Is there a body part/reaction in the body that works better in old age (70+) compared to young people? |
- Is there a body part/reaction in the body that works better in old age (70+) compared to young people?
- We all know that gaining weight can be attributed to excessive caloric intake, but how fast does weight gain actually happen? Can we gain a pound or two in fat content over night? Does it take 24 hours for this pound or two to build up?
- What happens to the body exactly if someone is given a transfusion of the wrong blood type?
- What advantage does the eye's (or brain's) white-balance-like system give, and how does it work?
- Why is it covid coming in waves?
- What caused this ring of flat land circling the end of the Appalachian range?
- Why do deep-sea divers use mixed gases?
- More than 80 % of the ocean has never been mapped, explored, or even seen by humans. How we could benefit from discovering our aquatic world?
- What is the basis for having a sense of rhythm?
- Why does the moon seem to have significantly more craters at the poles?
- How did the red fox evolve to remain largely the same species in North America as in Europe?
- If somatic cells can only divide up to the Hayflick limit, how do people live longer than a few decades?
- What allows animals with shorter life spans than humans (eg. Cats and dogs) to develop age related illnesses like arthritis and mental degradation in much shorter time spans?
- Death Valley is 282’ below sea level. Would it offset the rising ocean to build a canal and create the Death Valley Sea?
- is the infinite amount of numbers between 0 and 1 smaller than the infinite amount of numbers between 0 and 2?
- What would happen to a sealed tin can in space?
- How are foods/drinks analyzed for nutrition to be added to labels?
- What exactly are instincts ?
- Why does low blood pressure make you shaky?
- Are physical formulas like T=0.5*mv^2 literally that precise in reality or is it simplification? Why is it ^2 and not ^1.99999 or ^2.00001?
- Is there a public toxicological database detailing substances' adverse health effects?
- Is there any particular reason we ordered the human chromosome pairs the way we did?
- Do hearts vary a lot among vertebrates?
- Are there good case studies of neural net interpretation leading to novel scientific theory/insight?
- Do creamer pitchers slow the growth of microbes in milk?
| Posted: 26 Jun 2022 07:12 AM PDT I've been reading about aging and all its negatives, are there some things, that get better with age? I'm not talking about getting experience and getting more knowledgable, but rather physiological functions. [link] [comments] |
| Posted: 25 Jun 2022 05:10 PM PDT |
| What happens to the body exactly if someone is given a transfusion of the wrong blood type? Posted: 25 Jun 2022 05:34 PM PDT Hello! I read a case recently where a young girl was given a lung and heart transplant, except the transplanted organs were of a completely wrong blood type then the patient. I was wondering what exactly happens if someone it given a pint (or more) of the wrong type of blood. And to step it up a notch further, what would happen to the body if all the blood in the body were to become a different type? Would the affect change with one blood type over another? Thanks for your responses in advance. [link] [comments] |
| What advantage does the eye's (or brain's) white-balance-like system give, and how does it work? Posted: 25 Jun 2022 08:54 AM PDT So I have noticed that when I close my right eye for a while and keep my left eye open in broad daylight, I see warmer colours in my left eye and see cooler colours in my right eye when I open it. This is similar to the white balance in smartphone cameras. But is there any evolutionary advantage to this? And how does it work? [link] [comments] |
| Why is it covid coming in waves? Posted: 26 Jun 2022 06:59 AM PDT Everyime covid seems or at least seems to be dying out, it to just explode again. I would of thought as a virus it would just be at a constant level of infection and not in surges? Is this now more or less like the common flu with itself having seasonal waves and on that note why does the flu have seasonal waves? Side note can we ever eradicate covid all together? [link] [comments] |
| What caused this ring of flat land circling the end of the Appalachian range? Posted: 26 Jun 2022 09:25 AM PDT From Corinth, Mississippi to Montgomery, Alabama, there is a large arc of flat land which stands out on satellite photos because it is mostly farms, surrounded by hilly, forested land. It seems to perfectly encircle the southern end of the Appalachian mountain range, suggesting it was somehow created when the mountain range formed. It's not a river valley because a few rivers seem to cross through it without following it. What is it? I've circled it here: https://i.redd.it/3ly4yk8flw791.png [link] [comments] |
| Why do deep-sea divers use mixed gases? Posted: 25 Jun 2022 07:34 PM PDT When I look this up I get the answer of "Gasses are greatly compressed underwater from the weight of all the water above, so while diving we are breathing compressed air" I understand this concept but isn't a tank of air a closed loop? How does the water on the outside of the tank compress gas if the metal itself is the same shape? Sorry if I'm missing something. Thanks. [link] [comments] |
