If every cell in the human skin is replaced every couple of years, why don't scars heal? |
- If every cell in the human skin is replaced every couple of years, why don't scars heal?
- What causes the sensation of “wet”?
- During a heart transplant surgery, how long does the patient remain without a heart and how is he kept alive?
- How did scientists know what materials to use for the space suits before ever going into space?
- How long does it generally take to charge the capacitors people use for things like petawatt lasers?
- How was floating point arithmetic handled in older computers/procssors that didn't have FPUs or Math Co-Processors?
- Why does a tomate lose its acidity after being boiled?
- How did eutherian mammals migrate to other continents (specifically North America)?
- How exactly can we tell if other planets have water or water vapor in their atmosphere?
- How does sex-determination work in Cnidaria?
- Since water can boil if you create a vacuum around it. Would it freeze if you applied enough pressure? If not, why not?
- Is glycolysis pressure sensitivite?
- How does a red dwarf star die?
- Air injected directly into your blood stream can be lethal. How does your body not get air inside your blood vessels when you bleed?
- Why does bubbles form when water boils?
- Could you multiply two floating point numbers using a quantum computer in constant time?
- Can any other gasses create "fire" like oxygen?
- The leading causes of death in old age are heart diseases, cancer, chronic lower repository diseases, etc. My question is, how does the death process actually occur?
- How can wild animals drink unclean water and not get violently ill?
| If every cell in the human skin is replaced every couple of years, why don't scars heal? Posted: 14 Sep 2019 02:04 PM PDT |
| What causes the sensation of “wet”? Posted: 14 Sep 2019 03:06 PM PDT I was working at my lab in my university, and was still wearing my gloves as I was washing some stuff. As soon as the water hit my hand I felt like I got wet, but when I took off my gloves my hands were completely dry - no water went through the glove to my skin. So this caused me to wonder what exactly happened that the brain translated to "wet"? [link] [comments]  |
| Posted: 14 Sep 2019 02:21 PM PDT |
| How did scientists know what materials to use for the space suits before ever going into space? Posted: 14 Sep 2019 04:01 PM PDT I've been watching a lot of astronaut stuff lately and ive always wondered how they knew exactly what to use for the astronaut suits [link] [comments]  |
| How long does it generally take to charge the capacitors people use for things like petawatt lasers? Posted: 14 Sep 2019 09:33 AM PDT Physics might not be the right flair, I'm not sure. [link] [comments]  |
| Posted: 14 Sep 2019 07:10 PM PDT My guess is that they used some sort of floating point library that mimicked floating point math using the ALU to process the data. If so I would like to find out how these libraries were implemented. [link] [comments]  |
| Why does a tomate lose its acidity after being boiled? Posted: 14 Sep 2019 11:26 AM PDT |
| How did eutherian mammals migrate to other continents (specifically North America)? Posted: 14 Sep 2019 02:56 PM PDT As far as I am aware, the earliest eutherian mammal fossils were found in China, and date back to the late Jurassic (Juramaia). How did they manage to migrate to the other continents around the world, specifically North America, where it is my understanding that the earliest plesiadapiforms evolved in the late Cretaceous (Purgatorius)? Weren't there oceans in the way to inhibit this kind of migration? [link] [comments]  |
| How exactly can we tell if other planets have water or water vapor in their atmosphere? Posted: 14 Sep 2019 12:49 PM PDT I understand the basic principle of measure the dip in light waves when a planet passes between its star and us but I don't understand how from that information you can determine if there is any form of water. [link] [comments]  |
| How does sex-determination work in Cnidaria? Posted: 14 Sep 2019 08:52 AM PDT In mammals, the sex is determined by X and Y chromossomes: XX is female and XY is male. The mother provides one X chromossome, and the father provides a Y or second X. But how does it work in Cnidarians, since some of them are dioecious? [link] [comments]  |
| Posted: 14 Sep 2019 09:50 AM PDT |
| Is glycolysis pressure sensitivite? Posted: 14 Sep 2019 08:47 AM PDT Glucose is basically split in half during glycolysis, (forming DHAP and G3P). According to le Chatelier's principle this reaction is pressure sensitive, shifting the equilibrium towards the Educt with rising pressure. [link] [comments]  |
| How does a red dwarf star die? Posted: 14 Sep 2019 12:44 PM PDT I know it lives for trillions of years but how does its final days look like? [link] [comments]  |
| Posted: 14 Sep 2019 02:02 PM PDT |
| Why does bubbles form when water boils? Posted: 14 Sep 2019 05:30 AM PDT |
| Could you multiply two floating point numbers using a quantum computer in constant time? Posted: 14 Sep 2019 11:53 AM PDT From what I understand, you can massively parallelize computations on arrays of values using quantum computers, doing some clever math at each end of the array to determine what each state is at any given time. It seems to me that that means you can execute floating point operations very efficiently that way. If not, could you explain what effect quantum computing has on FLOP's as opposed to classical computers? [link] [comments]  |
| Can any other gasses create "fire" like oxygen? Posted: 14 Sep 2019 02:42 AM PDT On other planets, perhaps, or even experimentally in a laboratory, can any other gas be used in place of oxygen in fires? [link] [comments]  |
| Posted: 14 Sep 2019 12:03 AM PDT I get that your cells lose their ability to function efficiently and your body succumbs from a disease that is directly correlated to "old aging". How does it actually happen, though? Like, do your organs start shutting down first (how exactly does that happen)? Do you slip into a comma/unconsciousness? Specifically with old patients, at what point does the medical staff decide "at X given point, it's in the patients best interest not to resuscitate?" Are there any other interesting aspects that go along with it? I'm very much curious because my grandpa passed away today and I've been thinking about all that nitty gritty stuff. I'm very detail oriented so I just love knowing how and why things happen the way they do. Thank you, in advance! [link] [comments]  |
| How can wild animals drink unclean water and not get violently ill? Posted: 13 Sep 2019 06:28 PM PDT |
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