How deep is the Sahara deserts sand, and what's at the bottom of the sand? |
- How deep is the Sahara deserts sand, and what's at the bottom of the sand?
- Does sweat wicking fabric really exist? Or is this simply marketing, and an inherant trait of any fabric due to capillary action?
- absolute zero is the coldest temperature. is there a hottest temperature?
- How do components of the immune system move towards foreign invaders?
- Is there a physical Limitation on how dense we can store data on a HDD Platter?
- Do antibodies recover after long periods of extreme stress have ended ("recovery immunity")?
- What is the mechanism behind mie scattering in pores with similar diameters to wavelengths?
- Since combining waves can by constructive interference amplify amplitudes, is it also possible to amplify (create higher) frequencies by combining beams or simmilar?
- What are eye floaters?
- How do topical medications like Advantage Multi get rid of internal parasites?
- Is deep cycling a Lithium Ion battery worse than keeping it at 100%?
| How deep is the Sahara deserts sand, and what's at the bottom of the sand? Posted: 05 Nov 2021 01:45 PM PDT Like is it a solid bedrock kind of surface, or is it a gradient where the sand gets courser and courser until it's bedrock? [link] [comments]  |
| Posted: 05 Nov 2021 08:30 AM PDT |
| absolute zero is the coldest temperature. is there a hottest temperature? Posted: 05 Nov 2021 08:17 AM PDT My science teacher in high school said this was a stupid question I asked him. This was 25 years ago. I remember. [link] [comments]  |
| How do components of the immune system move towards foreign invaders? Posted: 05 Nov 2021 11:04 AM PDT Is there a chemical pathway behind how leukocytes are able to move to where they need to go? For example, when skin is broken, the leukocytes in the area know to aggregate at the injured tissue. Or when bacteria invade, immune cells all over the body know to go towards the invader to kill it. I understand that there are certain ways that the immune system differentiates between bacteria and body cells, and that those differences are able to "signal" the immune system to destroy it. But I have a hard time wrapping my head around how a cell detects a far off disturbance (or antigens), and orients itself to move in that direction. How are they able to do this? An explanation based in chemistry/biochemistry would be preferred, but biological mechanisms are so complex that I understand if a chemical explanation is too complicated to explain. [link] [comments]  |
| Is there a physical Limitation on how dense we can store data on a HDD Platter? Posted: 05 Nov 2021 05:48 PM PDT Ok, from my understanding, correct me if im wrong, we are currently reaching the physical limitation of cpu transistors. But what about good old HDD's? They seem to manage to cram more and more data onto 1 platter, but is there a phyical limitation on how much information we can store on 1 platter? [link] [comments]  |
| Do antibodies recover after long periods of extreme stress have ended ("recovery immunity")? Posted: 05 Nov 2021 07:25 AM PDT I have read that after vaccination or infection, there is a decrease in neutralizing antibodies (what I saw referred to as humoral immunity) after extreme stress. The paper on it I found referred to something called "immunity recovery." But the paper said it was not aware whether antibodies returned after a period of extreme stress. So my question is, if you were to get COVID or get vaccinated for COVID then have an extended period of seriously extreme day-in, day-out stress, but then recovered from the stress, would your body start making neutralizing antibodies again or does the stress kill them off permanently? To clarify, this is referring to periods of extreme, long-term stress and the aftermath. Short-term stress from what I read appears to improve immune response. [link] [comments]  |
| What is the mechanism behind mie scattering in pores with similar diameters to wavelengths? Posted: 05 Nov 2021 03:59 PM PDT In porous materials, if the pores of the material have diameters roughly equivalent to that of the light waves entering into the material, the light will mie scatter and reflect away from that porous material. My question is (without a lot of math) what is the mechanism exactly that causes the pore diameter to have this influence for mie scattering? I know a bit about quantum electrodynamic reflection off of two interfaces (like an oil slick) and I'm wondering if something similar happens when the pores are the size of the wavelength. How does the pore diameter related to the lights interference to cause reflection/scattering? [link] [comments]  |
| Posted: 05 Nov 2021 07:43 AM PDT |
| Posted: 05 Nov 2021 06:08 AM PDT |
| How do topical medications like Advantage Multi get rid of internal parasites? Posted: 05 Nov 2021 04:06 PM PDT |
| Is deep cycling a Lithium Ion battery worse than keeping it at 100%? Posted: 04 Nov 2021 08:35 AM PDT I recently got a new phone, and its battery lasts around two days. I'm trying to maximize the lifespan of the battery, so is it better to charge it every night (going from around 50-100% daily) or every other night (going from around 20-100%, but half as often?) [link] [comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment