Does leaving water in the kettle accelerate the formation of limescales?

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• Does leaving water in the kettle accelerate the formation of limescales?
• Would antivirals prevent you building long term immunity?
• What does "cooking" dynamite into "grease" mean?
• Are There Any Invasive Species that Originate FROM Australia?
• (Geology) The "polar wander hypothesis" was debunked, but isn't the phenomenon of a wandering pole an actual thing since we've observed that magnetic North moves?
• Why do levels of procalcitonin increase during a bacterial infection?
• Do other animals perceive taste like we do (Sweet, spicy, salty, bitter, sour and umami)?
• Can we repair damaged nerves?
• How does stretching actually make the body more loose and flexible over time?
• If mouthwash kills 99.9% of bacteria, why do we still have to brush our teeth?
• Just saw a post linked to a news article saying scientist found some planet 117 light years away in the Goldilocks zone, my question is how important is it to have a moon? Would it be habitable without one still?
• Two balls rolling down a hill. Which one is faster?
• How can recombination happens between 2 covid variant?
• does cancer need to display antigens for killer T cells to recognize it? And do natural killer cells recognize it without it displaying antigens?
• How did the Human Genome Project tackle the issue of mutation?
• How did insects reach Hawaii?
• How come different allotropes of Carbon have different Molar Masses?
• Why does Antiphospholipid syndrome result in a prolong PTT?
• can free groups of different (infinite) sizes be isomorphic?
• are the palm trees native to the americas related to the ones in places like the middle east?
• How does the international space station get fresh air?
• Is Montessori's "Sensitive Phases/Periods" an accepted concept? Alternatively: Is it possible children never catch up something they didn't learn at the right time?
• What's the highest theoretical energy density for a battery?
• How has the Saharan Desert changed in response to climate change?
• What's the difference between free-free and Thomson scattering within stars?

Does leaving water in the kettle accelerate the formation of limescales? Posted: 17 Feb 2022 04:42 AM PST Our kettle is building up limescales very fast due to the hard water. The question is if leaving remaining water in it is considerably accelerating the process. Residual water will slowly evaporate and leave it behind. On the other hand, temperature decreases the soluibility (e.g.) of CaCO3, causing precipitation (?).So is the formation of liimescales due to the boiling process or leaving water in the kettle? submitted by /u/mojonrgy [link] [comments]

Would antivirals prevent you building long term immunity? Posted: 17 Feb 2022 03:50 PM PST Using antivirals would kill off the virus before your body could mount an immune response and start producing antibodies so would this not negatively affect your long term immunity towards the virus? submitted by /u/ConstantGuest6999 [link] [comments]

What does "cooking" dynamite into "grease" mean? Posted: 16 Feb 2022 07:12 PM PST Big fan of Prohibition-era non-fiction and in a memoir I read of a safecracker, he talks of the explosives -- aka "grease" -- he would use to open safes: "Shooting a box is real touchy because the grease that you're using is cooked out of dynamite and it's not the same consistency as nitroglycerin that you buy. Sometime it may be real strong and next time weak and there's no way to tell until you try it out." He doesn't mention anything else about it and I've Googled this from every angle I know how. What does he mean by "cooked"? Literally, in an oven or on the stove? What is all even in that "grease"? Is it soupy or solidified? EDIT: I'm now aware of Nobel having made nitroglycerin safer by inventing dynamite so that's cool. submitted by /u/Chaloby [link] [comments]

Are There Any Invasive Species that Originate FROM Australia? Posted: 17 Feb 2022 05:08 PM PST We hear all about the invasive species in the land down under; from its toxic cane toads to its out of control rabbit populations, but is there any plants or animals from Australia that are invasive anywhere else in the world? submitted by /u/1fishmob [link] [comments]

