Can you spray paint in space? |
- Can you spray paint in space?
- If all forms of elephant went extinct before we came to be, and all we had were fossils, could we figure out that they had long trunks?
- [agriculture] River flooding is that excellent for agriculture?
- Why don't sealed terrariums explode?
- Why are some cancers more prevalent in children than in adults?
- Why does rain (appear to) fall non-uniformly?
- I've been aware of wet bulb temp, with it's possible danger to mankind for a few years. I never considered it's impact on livestock. How critical is wet bulb temps when it comes to sheep and cattle?
- Could you fly a helicopter/drone on Enceladus?
- Are people with latex allergies allergic to latex house paint?
- If Radio Waves bounce off the ionosphere for communications, how can SETI hear anything through the ionosphere?
- Could the Quetzalcoatlus and other large Azhdarchid pterosaurs run after prey on land?
- Is opal glass? Do opal exibit glass transition when heated?
- Does the earth gain or lose solid surface area?
- Why is the humidity of the air above open ocean not 100%?
- what development do lungs undergo through between the end of puberty and the ages of 20-25?
- Does the Adenovirus remain dormant(Latent) in the system after initial infection?
- AskScience AMA Series: We just crunched the numbers on how the transition to a renewable-based future is progressing & we want to talk about it! Go ahead & ask us anything (we're renewable energy experts but we're up for any & all questions)!
- How do skin care products work? This is more of a science topic but r/science is only urls.
- Do milk alternatives (Soy, Almond, Oat, etc.) also increase your risk of prostate cancer like regular milk does?
- How much synaptogenesis takes place in the adult brain?
- How does turpentine/paint thinner/spirits cause the symptoms of oxygen deprivation?
- How do the current vaccines prevent severe illness and death against Omicron while showing “no antibody or T-cell recognition”?
- Could there ever be a situation where a poisonous/toxic creature could be harmed/killed by its own poisons/toxins?
- If you were on a submarine underneath the ice of Jupiter's moon: Europa. What would the gravity be like?
- [Organic Chemistry] Can reverse osmosis be used in live fermentation to remove alcohols as they form?
| Posted: 16 Jun 2022 06:57 AM PDT I like painting scifi/fantasy miniatures and for one of my projects I was thinking about how road/construction workers here on Earth often tag asphalt surfaces with markings where they believe pipes/cables or other utilities are. I was thinking of incorporating that into the design of the base of one of my miniatures (where I think it has an Apollo-retro meets Space-Roughneck kinda vibe) but then I wasn't entirely sure whether that's even physically plausible... Obviously cans pressurised for use here on Earth would probably explode or be dangerous in a vacuum - but could you make a canned spray paint for use in space, using less or a different propellant, or would it evaporate too quickly to be controllable? [link] [comments] |
| Posted: 15 Jun 2022 07:30 AM PDT |
| [agriculture] River flooding is that excellent for agriculture? Posted: 16 Jun 2022 05:39 AM PDT i hear this over and over again in media, tv, books, etc that river flooding is good for agriculture because it deposits sediment, but the flood dont wash away the topsoil? afaik rivers have plenty of sand and sand is not very good for agriculture because there is no water retention, do the sediment type differ from one river to another so in some cases can be good but it other case would do harm? thanks in advance note: there is no flair for agriculture so i picked biology [link] [comments] |
| Why don't sealed terrariums explode? Posted: 16 Jun 2022 07:43 AM PDT Is it balanced so perfectly that the oxygen released by the plants is utilised by microorganisms that in turn provide carbon dioxide and nitrogen/waste, which feeds the plants and the cycle restarts? I'd just imagine there being some offset that causes gas accumulation eventually causing the glass jar to explode. Especially when the animals within, snails and such, piggybacking on the plants I introduce, begin to breed? Similarly to when I did sauerkraut that one time and didn't provide a release valve đ How can these jars stay sealed for years with no mishap it's amazing! [link] [comments] |
