| Has there ever been a known case about your body's immune system detecting your eyes separate immune system? And how does that whole thing work? Posted: 22 May 2022 10:41 AM PDT I have read something that says your eyes have a different immune system than the rest of your body and if your body's immune system found out, than it will attack and you will go blind. submitted by /u/D3CAPITAT3 [link] [comments] |
| How does the body determine how high to raise a fever? Posted: 21 May 2022 10:47 PM PDT |
| How does electric eels discharge electricity into it's surroundings? Posted: 22 May 2022 07:02 AM PDT My very basic understanding is that electric eels stack their electricytes in series similar to many many tiny batteries together to generate hundreds of volts. But wouldn't the electric current just flow within their eletricity generating organ from one direction to the other? How does it circuit with the outside environment? What structure is insulating the anode from the cathode? submitted by /u/MrMangosteen [link] [comments] |
| Why did we stop inoculating against smallpox? Posted: 21 May 2022 06:51 AM PDT I understand the amazing human achievement that the disease was eradicated. That said, we have an effective method against keeping people from getting sick from any possible accidental or other recurrence of the disease, so why don't we continue using it widely just in case? I've also seen that it is/was effective in suppressing other "pox" diseases (eg, monkeypox), which seems like a big benefit. So why did we just…stop? Were there major costs and/or side effects that made it not worth it? Or is it kinda just a big victory lap that we might regret? submitted by /u/cazlan [link] [comments] |
| Would wires made of anti-matter have the same electrical properties? Posted: 21 May 2022 07:17 PM PDT Would the right hand rule still apply or would it be the left hand rule? Would electricity be propagated with positrons and would this change how the magnetic fields would be generated? Is it the same, but opposite or the same in general? submitted by /u/Deserok [link] [comments] |
| Can the gut microbiome restore itself to healthy levels after antibiotics and if so, how long does this take? Posted: 21 May 2022 06:44 AM PDT |
| Is there a universal bone marrow donor type? Posted: 21 May 2022 04:20 PM PDT There is a very rare blood type called Rh-null that basically all people can receive without having a bad reaction to it. Only 43 people have been reported to have it. Is there something similar for bone marrow? submitted by /u/AppropriateToe1160 [link] [comments] |
| Does food actually “soak up” alcohol in the stomach? Posted: 20 May 2022 10:14 PM PDT |
| Is there a point in the universe that is considered stationary? What happens with time in that point? Posted: 22 May 2022 08:24 AM PDT As our solar system is moving and our galaxy is moving as well, is there a point in the universe, like some "zero" reference point, that is considered stationary? And second question - if time flow is connected with velocity (time dilatation), what happens with time in absolute stationary point? submitted by /u/mariuszz [link] [comments] |
| Do blind people have better stronger senses of touch and hearing than people with 20/20 vision? Posted: 22 May 2022 05:32 AM PDT By blind people I mean, people who were born blind or became blind later on. I haven't found a concrete answer anywhere. submitted by /u/getgaming4201 [link] [comments] |
| Is it possible for two relatively unrelated species to experience so much convergent evolution that they are able to reproduce together? Posted: 21 May 2022 07:09 AM PDT For example, whales evolve to the point that they are able to reproduce with hippos. Or even more narrow, if a species of monkey that is currently unable to reproduce with another evolves to the point they are able to? submitted by /u/offhandbuscuit [link] [comments] |
| What causes the resonance when I stomp on hardpan, as opposed to regular ground? Posted: 22 May 2022 08:11 AM PDT |
| Does the smallpox vaccine protect against the monkeypox virus? Posted: 20 May 2022 04:06 PM PDT |
| Is there a link between concussion outcomes and nutrition? Posted: 21 May 2022 10:45 PM PDT |
| Is there a limit to the number of planets that can plausibly form around star systems of two or more stars? Posted: 21 May 2022 06:30 AM PDT |
| How can someone become algeric to something they were not previously allergic to? Posted: 21 May 2022 05:15 AM PDT |
| Why does the blood donation clinic give me a salty snack after donating? Posted: 21 May 2022 07:08 AM PDT |
| How spherical is the sun? Does it have permanent mountains / valleys / bulges? Posted: 21 May 2022 12:36 AM PDT I don't even know if this is a stupid question or not, but does the sun have "mountains" or "valleys"? Surface areas where there is a permanent indentation or bumps, due to… whatever: irregularities of the field, or centrifugal force or anything else? Or is it a perfect, perfectly smooth sphere? submitted by /u/stefanomsala [link] [comments] |
