Why is copper antimicrobial? Like, on a fundamental level |
- Why is copper antimicrobial? Like, on a fundamental level
- If there are two identical rockets in vacuum, one stationary and one somehow already moving at 1000kmh, and their identical engines are both ignited, would they have the same change in velocity?
- Why do mosaic humans not get attacked by their own immune system?
- Why are radiators below windows?
- How long take for an atom whose electrons have ascended to a higher orbit due to light absorption to go back in a ground state?
- How does Irukandji jellyfish toxin cause a Feeling of Impending Doom?
- Are there strains of HIV that aren’t detectable by modern testing?
- Are there people who are naturally immune to the flu?
- Is there such a thing as excess blood in your system? Hypothetically speaking what would happen to someone if you gave them a rapid blood transfusion when they didn't need one thus filling them up with more blood than they need?
- What percentage of children under 18 have died of Covid in America? Worldwide?
- Could we measure happiness with serotonin, dopamine, oxytocin and endorphins?
- Is the Immune System weaker in the extremities than in the central body?
- how does an evanescent wave decay?
- If the body can naturally dissolve blood clots formed in blood vessels on their own, how some people still suffer from DVT?
- Do supernovas spread dark matter around like matter, or is dark matter completely unaffected by the explosion?
- Are there any examples of animals keeping other animals as pets?
- Do rogue supermassive black holes exist?
- Is there an animal species where gender is the primary indicator of its majority color?
- What is the primary reason earth's climate gets colder the further you get from the equator?
- I understand the need for a standardized order of operations, but is there a reason behind the specific order? Or is it arbitrary like the order of the alphabet?
- Are pre-me babies expected to reach miles stones due to their birthday or their original due date?
- Do plants maintain a characteristic "body temperature" and if so, how is this temperature regulated?
- When we eat bacteria in yogurt and cheese etc. do we kill the bacteria, or do they just end up living in our stomachs?
- How does an object enter a planet's atmosphere and HIT?
- When you copy a computer file is it an exact one to one, or is there some data loss? So for instance if a file is copied multiple times does it degrade each time that it is?
| Why is copper antimicrobial? Like, on a fundamental level Posted: 06 Dec 2021 02:17 PM PST |
| Posted: 06 Dec 2021 04:09 AM PST Given that kinetic energy is the square of velocity, if both rockets' change in velocity is the same, that seems to suggest that the faster rocket gained more kinetic energy from the same energy source (engine). However, if both rockets' change in velocity are not the same, this seems to be incongruent with the fact that they are both in identical inertial frames of reference. [link] [comments] |
| Why do mosaic humans not get attacked by their own immune system? Posted: 07 Dec 2021 02:46 AM PST I recently found out that genetic mosaicism exists, in which a single person has multiple different sets of DNA at a time, in different groups of cells. However, it isn't clear to me why the body doesn't reject these cells with a different DNA, as is the case for e.g. organ transplants, or at least has immune responses between them? Why does the immune system reject transplanted organs, but not genetic mosaic tissue? [link] [comments] |
| Why are radiators below windows? Posted: 07 Dec 2021 07:26 AM PST I assume it is to create a heat curtain. I saw in some buildings with big doors there are vents from the insides, and this seems like a similar scenario. My problem is some sources say other various explanations. [link] [comments] |
| Posted: 07 Dec 2021 05:55 AM PST I am interested in finding out if there is a document with the time it takes for each atom to go from an excited state to a low-energy one. For example: when hydrogen passes from 1s to 2s it remains in this state for x seconds, etc. I'm a bit confused about this thing, thanks in advance! [link] [comments] |
| How does Irukandji jellyfish toxin cause a Feeling of Impending Doom? Posted: 06 Dec 2021 05:44 PM PST Most of the symptoms of irukandji syndrome I can understand. Pain, cramps, heart rate increase etc are fairly typical things a neurotoxin does. But by what mechanism does that very specific feeling get invoked? Or is it just anyone who is suffering from a possibly lethal and extremely distressing poisoning would quite rationally feel that they might die? [link] [comments] |
| Are there strains of HIV that aren’t detectable by modern testing? Posted: 06 Dec 2021 10:34 AM PST (Edited to meet guidelines) Hello all, Are there any cases where an individual might test negative (outside of the window period) using HIV RNA PCR & antibody/antigen testing despite actually being positive? Is it possible that someone might have some weird/rare mutation that causes the HIV RNA PCR test to not detect any HIV despite it being present? If so, would that mutation also impact the HIV antibodies to where they are also not detectable? Thank you for your time. [link] [comments] |
| Are there people who are naturally immune to the flu? Posted: 07 Dec 2021 05:48 AM PST |