(Geology) The "polar wander hypothesis" was debunked, but isn't the phenomenon of a wandering pole an actual thing since we've observed that magnetic North moves? Posted: 17 Feb 2022 04:55 PM PST My textbook says As paleomagnetists sampled and measured older and older rocks, their results seemed to show that the north magnetic pole was far from the modern pole and appeared to wander through time. This was called the "polar wander hypothesis" at first. But then they ran into a problem. Each continent had a completely different polar wander curve, which only converged on a common magnetic pole today. These data seemed to suggest that the magnetic field had behaved very strangely in the past, with multiple directions of magnetic north that no longer exist. As outrageous as that idea seemed, the only alternative was just as radical: the continents had moved through time, so it was not the magnetic pole that was changing but the continents that recorded their directions. But when you lined up the polar wander curves for two different continents, like Europe and North America, you found that they matched once you moved the continents back together as Wegener had suggested. In other words, the "polar wander curves" were only apparent polar wander curves because it was the continents that moved, not the magnetic poles. What I'm confused about is my book saying, "the continents had moved through time, so it was not the magnetic pole that was changing" because isn't that not completely true since magnetic North DOES move? We've observed this movement, so isn't my book completely dismissing the idea of a "wandering pole" incorrect? Everything I've watched and read online only talks about the effect of continental drift on the apparent wander curves, but they haven't talked about how the magnetic North pole does, in fact, move. Can't the movement of the magnetic North pole have had at least a tiny influence on the polar wandering curves? submitted by /u/sinecosx [link] [comments]

Why do levels of procalcitonin increase during a bacterial infection? Posted: 17 Feb 2022 06:30 AM PST I know it rises because of the inflammatory response, but it doesn't lead to more calcitonin or decrease blood calcium levels. So what is it doing? submitted by /u/Internal-Leek-2081 [link] [comments]

Do other animals perceive taste like we do (Sweet, spicy, salty, bitter, sour and umami)? Posted: 17 Feb 2022 06:58 AM PST submitted by /u/CrappysaurusRex [link] [comments]

Can we repair damaged nerves? Posted: 17 Feb 2022 04:09 AM PST If yes, which ones and how? submitted by /u/easyritirana [link] [comments]

How does stretching actually make the body more loose and flexible over time? Posted: 16 Feb 2022 04:44 AM PST I recently started kickboxing and I'm extremely stiff. However, my legs are gradually becoming more flexible and i find the process fascinating! EDIT: Wow thanks for all the interest everyone, learning a lot. It's kinda crazy we still don't have the complete facts about how muscles become flexible through yoga and stretches. submitted by /u/samedwar [link] [comments]

If mouthwash kills 99.9% of bacteria, why do we still have to brush our teeth? Posted: 17 Feb 2022 08:48 AM PST Mouthwash with alcohol in it allegedly kills 99.9% of bacteria. If bacteria are responsible for tooth decay, why isn't it enough to just rinse with mouthwash? Why do we also have to brush our teeth? Can we not stop tooth decay with mouthwash alone? I can see how flossing still makes sense -- to ensure the alcohol can get in between the teeth. And I know rinsing with alcohol every day is not necessarily good for your oral cancer risks. But I'm just curious. submitted by /u/12_Yrs_A_Wage_Slave [link] [comments]

Just saw a post linked to a news article saying scientist found some planet 117 light years away in the Goldilocks zone, my question is how important is it to have a moon? Would it be habitable without one still? Posted: 17 Feb 2022 02:56 AM PST submitted by /u/Hazy_Robot [link] [comments]

Two balls rolling down a hill. Which one is faster? Posted: 17 Feb 2022 02:55 AM PST Two identical size but different mass balls rolling down a frictionless slope. Which one wins the race? Looking for an answer to settle an argument among sone cyclists please. submitted by /u/Ok_Anything_3239 [link] [comments]

How can recombination happens between 2 covid variant? Posted: 16 Feb 2022 04:58 AM PST I can understand how recombination can happen very easily in influenza since their genome is segmented, but how is recombination possible for covid, which is single stranded submitted by /u/DoBestWifWtGodGivesU [link] [comments]

does cancer need to display antigens for killer T cells to recognize it? And do natural killer cells recognize it without it displaying antigens? Posted: 17 Feb 2022 01:11 PM PST submitted by /u/hand287 [link] [comments]

