In space, two pieces of metal of the same type will "cold weld" if they touch. Why does this happen, and what do space agencies do to avoid or prevent this? |
- In space, two pieces of metal of the same type will "cold weld" if they touch. Why does this happen, and what do space agencies do to avoid or prevent this?
- AskScience AMA Series: We're marine scientists exploring the deep sea off Cabo Verde sailing on board the iMirabilis2 cruise. Ask us Anything!
- Why are the mirrors of the James Webb telescope yellow?
- Does exposure to COVID-19 after vaccination extend the immunity received from the vaccine?
- When the LHC first started the beams had 3.5TeV per beam but the heaviest particle discovered is 173GeV. Since they're upgrading, does that mean no new particles have been found between 173GeV and 7TeV?
- Are there any patents on the covid vaccine or are all companies sharing "open source" tech at this point?
- What happens when you blue shift into a gamma ray so much that it should turn into a particle anti particle pair?
- Are venomous snakes born venomous?
- How much similar (or dissimilar) is the mechanism of "immunity - development" in the human body, caused via a 'natural infection' and an 'whole-virus type Inactivated vaccine'?
- Arc length: linear vs curved ?
- How do kernel programmers access software interrupts while writing code in C?
- Can cold temperature negatively affect a magnets strength/performance? If so how? Are those effects permanent?
- Are there any other pairs of diseases like sickle cell and malaria that have unexpected positive interactions?
- Do vaccines (in general) weaken your immune system for the days that your body is building antibodies?
- Does the coronavirus that causes COVID-19 have an isocahedral shape?
- How can we have anti-A and anti-B antibodies at birth (depending on our own blood type) but Rh- folks only develop anti-Rh antibodies after exposure?
- How do anticonvulsants work?
- What's the difference between a "regular" and a "massive" heart attack?
- I recently moved to Utah and was wondering why Lone Peak looks like it was smacked by a meteor? It looks like it has a giant crater!
| Posted: 26 Aug 2021 05:24 PM PDT |
| Posted: 27 Aug 2021 04:00 AM PDT We are a team of scientists and technicians sailing on board the Spanish research vessel Sarmiento de Gamboa on a four-week cruise to explore Cabo Verde's deep sea ecosystems. On board we have the remotely operated vehicle (ROV), Luso, the autonomous underwater vehicle (AUV) Autosub6000, three benthic landers (a respirometer, baited camera, and baited trap), a multibeam bathymetry system, box corer, multicorer, a conductivity-temperature- depth (CTD) system, and the newly developed environmental DNA (eDNA) sampler named RoCSI (Robotic Cartridge Sampling Instrument). During the cruise we have used all this equipment to explore the deep sea through mapping, imaging, and sampling the seafloor and water column. We've seen cold-water corals, sponges, fish, sea cucumbers, anemones, mud and rocky substrate! This cruise is part of the EU Horizon 2020 project iAtlantic. You can read all about the cruise on our expedition website where you can meet the team, learn about our scientific missions and equipment on board as well as catch up with the latest news at the expedition blog. You can also follow us on Twitter, Facebook, and Instagram. We will be here from 17:00-19:00 UTC (1-3 PM ET) to answer your questions about scientific cruises, the deep sea, and ocean exploration. Username: /u/iAtlanticEU [link] [comments]  |
| Why are the mirrors of the James Webb telescope yellow? Posted: 26 Aug 2021 08:02 AM PDT |
| Does exposure to COVID-19 after vaccination extend the immunity received from the vaccine? Posted: 27 Aug 2021 06:39 AM PDT From what I understand, the immunity provided by vaccination lessens over time which is why a booster shot is going to be offered (at least for Pfizer). However, if a person who is vaccinated were to begin going out to public places a short time after receiving the vaccine in such a way that they are regularly exposed to the virus but not necessarily infected, would this preserve the immunity received from the vaccine? [link] [comments]  |
| Posted: 27 Aug 2021 04:13 AM PDT |
| Posted: 26 Aug 2021 06:16 PM PDT |
| Posted: 26 Aug 2021 05:05 PM PDT I was wondering what would happen in a scenario like this. Once a photon gets enough energy it turns into a matter antimatter particle pair, and when you move in the direction of something that ejected a photon, that photon blue shifts for you to keep the speed of light constant, gaining energy. So what would happen? How could it be a particle pair relative to you, but a photon to an outside observer? [link] [comments]  |
| Are venomous snakes born venomous? Posted: 26 Aug 2021 02:09 PM PDT I was wondering if a newly hatched cobra would be venomous, or does it take time. Do they need their fangs to form first? Do they become venomous after going through snake puberty? [link] [comments]  |
| Posted: 27 Aug 2021 12:08 AM PDT |
| Arc length: linear vs curved ? Posted: 26 Aug 2021 02:08 PM PDT Regarding the Crinkle crankle wall,
If I consider a brick wall ranging from
--- Curiosity, driven by a simple problem coupled with insightful discussions on math stack exchange. P.S I really wanted to typeset math here, but I am struggling to do so... Thank you [link] [comments]  |
| How do kernel programmers access software interrupts while writing code in C? Posted: 26 Aug 2021 06:56 PM PDT Additionally, is there any mechanism in place to prevent someone from writing an ordinary program that, when compiled and run in user mode, prevents it from hijacking this same functionality and entering kernel mode? [link] [comments]  |
| Posted: 26 Aug 2021 03:08 PM PDT Hi all! I just found this site, that states Ferrite-Magnets must not get colder than -40 C. I can't find any explanation for this online. One site I found briefly mentioned something about electron spins being affected at low temperatures, weakening magnets, but that's all I could find. I understand how heat affects them, at least good enough to be content, but I can't wrap my head around how cold could have a negative effect. Thanks for anyone wo read my question and thanks in advance for any answers. [link] [comments]  |
| Posted: 26 Aug 2021 07:57 AM PDT "Positive" for lack of a better word, I realize sickle cell is a horrible disease to have that kills infants and young children but confers some resistance to malaria. Are there any other genetic problems or diseases that end up helping against other diseases? [link] [comments]  |
| Posted: 26 Aug 2021 08:56 AM PDT This has nothing to do with the big C, just a question. What I mean is, is it easier to catch a cold etc. the days after a vaccine? [link] [comments]  |
| Does the coronavirus that causes COVID-19 have an isocahedral shape? Posted: 26 Aug 2021 09:21 PM PDT |
| Posted: 26 Aug 2021 09:48 AM PDT |
| Posted: 26 Aug 2021 04:04 AM PDT I was wondering if someone could explain how medications function to stop seizures. Take for instance benzodiazepines such as Ativan and Midazolam. Do they work by slowing or stopping the seizing process in the actively convulsing body or is it that it slows down or stops the wonky misfiring in the brain that causes the body to have convulsions? Thanks so much :) An always curious ER nurse [link] [comments]  |
| What's the difference between a "regular" and a "massive" heart attack? Posted: 26 Aug 2021 01:46 AM PDT |
| Posted: 26 Aug 2021 12:02 AM PDT |
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