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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