| What is the active ingredient in deodorant that prevents odor? Posted: 21 May 2022 04:08 AM PDT I'll preface this with saying not antiperspirant, deodorant. Antiperspirant contains aluminum to stop sweat, I'm specifically asking about the antibacterial ingredient in deodorant which prevents bacteria from making odor as a by-product. Everywhere online says triclosan, but I haven't seen that in deodorant for years now, as well as many cosmetic products. I know deodorants contain perfumes that add scent, but that's not what I'm asking either. What's actually preventing the skunky BO smell that results from bacteria eating the contents of your eccrine sweat gland sweat? Every website, and even scientific journals and peer reviewed papers just seem to parrot the same thing—confusing deodorant with antiperspirant, and aluminum or triclosan. An example of dove mens deodorant ingredients submitted by /u/72012122014 [link] [comments] |
| When early astronomers (circa. 1500-1570) looked up at the night sky with primitive telescopes, how far away did they think the planets were in relation to us? Posted: 19 May 2022 09:21 PM PDT |
| How does consent for randomized drug trials actually work? Posted: 21 May 2022 07:17 AM PDT I am reading The emperor of all maladies, which is basically a biography of cancer (great book btw) and they are currently at the stage in the 60s and 70s where chemotherapy is in its infancy. As an example a chemo therapist just recruited 1800 women to partake in a study where half receive an anti estrogen drug after receiving a mastectomy, while the other half doesn't. They are all early stage patients as well, not stage 4, "I'm desperate I'll try anything" patients. How does the consent for that work? Is it random who receives the drug and who doesn't? Do patients have to consent to receive the drug or do they just consent to the trial not knowing if they will get it or not? There also seems to be ethical questions re: who receives the drug and who doesn't? Any help understanding this is appreciated! submitted by /u/tayims [link] [comments] |
| Is it possible to replace skin with something that's not skin? Posted: 20 May 2022 10:39 PM PDT Multiple ideas in mind. I know there's skin grafts which are supposed to.. just be similar to skin or something? Actually I do need to look up more stuff about skin grafts but that's not really what I was wondering. I was kind of thinking about cyberpunk 2077. There's some characters that have their skin in certain areas replaced with other colorful materials, like plastic, or one person with a shiny metallic material all over her body. I was wondering if it would be possible to replace a section of skin with something else for cosmetic purposes. Like a rubbery plasticity material. Idk if I'm explaining this well submitted by /u/thapenguino [link] [comments] |
| By adding wood chip/particles to water and freeze it you get super hard ice. Can you do this to concrete as well or will the wood break down? Posted: 21 May 2022 05:28 AM PDT In Sweden we are building more several floor buildings with wooden beams instead of steel and concrete for apartments because it's seen as being more environmentally friendly as wood binds carbon and concrete production releases copious amounts of carbon dioxide. 1/5 of sweden's carbon emissions comes from the building industry. submitted by /u/Contribution_Fancy [link] [comments] |
| Does an octopus favor a tentacle in the same way that a human favors a hand? Posted: 20 May 2022 02:25 PM PDT |
| If you are vaccinated for something, and someone receives a blood donation from you, are they even to a small extent also effectively vaccinated against that thing? Posted: 20 May 2022 09:43 PM PDT I remember hearing something in passing a while ago about how historically some colonial power shipped orphaned children who had survived some disease (in the vain of smallpox or malaria) to their colonies to transfuse blood with settlers to "vaccinate" them. I've started looking into donating blood myself, and was wondering if this were true or feasible, are there protocols anywhere in the world for anti-vax recipients to refuse blood transfusions from a vaccinated donor? I remember learning in high school that memory cells in the blood are what maintain our gained immunity to pathogens following an immune response to infection. I guess I'm double-checking that knowledge and wondering if those memory cells and whatever else is required for gained immunity are transferrable by blood donation, or if the recipient's body will reject the donor's white blood cells and just leave the RBCs? Thanks in advance submitted by /u/beacheytunez_ [link] [comments] |