How did the Human Genome Project tackle the issue of mutation? Posted: 17 Feb 2022 10:02 AM PST When sequencing the human genome, would random mutations in any one human's DNA have affected the results? Did the scientists sequence the genome of several humans' DNAs to address this problem? submitted by /u/koons_fan [link] [comments]

How did insects reach Hawaii? Posted: 17 Feb 2022 02:03 AM PST Or any other volcanic/atoll islands in the Pacific? It seems like the distance needed to cover are far too much for any insect to cover. And unlike say the Americas or Australia, which were at one point a part of Pangea, many of the volcanic islands are "only" a few million years old, and never formed as part of a continental landmass. So the insects had to somehow migrate. How did insects come to colonise these islands? Hawaii is thousands of km away from North America submitted by /u/nikolakis7 [link] [comments]

How come different allotropes of Carbon have different Molar Masses? Posted: 17 Feb 2022 01:40 PM PST submitted by /u/JoJammaJack [link] [comments]

Why does Antiphospholipid syndrome result in a prolong PTT? Posted: 17 Feb 2022 01:11 PM PST I'm confused about it's role in the Intrinsic coagulation pathway that causes this prolong PTT submitted by /u/twopeas_onepod [link] [comments]

can free groups of different (infinite) sizes be isomorphic? Posted: 17 Feb 2022 03:14 AM PST Let a and b be cardinals. I can prove that for the free group on a and b generators to be isomorphic, 2^a = 2^b. So assuming the generalised continuum hypothesis, the free groups on a and b can only be equal if a and b are equal. However, there are models of ZFC where GCH is false. So are there models of ZFC or ZF where two free groups on different sized sets are isomorphic? submitted by /u/deaths_accountant [link] [comments]

are the palm trees native to the americas related to the ones in places like the middle east? Posted: 16 Feb 2022 09:52 PM PST is palm tree just a word used to describe the shapes of trees that happen to look alike or did they somehow spread all over the globe? submitted by /u/ventaline [link] [comments]

How does the international space station get fresh air? Posted: 16 Feb 2022 04:45 PM PST Forgive me if this is a stupid question but I was wondering what process they use to get oxygen up there. submitted by /u/ZaydenO [link] [comments]

Is Montessori's "Sensitive Phases/Periods" an accepted concept? Alternatively: Is it possible children never catch up something they didn't learn at the right time? Posted: 16 Feb 2022 10:06 PM PST This came up in a conversation with a coworker about the Corona lockdowns. She claimed that children would have life long deficits in speaking, mimicking, etc. because when they don't learn such things at the correct time, it's almost impossible to catch up to the usual path. I doubted that because I thought those skills are rather being improved thw whole life, but had no experience with children and related science. I only found out that goes back to Montessori when I googled it - and then I realized I ONLY find Montessori schools or forums on that topic but no studies or else. Are there scientific studies/theories/experiments that support or deny that claim? submitted by /u/Estesz [link] [comments]

What's the highest theoretical energy density for a battery? Posted: 16 Feb 2022 11:36 PM PST What is the highest theoretical energy density a chemical or otherwise battery (nuclear, fuel cell, etc) could achieve? submitted by /u/t-cell-baum [link] [comments]

How has the Saharan Desert changed in response to climate change? Posted: 17 Feb 2022 12:08 AM PST And how is it projected to change in the future? Could the climate change actually cause it to become a lush rainforest once more? Or will it become even more uninhabitable than it already is? submitted by /u/breh2022 [link] [comments]

What's the difference between free-free and Thomson scattering within stars? Posted: 17 Feb 2022 03:37 AM PST I get the difference between bound-bound, bound-free and free-free scattering processes, but I don't really understand what sets the last and Thomson scattering apart. Note that I'm still unfamiliar with Rayleigh and Compton scatterings, so feel free to expand upon those if needed. Thanks in advance! submitted by /u/itsOkami [link] [comments]

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When the heart beats faster, the contractions are closer together in time. But is each contraction itself also faster?

