If skin from one area of the body is used to repair a wound elsewhere, what happens to the area where the skin was taken from? |
- If skin from one area of the body is used to repair a wound elsewhere, what happens to the area where the skin was taken from?
- What causes shockwaves to form on an airfoil when the airflow is supersonic? Why does this cause flow separation?
- How does dehydration kill you?
- What is the functional reason as to why some leaves are serrated or have different types of margins?
- Is it possible for plants to survive in continuous light?
- Why are flu vaccines limited to only 3 or 4 strains? Why not compound them from year to year so young people are protected against previous strains?
- Could enough of something with a low pH dissolve anything?
- Is elastic collision only possible for perfectly rigid bodies?
- What happens when a Weak D blood transfusion recipient receives RH + blood?
- Why do psychiatric medications take so long to become fully effective (six weeks), while many other medications work within minutes or hours?
- Can a planet have a core made of diamond?
- On the topic of vacuum cleaner's: How does hose diameter affect suction?
- As sea levels are rising, are we recalculating heights of mountains?
- What is the cause of « natural death »?
- Do bugs and other animals with really short life spans evolve faster?
| Posted: 03 Jan 2020 07:52 PM PST Sorry for the confusing wording, but I was just reading about a man who had skin cancer removed from his back, and skin from his thigh was used to repair the area on his back. Which made me wonder, then what happens to his thigh? Doesn't that just leave a similar wound in a different place? [link] [comments]  |
| Posted: 03 Jan 2020 11:10 PM PST |
| How does dehydration kill you? Posted: 03 Jan 2020 03:06 PM PST Particularly dehydration from not drinking water. I'm not asking about hypovolemia due to hemorrhage, burns, diarrhoea, vomitting or other factors. I'm aware that dehydration disrupts a plethora of biological processes which leads to a variety of things going wrong in our body. But there must be one (or perhaps a few?) factor(s) that eventually lead to death. I have a vague memory in my mind that it's because of hyponatremia, but that doesn't make much sense. We only lose sodium through our sweat and can replenish it from food, which means if we avoid an environment that causes us to sweat and eat enough, that'll prolongue our chances of surviving without watter. Sounds ridiculous. Hypernatremia makes more sense. If we don't drink water, we lose water content while our sodium stays relatively the same (we lose some through sweat, but sweat is quite low in sodium and we would lose more water than sodium anyways). High blood sodium concentrations would obviously dehydrate our cells osmotically as well as disrupt CNS action potentials. [link] [comments]  |
| What is the functional reason as to why some leaves are serrated or have different types of margins? Posted: 04 Jan 2020 04:24 AM PST |
| Is it possible for plants to survive in continuous light? Posted: 03 Jan 2020 06:14 PM PST Or do they require a darkness period? If so what is the reason? [link] [comments]  |
| Posted: 03 Jan 2020 07:40 PM PST |
| Could enough of something with a low pH dissolve anything? Posted: 03 Jan 2020 08:48 PM PST |
| Is elastic collision only possible for perfectly rigid bodies? Posted: 03 Jan 2020 06:59 PM PST My thinking was that during a typical collision between non-rigid objects that occupy some volume, the leading edges remain stuck together and in contact until the information that a collision has occured spreads to the entire object while it deforms and the object returns to its original shape after the information has traveled again from the opposite ends of each object to the colliding edges that the objects have finished exchanging momentum. During that entire timeframe, the objects are stuck together as the information travels and the objects deform. With that in mind though, I was thinking that maybe the time where the objects are stuck together is avoided in perfectly rigid objects where the entire body instantly reacts to the collision, and thus it's an elastic collision. [link] [comments]  |
| What happens when a Weak D blood transfusion recipient receives RH + blood? Posted: 03 Jan 2020 05:54 PM PST |
| Posted: 02 Jan 2020 10:21 PM PST |
| Can a planet have a core made of diamond? Posted: 03 Jan 2020 05:29 AM PST I know that there can be a lot of pressure in the core of a planet, but can that pressure make a diamond? I think that if there was enough carbon in the core that it could compress to make a diamond, but would a planet like this (assuming it is rocky) be able to have life on it or be habitable? [link] [comments]  |
| On the topic of vacuum cleaner's: How does hose diameter affect suction? Posted: 03 Jan 2020 08:54 AM PST I'm perusing the selection of vacuum hoses and trying to find out the loss of suction that would occur in a 2-1/2" hose over a 1-1/4" hose. Both hoses for this example would be the same length, material, and be utilized with the same vacuum. [link] [comments]  |
| As sea levels are rising, are we recalculating heights of mountains? Posted: 02 Jan 2020 11:58 PM PST Right now the change is not that big, but if a sea level rises, for example, 20 meters, are going to reduce the height of every mountain for 20 meters? [link] [comments]  |
| What is the cause of « natural death »? Posted: 02 Jan 2020 08:34 PM PST Hello to you all! I have always been wondering what do people die of when they are dead of « natural causes »? For example when someone dies in his sleep. Is it that his brain just stops working? Does he have a heart failure? Maybe another organ? Does the brain « forgets » to do something vital? Or maybe your body is just too weak and you die of disease? Or is just a combination of different problems? I really don't know and I would love someone to enlighten me [link] [comments]  |
| Do bugs and other animals with really short life spans evolve faster? Posted: 03 Jan 2020 07:07 AM PST |
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