| Posted: 26 Jun 2022 07:29 AM PDT Do you have some examples (in science, everyday life), how we could benefit from discovering our aquatic world? [link] [comments] |
| What is the basis for having a sense of rhythm? Posted: 25 Jun 2022 04:57 PM PDT It seems to be more involved than just good coordination. Has neuroscience ever studied it? [link] [comments] |
| Why does the moon seem to have significantly more craters at the poles? Posted: 25 Jun 2022 07:46 PM PDT |
| How did the red fox evolve to remain largely the same species in North America as in Europe? Posted: 25 Jun 2022 01:06 PM PDT |
| Posted: 25 Jun 2022 08:46 AM PDT I know not all cell types divide that frequently, but some like skin cells divide daily. It seems that it would not be that long before all skin cells have reached the Hayflick limit and eventually our skin will cease to function. Even if we replace skin cells with stem cells, I imagine that our source of stem cells is really limited. [link] [comments] |
| Posted: 25 Jun 2022 06:30 PM PDT For example a 15 year old dog may suffer from arthritis or dementia, but it would take an average human a way longer time to start developing those issues typically. [link] [comments] |
| Posted: 26 Jun 2022 09:49 AM PDT |
| Posted: 25 Jun 2022 09:17 PM PDT my sister and i are going back and forth about this and i'm interested who is right or if we both are. [link] [comments] |
| What would happen to a sealed tin can in space? Posted: 24 Jun 2022 01:46 PM PDT Would it explode? Is the metal strong enough to resist the pressure differential? Does it depend on the temperature? What if it were filled with water vs air at 1 atmosphere pressure? [link] [comments] |
| How are foods/drinks analyzed for nutrition to be added to labels? Posted: 25 Jun 2022 05:14 PM PDT |
| Posted: 25 Jun 2022 08:51 PM PDT It is a beavers instinct to build a dam, okay, but what does that MEAN!!?? Like what part of the brain just goes "BEAVER BUILD DAM!!" How does that work, how can a part of your brain encode for building dams. I am a computer engineer and I'm thinking of it like someone codes into beavers brain to build dam BUT HOW IS IT PHYSICSLLY CODED BC THIS IS A BEAVER NOT A COMPUTER !! [link] [comments] |
| Why does low blood pressure make you shaky? Posted: 25 Jun 2022 03:00 PM PDT Everything I can find is just listing shakiness as a symptom of low blood pressure, but what is actually happening at a cellular level that causes your muscles to not work as well? [link] [comments] |
| Posted: 25 Jun 2022 06:39 PM PDT Important formulas in physics often have very "easy" coefficients and exponents. They seem so elegant, when otherwise the universe seems full of chaos and side-effects. [link] [comments] |
| Is there a public toxicological database detailing substances' adverse health effects? Posted: 25 Jun 2022 04:28 AM PDT Similar to pharmacological databases where you can look up a certain medicament and handily find information on dose ranges, formulations, routes of administration, etc. is there an easily accessible toxicological database with detailed toxicological information for particular substances. I.e. known adverse health effects, dose-response relationships, etc.? [link] [comments] |
| Is there any particular reason we ordered the human chromosome pairs the way we did? Posted: 25 Jun 2022 04:57 PM PDT |
| Do hearts vary a lot among vertebrates? Posted: 24 Jun 2022 10:30 PM PDT I learned recently that mammalian four-chambered hearts are more efficient than reptilian three-chambered hearts. Are mammals special as far as hearts go? [link] [comments] |
| Are there good case studies of neural net interpretation leading to novel scientific theory/insight? Posted: 25 Jun 2022 06:56 PM PDT To clarify my question with a (semi) made up example: say we trained a DL model to take some input data to predict some outcome (eg. amino acid sequence to predict protein conformation). Say we also have very little idea how to relate the outcome to the predictors. Then we did some form of interpretability on the DL model and this led to novel theory/insight (eg. certain amino acid subsequences are highly likely to appear on the surface of the protein once it is folded). Are there good case studies of this sort of thing happening? Links to papers would be super appreciated. (Disclaimer: I know very little biochemistry so my example might be wrong/nonsense/known without DL) [link] [comments] |
| Do creamer pitchers slow the growth of microbes in milk? Posted: 25 Jun 2022 12:42 PM PDT I work at a coffee shop and we are discussing keeping half n half from one day to the next after it's been sitting in a container that's partially closed. I've always been told most foods start to develop microbial colonies after about 4 hours, so I don't think it's a great idea, even if it's in the fridge overnight. [link] [comments] |
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