AskScience AMA Series: We are NASA scientists looking for volunteers to do real science with us. Ask us anything about NASA's Citizen Science projects and why you should join! |
- AskScience AMA Series: We are NASA scientists looking for volunteers to do real science with us. Ask us anything about NASA's Citizen Science projects and why you should join!
- What is the starchy part of a potato actually used for and is it alive?
- How long does it take to get "un-used" to a smell you've become nose-blind to?
- Three years out from this article on insulin resistance and statins, how is it holding up?
- What do psychiatrists aim for, when treating a patient?
- What is the largest single cell identified?
- Why is Austenitic Steel (FCC) Non-Ferromagnetic?
- Are stars stars? Or are they galaxies in the nightsky?
- What mammal is least related to all other mammals?
- Can awake, spontaneously breathing patients on ECMO hold their breath indefinitely?
- What does the math look like when calculating how much force it takes to crush a full soup can with a force coaxial with the can?
- The difference between Atlantic ocean water and Mediterranean sea water is gradual? Or is it immediately visible at the left and right of the strait of Gibraltar?
- What happens to cell organelles during meiosis? Are they quadri-replicated in G1 like in mitosis?
- When a galaxy is born, what dictates it's rotation's direction?
- Can doctors pinpoint how long the body has been producing antibodies to combat the virus?
- Is the likelihood of going bankrupt higher for people who have filed for it before?
- Why do metal ions like calcium get released from calcium oxalate when boiled?
- Is it more difficult for a virus to mutate if the host is healthy?
- What happen under the carbonate compensation depth?
- How can a phone's camera adapt to the difference of refraction in the glasses lenses? (Picture included)
- Can you help me understand Laplace transform and the frequency interpretation of a signal?
- Is there a way to separate DNA and amino acid molecules by charge?
| Posted: 22 May 2020 04:00 AM PDT You can do real NASA science right now, from your own home. Just join one of NASA's citizen science projects! From projects designed to study our planet's biodiversity, to studying the sun, comets, and finding planets outside of our solar system, our citizen science projects harness the collective strength of the public to analyze data and conduct scientific research. NASA-funded citizen science projects have engaged roughly 1.5 million volunteers and resulted in thousands of scientific discoveries and numerous scientific publications. For information on current our citizen science projects, visit https://science.nasa.gov/citizenscience. Most projects require no prior knowledge, experience, or special tools beyond a computer or cell phone. And don't worry if you didn't study science in school; these projects aim to teach you everything you need to know. We are here to answer your questions! Ask us about:
We'll be online from 1-3 p.m. EST (10 am to noon. PST, 20:00-22:00 UTC) to answer all your questions! Participants
Username: NASA [link] [comments]  |
| What is the starchy part of a potato actually used for and is it alive? Posted: 21 May 2020 02:14 PM PDT The key question I have is, specifically, whether the starchy interior (the vaguely white/manilla colored bit) is full of living cells performing a function or if it's just a collection of sustenance used by the actually living parts of the plant. In either case, how does a potato actually make use of the starchy substance? [link] [comments]  |
| How long does it take to get "un-used" to a smell you've become nose-blind to? Posted: 22 May 2020 03:42 AM PDT When you spend enough time with someone, or in a place, you start to loose the ability to notice the associated smells. How long would you have to avoid the smell to be able to enjoy it again? Does it depend on how long you've been used to it? [link] [comments]  |
| Three years out from this article on insulin resistance and statins, how is it holding up? Posted: 22 May 2020 05:49 AM PDT |
| What do psychiatrists aim for, when treating a patient? Posted: 22 May 2020 07:16 AM PDT As in, is there an equivalent of homeostasis for the mind? [link] [comments]  |
| What is the largest single cell identified? Posted: 22 May 2020 05:45 AM PDT Came up in thought while cooking eggs, which lead to thinking about ostrich eggs... [link] [comments]  |
| Why is Austenitic Steel (FCC) Non-Ferromagnetic? Posted: 22 May 2020 04:25 AM PDT I know carbon steel has a Curie point near the austenitic transformation temperature, so I always thought that high temperature steel lost its ferromagnetism because the thermal energy kept re-orienting Weiss domains so they can't properly align. The blacksmith trick of using a magnet to tell if steel is austenitic is just a guess, because carbon steel actually reaches its Curie temperature a bit before the austentic transformation temperature. I didn't realize until recently that room temperature austenitic steel (stainless steel) is also not ferromagnetic. My first thought was that this was somehow due to crystal structure (some symmetry operation in FCC that forbids ferromagnetism?) but that doesn't work because there are other examples of FCC metals that exhibit ferromagnetism, like Ni or Co alloys. My next thought was that Weiss domains in FCC might get thermally misaligned more easily, so perhaps the Curie temperature would be decreased in FCC metals, and Ni could stay ferromagnetic because it had a Curie temperature above 300K. However, Ni has a smaller magnetic moment per atom and a lower melting temperature (than iron or stainless steel), so assuming Curie temperatures occur at roughly the same homologous temperature, Ni should have a lower Curie temperature (it does have a lower Curie temperature than BCC iron). That leaves me with no explanation for why steel loses its ferromagnetism upon becoming FCC. Does anyone have any ideas? [link] [comments]  |