| Why are some cancers more prevalent in children than in adults? Posted: 16 Jun 2022 09:36 AM PDT |
| Why does rain (appear to) fall non-uniformly? Posted: 16 Jun 2022 08:20 AM PDT When driving through extemely heavy rainfall, I noticed that rain appears to have roughly coherent torrents (or "streaks") of higher density (on the scale of meters). Why is that? Is it an optical illusion? The nature of pseudo-randomness (but then why would the "period" be as big as a meter)? Is it some sort of "oscillation" of wind? I don't think I've ever noticed this with regular rain, so maybe it happens only with very heavy rain? The doplets were definitely big. [link] [comments] |
| Posted: 16 Jun 2022 05:12 AM PDT I did some quick intertube research and found a vet manual showing sheep and cattle pretty much reach the danger zone from 29 to 33c.. and this map https://www.weather.gov/tsa/wbgt show wet bulb in the midwest exceeding this temp. this question was triggered by the 10k dead cattle in kansas headlines today. [link] [comments] |
| Could you fly a helicopter/drone on Enceladus? Posted: 16 Jun 2022 11:53 AM PDT With NASA's planned Orbilander going to Enceladus, could it host a small rotorcraft like Perseverance did with Ingenuity? I read it does have an atmosphere of water vapor. [link] [comments] |
| Are people with latex allergies allergic to latex house paint? Posted: 16 Jun 2022 05:25 AM PDT |
| Posted: 16 Jun 2022 11:05 AM PDT |
| Could the Quetzalcoatlus and other large Azhdarchid pterosaurs run after prey on land? Posted: 16 Jun 2022 12:04 PM PDT As many of you already know, the Quetzalcoatlus was the largest flying animal to have ever taken to the skies. According to Wikipedia, the Quetzalcoatlus was well adapted for the ground as well as the air. It says that the Quetzalcoatlus's main diet was smaller dinosaurs that it could pluck from the ground, akin to today's stork. However, there is one sentence that really caught my eye: "Though Quetzalcoatlus, like other pterosaurs, was a quadruped when on the ground, Quetzalcoatlus and other azhdarchids have fore and hind limb proportions more similar to modern running ungulate mammals than to their smaller cousins, implying that they were uniquely suited to a terrestrial lifestyle" The mention of Quetzalcoatlus's limb structures being similar to known running animals is really fascinating to me. Could a Quetzalcoatlus give chase to a small animal on foot if it had to, galloping after it's prey like a horse? [link] [comments] |
| Is opal glass? Do opal exibit glass transition when heated? Posted: 16 Jun 2022 09:20 AM PDT I've learned today that obsidian is a type of glass, and was wondering if opal was too. Wikipedia defined "glass" as any solid formed by rapid melt quenching, which would exclud opal, or more generally as any amorphous solid (like opal) that exibits glass transition when heated toward liquid state. So my question is "do opal exibit glass transition?" I've tried to look on google, but when I look for "opal" and "glass", I find stuff for "opal glass"... [link] [comments] |
| Does the earth gain or lose solid surface area? Posted: 16 Jun 2022 10:23 AM PDT I mean to ask this question both in total with all factors as well as if you disregarded humans transporting earth between different areas and the rising water levels due to climate change (which I guess answers the total, but I am not sure). What I do know is that volcanoes erupting and the lava cooling down can create new islands, so I wondered whether more earth, sand and mass eroded into the sea or more surfaced due to lava. When disregarding the continents and only looking at all islands (including new ones) it would also be a very interesting statistic. I have for example heard that the tallest volcano of spain on Tenerife was once a lot taller, but collapsed due to not being stable enough. I would guess that this made the total area over water bigger but reduced the mass over water. [link] [comments] |
| Why is the humidity of the air above open ocean not 100%? Posted: 16 Jun 2022 05:08 AM PDT |
| what development do lungs undergo through between the end of puberty and the ages of 20-25? Posted: 16 Jun 2022 05:07 AM PDT I've heard that human lungs finish developing between the ages of 20-25. What sort of additional development do the lungs still have to undergo through after puberty? [link] [comments] |