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• When the heart beats faster, the contractions are closer together in time. But is each contraction itself also faster?
• Why does the immune system specifically attack the joints in rheumatoid arthritis?
• Why are UHF TV antennas (almost) always loop antennas, vs. VHF antennas which are usually whip antennas?
• How does velocity through space affect perception of time?
• Could the rabies virus infect insects?
• How do we know photons have no mass vs simply being so small we have no current way of detecting their mass?
• How do gyroscopes work?
• Can you break down exactly what happens during serotonin syndrome?
• Why does water have the highest density at 4 °C?
• What are the direct causes of inflation? Why does inflation happen so quickly?
• Does snow evaporate without melting?
• If I had a lightbulb in a sealed box and turned it on would the light stay in the box?
• Where is the consciousness located?

When the heart beats faster, the contractions are closer together in time. But is each contraction itself also faster? Posted: 15 Feb 2022 02:04 AM PST One of my students asked this the other week, and it triggered an intense debate in the classroom. Either answer feels fairly credible! I promised I'd try to look it up, but Google hasn't been very helpful, and a family member who's a medical doctor also wasn't completely sure. It seems to me that since each contraction is coordinated by an impulse traveling down the heart from the SA node, those impulses would need to travel at variable speeds through the cardiac tissue if the contractions were to vary in speed, which feels unlikely? submitted by /u/mabolle [link] [comments]

Why does the immune system specifically attack the joints in rheumatoid arthritis? Posted: 15 Feb 2022 07:42 AM PST Why doesn't it attack (for example) the stomach or the thigh? Edit: thanks for your answers! submitted by /u/TrueAbbreviations491 [link] [comments]

Why are UHF TV antennas (almost) always loop antennas, vs. VHF antennas which are usually whip antennas? Posted: 15 Feb 2022 09:38 AM PST submitted by /u/Prince_Caelifera [link] [comments]

How does velocity through space affect perception of time? Posted: 15 Feb 2022 12:38 PM PST Hello, me and a friend were just watching some vids about time dilation and me and my buddy are trying to figure out where our logic is wrong here, so it would be great to see what we are missing. Understandings: When moving at the speed of light away from a clock, the clock would be perceived as 'frozen' to the travelling person's eyes. What I don't understand about this is that, from what I know the way the eye works is that light must hit the retina for my brain to perceive an image. But surely if I'm moving away at the same speed the light is (both constant speeds), then the first bit of light might hit my eye, but after that there is no distance being made between the light and my eye since both are the same constant speed (for example 2 cars travelling in front of each other in the same direction at the same speed would never actually hit). Surely nothing would be hitting my eye anymore. What am I missing here? I have heard a lot that time dilation is just perspective, just like when I mentioned above, time seemed to be frozen due to moving away from the clock at the speed of light. What I also don't get about this is that, time 'seems' to be frozen, however this is just because the light is not given the chance to hit my retina, surely that's just a visual effect. I have heard that time dilation could theoretically affect how you would age compared to another perspective, but I just don't see how that is the case since everything is to do with 'perspective'. Surely travelling away from that clock at the speed of light doesn't actually stop time for me as an observer, it just stops me seeing the light coming off of it which tells me the clock is ticking. When I return back to earth, everything would have aged the same amount as me? Any comments or clarifications would be awesome! Neither of us study or work in scientific fields so I'm not sure if there is a relatively simple way of explaining this, but again any help would be really appreciated :) submitted by /u/JoergenSchmurgen [link] [comments]

Could the rabies virus infect insects? Posted: 15 Feb 2022 02:03 AM PST If no, why? If yes, why isn't it that the virus spreads rapidly to all animals? submitted by /u/SkullTune [link] [comments]

