrigatie [link] [comments]

Why can't they just stop diverting the rivers so as to replenish the Aral sea? Posted: 20 Apr 2021 04:53 PM PDT This is something that has bugged me about the Aral sea since I learned of what the soviets did to it. I understand the water is still being used for agriculture in Kazakstan and Uzbekistan, but the devastation of losing the 4th largest lake in the world would seem to me to outweigh that. Am I missing something here? They just had a "Global Disruptive Tech Challenge 2021: Restoring Landscapes in the Aral Sea Region" in April, but none of them discussed even partially returning the rivers. submitted by /u/futurefamousauthor [link] [comments]

What factors determine the loudness and power of a supersonic sonic boom? Posted: 20 Apr 2021 09:11 AM PDT submitted by /u/Midnight001021 [link] [comments]

So, if a person gets the first dose of a Covid mRNA vaccine without noticeable issue, how could they have an allergic reaction (anaphylaxis) to the second dose? How is this possible? Posted: 20 Apr 2021 03:59 PM PDT I read on VAERS about a woman that had the first vaccine does without issue. Upon the administration of her second dose, she had a full blown anaphylatic reaction. How is this possible? Wouldn't the body of recognized and reacted to this the first time if a person was truly allergic? submitted by /u/Matt93mmurphy [link] [comments]

Does a chromosome always contain the same genes? Posted: 20 Apr 2021 09:27 AM PDT My current understanding (prob wrong) I have 23 chromosomes from my mother and 23 from my father. If I have a child I will pass on 23 of my chromosomes to it. Those 23 will be a random selection from the ones I inherited, so my child may end up with 6 of the ones I inherited from my father and 17 of the ones I inherited from my mother. Question Do chromosomes themselves consist of a random selection of DNA, or are the chromosomes constant and either the whole thing gets passed on to the child or it dies out? submitted by /u/SuspiciousNebula [link] [comments]

What is the scientific explanation for pressure points and why do they hurt more than random areas? Posted: 20 Apr 2021 09:27 AM PDT submitted by /u/theassassintherapist [link] [comments]

Why do bruises turn blue? Posted: 20 Apr 2021 04:38 AM PDT So I slammed the tip of my finger in a car door like a fool and noticed that the bruise under the nail is blue, why is that? Google says it's because of the blood but (I know this sounds dumb) shouldn't it be red? submitted by /u/Cyber_Soldger805 [link] [comments]

Can fish in the same family hybridize? Posted: 20 Apr 2021 06:47 AM PDT Bluegill, and largemouth bass are both in the sunfish family, does this mean they can hybridize or is their DNA to dissimilar? submitted by /u/PikaMasterWasTaken [link] [comments]

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