| Are stars stars? Or are they galaxies in the nightsky? Posted: 22 May 2020 03:52 AM PDT I want to know what we see when we 'look out at the stars'. Are they actual stars/suns or are they galaxies (but we just use an ancient nickname - stars)? And i do not take in to account the milky way stars that are legit stars. Pass on them. [link] [comments]  |
| What mammal is least related to all other mammals? Posted: 22 May 2020 12:24 AM PDT That might have been a bad way of phrasing the question but basically you know how all animals have a closest living relative and that broader group will be closely related to a similar broader group so on and so forth but what mammal or even group of mammals is the most distant from all other living groups [link] [comments]  |
| Can awake, spontaneously breathing patients on ECMO hold their breath indefinitely? Posted: 21 May 2020 10:50 PM PDT So my 34 year old sister recently suffered a dissected aorta. After a successful surgery and failed mechanical ventilation, it appears she has probably slipped into ARDS and is now requiring ECMO. I'm a CCU nurse but I've never done open heart, mostly Neuro and trauma. I've never even seen ECMO, as only a few hospitals in my state have that capability. But I'm familiar enough to know a bit about how it works, but I can't stop thinking about this question. Since a machine is removing the blood and filtering CO2 and adding oxygen, then pumping it back in, could an awake, spontaneously breathing patient simply hold their breath indefinitely? I meant to ask the doctor today over the phone, but it slipped my mind. [link] [comments]  |
| Posted: 21 May 2020 11:02 PM PDT An empty one would typically be modeled as buckling or in some circumstances a cross section being compressed, but I don't know what to do with the liquid. Thanks! [link] [comments]  |
| Posted: 22 May 2020 05:59 AM PDT |
| What happens to cell organelles during meiosis? Are they quadri-replicated in G1 like in mitosis? Posted: 21 May 2020 09:49 PM PDT |
| When a galaxy is born, what dictates it's rotation's direction? Posted: 22 May 2020 01:25 AM PDT |
| Can doctors pinpoint how long the body has been producing antibodies to combat the virus? Posted: 21 May 2020 10:38 AM PDT And a supplementary question, say hypothetically I had the virus and I took the test and it came out positive would there be anyway of determining a date range of contraction if I didn't suffer any symptoms? [link] [comments]  |
| Is the likelihood of going bankrupt higher for people who have filed for it before? Posted: 22 May 2020 03:53 AM PDT If you file for bankruptcy once your chances of getting decent credit are screwed for years, even decades, because creditors treat you like a much much higher risk. I was wondering if there are any actual scientific studies proving that people who went bankrupt once are significantly more likely to go bankrupt again. Looked it up an couldn't find anything. I guess the methodology would be problematic because you need a sample of people who went bankrupt but had it erased from their history, to compare the outcomes reliabely. And keeping track of them for a long time. But anyways... Anyone aware of such data existing? [link] [comments]  |
| Why do metal ions like calcium get released from calcium oxalate when boiled? Posted: 21 May 2020 11:23 PM PDT I'm writing an investigation on how boiling vegetables affect the calcium loss. I came across a few articles that says calcium exists as calcium oxalate, and when it's boiled the bonds between calcium oxalate breaks and the calcium ions are leached into the water. I'm struggling to find any information on the mechanism behind this as in how this actually works. Can someone direct me to any sources or explanations on this process? [link] [comments]  |
| Is it more difficult for a virus to mutate if the host is healthy? Posted: 21 May 2020 07:31 PM PDT Friends and I got into an argument about this. My take is that the virus will simply mutate without regard to the immune system of the host. Their argument is that if the virus infects healthy people without infecting those who are immunocompromised or overall unhealthy, the virus becomes weaker and weaker. Can someone clear this up? It's difficult to find an answer. [link] [comments]  |
| What happen under the carbonate compensation depth? Posted: 22 May 2020 03:00 AM PDT Hello! I'm currently learning again my geology lesson, and I'm on the ccd right now. But I'm wondering, when the lithospheric plate goes under the ccd, does the carbonate sediments put in place before starts to disapper, or do they stays? It's not clear in my lesson... Thank you for your help! And sorry for the mistakes, I understand English better than I write it... [link] [comments]  |
| Posted: 22 May 2020 02:52 AM PDT How is it possible that the image seen through the camera is clear, even though the glasses have minus five (-5) diopters? Also, the image around the lens is how a person with -5 actually sees. How can the phone do that? [link] [comments]  |
| Can you help me understand Laplace transform and the frequency interpretation of a signal? Posted: 21 May 2020 02:28 PM PDT I have studied all the facts regarding the subject (really cool part of maths) but I cant visualize the practical meaning of this. For what I see, when you decompose a signal in an infinite sum of sines and cosines (even dilated or shrinked) you are giving each frequency a "weight" or a "share" on the total signal. What does it mean to filter a signal? Will it remove the "low" sinuisoids and cosinusoids? [link] [comments]  |
| Is there a way to separate DNA and amino acid molecules by charge? Posted: 21 May 2020 06:04 PM PDT For example, is there a gel electrophoresis method for molecule charge instead of molecule size? Is there a neutral gel buffer that doesn't ionize molecules? [link] [comments]  |
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