How do we know photons have no mass vs simply being so small we have no current way of detecting their mass? Posted: 14 Feb 2022 10:12 PM PST So I don't know a whole lot about partical physics, I only took a basic physics class at a community college so a simplified explanation would be best but: How do we know that photons don't have a mass? Could it simply be that they have a very small mass we simply haven't detected yet with current technology? And how do we know? submitted by /u/new_usernaem [link] [comments]

How do gyroscopes work? Posted: 15 Feb 2022 06:19 AM PST What is it about rotating mass that creates stability? Also if speed depends on your frame of reference, do gyroscopes have a "universal" frame of reference in space? (I'm probably misunderstanding part of how that works) submitted by /u/chandrian777 [link] [comments]

Can you break down exactly what happens during serotonin syndrome? Posted: 14 Feb 2022 09:47 PM PST I'm having difficulties finding out exactly what happens in the brain during the whole process of serotonin syndrome so I'm wondering what exactly happened how does the poisoning happen just like the fine details of it submitted by /u/RealisticBar7194 [link] [comments]

Why does water have the highest density at 4 °C? Posted: 14 Feb 2022 01:05 PM PST submitted by /u/Brillianton [link] [comments]

What are the direct causes of inflation? Why does inflation happen so quickly? Posted: 14 Feb 2022 12:10 PM PST I've been trying to understand inflation for a while, but I can't wrap my head around what exactly makes it happen. If a material becomes more scarce/abundant, it makes sense for its price to change. Would it not take time for that price change to reach the end products though? If we look at gas prices for example, why would they change every hour? submitted by /u/38248619022577793790 [link] [comments]

Does snow evaporate without melting? Posted: 14 Feb 2022 01:26 PM PST I live in a high desert with very low humidity (15%). About 50 cm of snow fell at the end of December. No new snow has fallen for 6 weeks and the temperature has never been above 0 C, yet the depth of snow has decreased to about 25 cm. What causes the depth of snow to decrease when it doesn't melt? submitted by /u/HogSliceFurBottom [link] [comments]

If I had a lightbulb in a sealed box and turned it on would the light stay in the box? Posted: 14 Feb 2022 10:49 PM PST submitted by /u/passive_progressive [link] [comments]

Where is the consciousness located? Posted: 14 Feb 2022 10:53 AM PST I watched a documentary on the topic then wanting to get more sources on the topic. Itwas harder then i thought and still have a hard time understanding what the scientific concensus is if there is any. https://youtu.be/CmuYrnOVmfk The doc I watched talked about the brain stem area. submitted by /u/cemilanceata [link] [comments]

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Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

Why are organic solvents usually volatile?

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• Why are organic solvents usually volatile?
• How do auxetic materials work?
• When one draws in their stomach, where does the volume go? Can the intestines compress?
• Does water freeze if left still in perfect conditions?

Why are organic solvents usually volatile? Posted: 14 Feb 2022 01:56 PM PST Most of the organic solvents that I'm familiar with also happen to be very volatile. Is this a coincidence, or is there some underlying property of volatile compounds that make them good organic solvents? submitted by /u/Sure-Ad-471 [link] [comments]

How do auxetic materials work? Posted: 14 Feb 2022 02:10 PM PST I learned that auxetic materials have a negative poisson's ratio, so when you pull on them they also expand in other directions. How does this work? The solid can't gain volume, so where is the material coming from? submitted by /u/Machoflash [link] [comments]

When one draws in their stomach, where does the volume go? Can the intestines compress? Posted: 13 Feb 2022 05:09 PM PST No additional questions. submitted by /u/splitframe [link] [comments]

Does water freeze if left still in perfect conditions? Posted: 13 Feb 2022 02:47 PM PST Theoretically, would water freeze if it were left in a closed container in a vacuum of space (no external forces on container) over an infinite period of time? Temperature is correlated with the speed of particles. Therefore, over an infinite amount of time, would these water particles eventually slow down/settle enough to freeze? submitted by /u/DrCocomo [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

How do eyelash microorganisms get to a newborn?