| Posted: 06 Dec 2021 05:37 AM PST I was watching a youtube let's play and after getting hit real bad one of the commentators said it was fine, they had too much blood anyway. While obviously a joke it got me curious what would happen if that were a real thing. [link] [comments] |
| What percentage of children under 18 have died of Covid in America? Worldwide? Posted: 06 Dec 2021 09:05 AM PST |
| Could we measure happiness with serotonin, dopamine, oxytocin and endorphins? Posted: 06 Dec 2021 03:47 PM PST A lot of studies use self reporting to find out people's happiness but isn't that not very accurate since there could be different cultural definitions and feelings of happiness? I read the "Geography of Bliss" in high school and the Swiss had reportedly high levels yet their definition of happiness was much more mellow and contented. I realize there are other questions used and not just "how happy are you?" like life satisfaction scale and purpose scale which I skimmed through but I am just wondering wouldn't chemical levels be statistically more accurate? Is it impossible to be sad if your happy hormones (SDOE) are high? [link] [comments] |
| Is the Immune System weaker in the extremities than in the central body? Posted: 06 Dec 2021 09:37 PM PST As I understand the immune system, it relies on several components of the body to craft an effective response to a pathogen/foreign organism. If said infection occurs in my pinky toe, as opposed to my chest cavity, is the immune system more or less effective? I would think that it simultaneously would be better in the sense that there is far less at risk (major organs can't be infected in your toe vs. in your chest), but it's almost like a rural town where support can't get there fast enough, so an otherwise trivial infection might be harder to fight if the infection is in a remote extremity. Just a shower thought, and I tried googling this but wasn't able to find any useful answer. [link] [comments] |
| how does an evanescent wave decay? Posted: 07 Dec 2021 01:22 AM PST I've heard in a YouTube video that the evanescent wave, 'exponentially decays'. I'm afraid I don't understand this statement as I presume light can't decay. Or perhaps did they mean its INTENSITY decays exponentially? [link] [comments] |
| Posted: 05 Dec 2021 05:47 AM PST I heard the body is able to dissolve blood clots on their own, if thats possible then why do people still have long lasting blood clots/DVT? Cant the body just naturally get rid of if? Update: Thank you so much to everyone for answering this question, very much appreciated! [link] [comments] |
| Posted: 06 Dec 2021 01:05 PM PST |
| Are there any examples of animals keeping other animals as pets? Posted: 06 Dec 2021 03:14 AM PST |
| Do rogue supermassive black holes exist? Posted: 06 Dec 2021 12:18 PM PST Are there supermassive black holes lurking alone out there? How would it impact the Milky Way and Andromeda if a 50 billion solar mass monster rolled between both galaxies? [link] [comments] |
| Is there an animal species where gender is the primary indicator of its majority color? Posted: 06 Dec 2021 07:11 AM PST I was thinking about how (in modern-day American society,) blue is associated with boys while pink is associated with girls, but I understand that this correlation is arbitrary among Humans. I was wondering if any species has a situation where it ISN'T arbitrary. I looked at the wikipedia on sexual dimorphism, and while there's pictured species like the mandarin duck, it's not so much one color difference as it is a whole plethora of patterns and hues. I guess I'm saying this to indicate that I'm looking for a more straight up gender-color difference. Like in pokemon, where nidoran males are clearly purple, and nidoran females are clearly blue (excluding shinies). [link] [comments] |
| What is the primary reason earth's climate gets colder the further you get from the equator? Posted: 06 Dec 2021 08:00 AM PST I've already done some research on this, and it seems like the first explanation you see is this:
I understand this, but I'm not convinced that there aren't other (and possibly more important) reasons for the temperature differences around the globe, so my follow up questions are:
Thanks! [link] [comments] |
| Posted: 05 Dec 2021 08:41 AM PST |
| Are pre-me babies expected to reach miles stones due to their birthday or their original due date? Posted: 06 Dec 2021 08:21 AM PST If two babies we're conceived at the same time but one was born 2 months early and the other one was born on their due date, would the premature baby start reaching milestones before the "younger" baby or does the pre-me baby still have to continue to grow before reaching them? [link] [comments] |
| Do plants maintain a characteristic "body temperature" and if so, how is this temperature regulated? Posted: 05 Dec 2021 02:44 AM PST |
| Posted: 05 Dec 2021 05:13 PM PST |
| How does an object enter a planet's atmosphere and HIT? Posted: 05 Dec 2021 08:25 PM PST Say an object of substantial mass like a asteroid or something, coming from space. Does it get stuck in the planet's orbit first, spinning around until it makes contact like those penny spinner things at the mall? Or does it ignore orbit and just shoot straight into a planet? I guess what Im asking is, is it a spiral until impact or a straight line from outer space? [link] [comments] |
| Posted: 05 Dec 2021 02:36 PM PST |
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