| Does the Adenovirus remain dormant(Latent) in the system after initial infection? Posted: 16 Jun 2022 04:09 PM PDT Title says it, do adenoviruses remain dormant in the body? Because I've been taking interest in "latent viruses", I found detailed articles about how the simplex, zoster, hiv and other retroviruses remain in the body (there is even a detailed wikipedia table describing the location of the latency). However I wasn't able to find detailed information regarding the latency of adenoviruses on the same level as I found on herpes viruses and retroviruses. And do other "common cold"/flu-like viruses do latency? [link] [comments] |
| Posted: 15 Jun 2022 04:00 AM PDT "We" are part of REN21's team, a network made up of academia, NGOs, industry, govt, and individuals who are supporting the world to transition to renewable energy. We recently released the Renewables 2022 Global Status Report (#GSR2022) so we're hosting an AMA to talk about renewables, energy, the future, and everything in between. Multiple people from the team are joining including:
We'll be going live from 11am ET (15 UT), so ask us anything! Username: /u/ren21community [link] [comments] |
| How do skin care products work? This is more of a science topic but r/science is only urls. Posted: 16 Jun 2022 12:12 PM PDT Isn't the skin waterproof? Also, some say that they restore natural ph levels, ph is -log[H3O+] and H3O+ is in a solution. Your skin isn't a solution, but a solid. Isn't applying skin care stuff useless, because the matter won't come in? If this is really off topic I will remove this. [link] [comments] |
| Posted: 16 Jun 2022 03:33 PM PDT I've read a couple articles that state studies that show men who drink milk have a ~27% higher risk of developing prostate cancer. I'm debating whether it's worth paying more for milk alternatives in my protein shake. [link] [comments] |
| How much synaptogenesis takes place in the adult brain? Posted: 16 Jun 2022 01:50 AM PDT The synaptic density in the human brain supposedly does not change much throughout adult life. And yet i hear there is still some forming of new synapses and elimination of others. How dynamic is this equlibrium? Has the actual level of adult synaptogenesis been quantified? Thank you! [link] [comments] |
| How does turpentine/paint thinner/spirits cause the symptoms of oxygen deprivation? Posted: 16 Jun 2022 09:21 AM PDT I know spirits and turpentine can kill, but I've always wondered if the mechanism for that is similar to that of CO and cyanide. Was reading through this thread: https://www.reddit.com/r/askscience/comments/4jiwj2/on_a_molecular_level_why_is_inhaling_cyanide_hcn/, and looking up the symptoms of inhalant poisoning. A lot of the symptoms of oxygen deprivation (lightheadedness, faint feeling, headache) seemed similar, if not entirely identical to that of CO poisoning. Only difference I could find is that turpentine can cause a buildup of fluid in the lungs? [link] [comments] |
| Posted: 15 Jun 2022 04:51 PM PDT I recently read this preprint, which suggests that triple vaccinated individuals showed zero neutralizing antibodies and zero B- and T-cell recognition of the Omicron variant of SARS-CoV-2: https://www.science.org/doi/10.1126/science.abq1841 However, real world data clearly show that triple vaccinated individuals are well protected against severe illness and death from all VoCs so far, including Omicron and its subvariants. My question is, then, what is the immunological mechanism that provides that protection? [link] [comments] |
| Posted: 15 Jun 2022 02:16 PM PDT |
| Posted: 15 Jun 2022 11:41 PM PDT According to the great interwebs Europa has 13.4% of Europe's gravity. Would you feel the 13.4% or would being underwater (assuming there's an ocean underneath the ice sheet) affect that? Question is inspired by a game called Barotrauma. [link] [comments] |
| Posted: 16 Jun 2022 06:39 AM PDT I've been wondering about non/low alcoholic beer, and how difficult the process to remove (and retain) alcohol could be from a live fermentation process. Would high pressures be possible without stopping the fermentation process? Could it be done in a home/garden environment? [link] [comments] |
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