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• How do eyelash microorganisms get to a newborn?
• Is there another pair of animals that reverse hunter and prey in their lifecycle?
• If you were to hold a strong magnet very close to your body. Would that magnet have an influence (if any) on our bodily functions over time?
• How valuable is sterilization of a knife used to cut raw chicken?
• Why do lighter Olympic ski jumpers have longer jumps?
• How are natural instincts explained on a fundamental level? Where do they originate and how are they inheritable?
• Why do some animals hop instead of walking?
• Did Ice Stay At the Poles Year Round During Pangea When all the land was concentrated in the tropics, How Did That Affect the Weather?
• What happens in a photon-photon colliding when each photon energy is 120 Mev?
• Given the constant tectonic movement, will there someday be an 8th continent?
• Does an acquired immune response (e.g. to a virus) get stronger when it is “used” to successfully defend against that virus in subsequent exposures?
• What is the chemical and anatomical difference between the muscle tissue that makes up crustacean meats like crab & lobster vs. vertebrates including cattle, poultry, and fish?
• Protocooperation and Facultative Mutualism difference?
• Why is cerebrospinal fluid salty?
• How is Sodium Polyacrylate able to absorb water?
• Do Species of different genus mate?
• I was always taught that you get stronger when exercising because your muscles "tear" and they repair by adding new growth. Recently I learned that a certain muscle cell metastasizes, leaving one copy for future use and the other copy embeds into the muscle. What exactly happens for muscle growth?
• Is there expansion in gravitationally bound space?
• What was the Arctic Ocean like during the peak glaciation?
• How does conservation of energy allow or prevent a spring system from regaining energy?
• How do we know that the brain stops developing at 25?
• Where do great white sharks give birth?

How do eyelash microorganisms get to a newborn? Posted: 14 Feb 2022 07:50 AM PST All people have eyelash microorganisms, but I don't think they are born with them. How do they populate a newborn? Edit—I was referring to the mites that exist near eyelashes, but I'm also curious about other microorganisms as well! Thank you for all of these detailed and thoughtful responses. The human body is cool: submitted by /u/ablarimer [link] [comments]

Is there another pair of animals that reverse hunter and prey in their lifecycle? Posted: 13 Feb 2022 04:19 PM PST Question from my 4th grader. The dragonfly nymphs prey on tree frog tadpoles, but grown tree frogs can hunt dragonflies. Is there another pair of animals that reverses these roles? Thanks in advance. We were watching a video on National Geographic kids if you want to share this with your kids. submitted by /u/greg_d128 [link] [comments]

If you were to hold a strong magnet very close to your body. Would that magnet have an influence (if any) on our bodily functions over time? Posted: 13 Feb 2022 07:13 AM PST submitted by /u/ystepieet [link] [comments]

How valuable is sterilization of a knife used to cut raw chicken? Posted: 14 Feb 2022 10:04 AM PST The guidelines for cleaning a knife after cutting raw chicken typically advise to sterilize with something like a chlorine bleach solution after washing with soap and water. Conversely, the guidelines for washing your hands after handling raw chicken are to thoroughly wash with soap and water for 20-30 seconds. If washing with soap and water is truly sufficient to ensure your hands are not a significant disease vector for something like salmonella, why does the same not hold true for a knife blade? submitted by /u/burf [link] [comments]

Why do lighter Olympic ski jumpers have longer jumps? Posted: 14 Feb 2022 11:24 AM PST In research for a presentation on the topic I came across this study which simulated jumps, keeping ALL factors (velocity at takeoff, drag and body size, angle of fall, air density, etc) constant, and changing ONLY body mass. They found a direct relationship between body mass and jump distance, with lighter simulated athletes attaining longer jump distances and more airtime. How is this possible? If you have two objects of the same size and drop them from the same height, they fall at the same speed. So why is it that when body size, air resistance, angle of flight, etc are all held the same, mass still influences jump distance? I know that the athlete's trajectory has a horizontal component as well as a vertical. So from my understanding, mass shouldn't affect the vertical component (acceleration due to gravity). How does it affect the horizontal component, when takeoff velocity (the forward acting force) and air resistance (the inhibiting force) are held the same? I'd really appreciate any help with this, I'm totally stumped-- but to be fair, my understanding of physics is pretty limited (I'm in health sciences). Thanks in advance! submitted by /u/forestfortuity [link] [comments]

How are natural instincts explained on a fundamental level? Where do they originate and how are they inheritable? Posted: 13 Feb 2022 07:12 AM PST How are instinctual behaviors inherited? Would they survive in an animal raised in isolation from others of its same species? I find complex behaviors like intricate web, hive, and nest creation particularly fascinating. submitted by /u/Artane_33 [link] [comments]

Why do some animals hop instead of walking? Posted: 13 Feb 2022 07:54 AM PST Some birds, rodents, marsupials etc hop rather than stride, but not all. What is it that makes it a better way to move for only certain members of the species. Why is it always one or the other and not some mix? Are there any examples of it being individual case by case rather than across the board for that animal? submitted by /u/cl0th0s [link] [comments]

Did Ice Stay At the Poles Year Round During Pangea When all the land was concentrated in the tropics, How Did That Affect the Weather? Posted: 13 Feb 2022 05:09 PM PST submitted by /u/WeakLiberal [link] [comments]

What happens in a photon-photon colliding when each photon energy is 120 Mev? Posted: 13 Feb 2022 10:28 AM PST Hello, I am a 17 y.o stduent who is trying to fully understand photons colliding. We usually know that when two photons collide and each one's energy is 0.511 Mev they produce an electron and a postiron and this idea is the same for other particles. But what if two photons with an energy, which is not equivalent to any other particle, collide? What would they produce? Or would they even collide? Like for example 120 Mev. Thank you very much. submitted by /u/vizex9 [link] [comments]

Given the constant tectonic movement, will there someday be an 8th continent? Posted: 13 Feb 2022 08:55 AM PST submitted by /u/Prace_Ace [link] [comments]

Does an acquired immune response (e.g. to a virus) get stronger when it is “used” to successfully defend against that virus in subsequent exposures? Posted: 13 Feb 2022 09:19 AM PST submitted by /u/IronFires [link] [comments]

What is the chemical and anatomical difference between the muscle tissue that makes up crustacean meats like crab & lobster vs. vertebrates including cattle, poultry, and fish? Posted: 12 Feb 2022 06:34 PM PST submitted by /u/SingerScholar [link] [comments]

Protocooperation and Facultative Mutualism difference? Posted: 13 Feb 2022 08:30 AM PST As the title suggests, can someone please explain the difference between these two positive relationships between organisms? As I understand both have the same meaning - a type of interaction where both parties benefit but isn't essential to their survival. submitted by /u/Hris22 [link] [comments]

Why is cerebrospinal fluid salty? Posted: 13 Feb 2022 02:13 AM PST I would've thought that the reduced Ψ outside of cells would've been damaging but I feel like I'm missing something extremely obvious, a bit of a mental block really. submitted by /u/detonater700 [link] [comments]

How is Sodium Polyacrylate able to absorb water? Posted: 13 Feb 2022 03:21 AM PST Through reading, I can see that it has something to do with the osmosis between the Sodium and the water and the cross-links between the chains to keep it all together. Is anyone here able to explain it to me in more depth or provide me with some high school friendly resources where I can understand more about this (maybe diagrams)? submitted by /u/Zombie_Chickenz [link] [comments]

Do Species of different genus mate? Posted: 13 Feb 2022 12:10 AM PST I'm not talking about closely related species like lions and tigers but things like fur seals and king penguins. It's so fucked up that its interesting submitted by /u/EstablishmentShoddy1 [link] [comments]

I was always taught that you get stronger when exercising because your muscles "tear" and they repair by adding new growth. Recently I learned that a certain muscle cell metastasizes, leaving one copy for future use and the other copy embeds into the muscle. What exactly happens for muscle growth? Posted: 12 Feb 2022 07:11 PM PST submitted by /u/gomi-panda [link] [comments]

Is there expansion in gravitationally bound space? Posted: 12 Feb 2022 06:09 PM PST I was just reading a layman's article about expansion, that it is observed in largely empty space but not in gravitationally bound areas like galaxies. Do scientists believe that there actually is no expansion in that bound space? Or do they believe that space does expand in those areas, that gravity holds the mass together while the new space expands out past it, and that as a result expansion is not observed? submitted by /u/movtga [link] [comments]

What was the Arctic Ocean like during the peak glaciation? Posted: 12 Feb 2022 07:46 PM PST The oceans were smaller when a lot of the water was locked away as ice on land, freeing up great expanses of continental shelf. But the deep ocean remained liquid. That much I understand. But some things are confusing to me: I know there are undersea ridges similar to the mid-Atlantic Ridge in the Arctic Ocean. And I know the sea was saltier. 1) Was the sea ice thinner, because of the higher salinity? (Is the Arctic ice cap frozen salt water all the way, or is it mostly fresh water because fresh water freezes out of solution? Does new precipitation continuously added to the top make the ice cap basically fresh water anyway?) Or was it thicker, because the climate was colder? 2) Did the polar cap rest on the ocean floor? Was the ice cap grounded in places, like on the Langseth Ridge? 3) Did the lower sea level mean some of these undersea peaks were islands during the glacial periods? (For that matter, were there lots of islands, like Iceland today, along the Mid-Atlantic Ridge?) Thank you! submitted by /u/whyareyouwhining [link] [comments]

How does conservation of energy allow or prevent a spring system from regaining energy? Posted: 13 Feb 2022 03:29 AM PST I'm not sure if you are familiar with a safety lancet , basically its something like this https://m.youtube.com/watch?v=YwpJc6Ii8OM Just wondering if the safety lancet in the video could somehow : 1)be fired (by being pressed down onto someones skin) 2)compress itself back to a near fully compressed state after it reached its maxed extended state and started returning(>99%, almost no losses whatsoever like extremely extremely small) where the plastic hooks could hold it back in place (imagine the spring rebounding and the hooks being allowed to return to their original position because the user has stopped applying pressure to the persons skin thereby allowing the hooks to return to their original position therefore recapturing the spring in its original position)*** Best example i can think of is an automatic gun where the firing pin is ready to strike the primer of the bullet again without manually compressing the hammer like in a revolver , i know a gun uses the recoil from the cartridge explosion to reload just the closest thing i can think of All this without any other intervention , solely the device as it is. Maybe some sort of system with extremely low losses? So low that the spring is retracted to almost the same height as it started from. I know there would be a ton of calculations to get the spring to return just as the hooks were returning back ot their original position , just wondering if this is possible. In my head if the losses were extremely small to the point you could barely even see the losses this would be possible because the hooks would recapture the spring replacing the energy lost to friction and piercing of the skin , but i have minimal knowledge of physics & engineering and wanted to ask the experts. Not trying to design a reusable lancet. Just want to know if its possible. I know safety lancets are for the most part designed to be single use. I just feel that if the losses were extremely small it would be possible Apologies for the lengthy and long winded question just wanted an answer with explanation behind it rather than "nope" Thank you for any time spent answering the question submitted by /u/funkymonkey123444 [link] [comments]

How do we know that the brain stops developing at 25? Posted: 12 Feb 2022 04:54 PM PST Is it around the same age for all people, even those with brain conditions? When was this number discovered? submitted by /u/HyperConnectedSpace [link] [comments]

Where do great white sharks give birth? Posted: 12 Feb 2022 12:27 PM PST submitted by /u/dillyteriyum [link] [comments]

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