Recent comments in /f/askscience
Mowenatl t1_j7lxgty wrote
Reply to comment by w2ltp in How could a high-altitude surveillance balloon be captured? by aggasalk
You can use one or two balloons which are attached to a tow line deployed from the back of a plane that has sufficient power to drag the balloon and equipment down. You loop or entangle your target balloon, deflate yours, reel the target ballon in, then pop/ deflate it when it’s close to the ground / aircraft.
Maybe I should have called it reverse skyhook as clarification.
atred t1_j7lx0bm wrote
Reply to comment by JAK2222 in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
I was responding to this:
> SARS-CoV-2, for instance, is highly mutable.
To be charitable to the OP, the comparison base they used was probably different. Thanks for clarification.
PRSArchon t1_j7lx0aw wrote
Reply to comment by samanthasgramma in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
While it is true the virus will never be gone, it is over in many countries. I have not noticed a single thing about covid in the past ~10 months where I live. That’s mostly due to very good vaccination rates. Sure there will be seasonal vaccinations for some demographics but that is no different than the flu.
bmyst70 t1_j7lwuyk wrote
Reply to comment by Asterose in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
I think it was during the pandemic that many people saw real science unfolding almost in real time. Until then most people only had the orderly, bite sized chunks in school. Which give the illusion that science is always an orderly process.
But real science is messy, with an educated best guess proven or disproven. Lather, rinse, repeat. It does amazing things but orderly, it is not.
And these many people got very upset and decided it's not a good thing because it's not crisp, black and white and unchanging.
JAK2222 t1_j7lu7j9 wrote
Reply to comment by atred in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
Because in a sense it is true. SARS CoV 2 is I still a virus that mutates relatively slowly ( actually has proofreading machinery) compared to many other viruses.
[deleted] t1_j7lu037 wrote
Reply to comment by pienoceros in Are people with autoimmune diseases less likely to get viral infections? How about cancers? by Selfeducated
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[deleted] t1_j7lrrfi wrote
Reply to comment by Cluefuljewel in Why are specific monkey/ape species suitable for biomedical research while others are not ? by Sleevvin
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Cluefuljewel t1_j7lowyh wrote
Reply to comment by atomfullerene in Why are specific monkey/ape species suitable for biomedical research while others are not ? by Sleevvin
I actually thought use of apes ie chimps is now prohibited by law at least in the us. Ethical reasons mostly and not as “useful” as once thought for all the reasons.
pienoceros t1_j7lown6 wrote
Reply to Are people with autoimmune diseases less likely to get viral infections? How about cancers? by Selfeducated
People being treated for autoimmune disorders need their immune system suppressed because it's attacking otherwise healthy tissue, organs, systems, etc. They are more susceptible to viral and secondary infection.
Source- I am immune compromised. I receive immunosuppressive infusions regularly.
DrQuailMan t1_j7lljwo wrote
Reply to comment by Asterose in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
However, a red flag for fake science at work is if when asked to explain its predictions, or changes in its predictions, no details are provided.
Of course this is not the case for covid-19 science. But the person asked a legitimate question about the state of the research. You don't have to give conspiracy theorists ammo by responding with a non-answer like that. Just say which early studies indicated low mutability, and which later studies or observations indicated high mutability.
[deleted] t1_j7li5ig wrote
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atomfullerene t1_j7le57o wrote
Reply to Why are specific monkey/ape species suitable for biomedical research while others are not ? by Sleevvin
The species we use for research are called "model species". We use these species for a combination of reasons. Part of it is because they have some relevant connection to human biology (or other kinds of biology, depending on what we are studying). But just as important, if not more so, are other factors. Things like "how difficult/expensive is this animal to keep in captivity", "how much do we know about this animal in general", "what are the ethics of working with this animal", "how easy is this animal to work with in a lab setting", "how many other scientists work with this animal", and "how easy is it to get these animals".
It's not that rhesus monkeys and baboons are particularly more human-like than other old-world monkeys. But they are widely available, reasonably easy to keep (for a primate), and have had plenty of existing research done on them, which means their care and biology is understood already. All this makes them easier to use than some other species.
You can see similar patterns with lab rats and mice, zebrafish, fruit flies, C. elegans, and other model organisms. It's not that they are especially different from their relatives, but they are widely used, cheap, easy and fast to raise.
Contrasting, say, rhesus monkeys with chimpanzees....chimps are bigger, more intelligent and harder to keep suitably in captivity (so more ethical issues), they reproduce more slowly, and they are endangered. Even though they are more humanlike in their biology, working with them is kind of a nightmare. It's more expensive, you need bigger facilities, you aren't going to get ethics board sign offs as easily, and it's not easy to source chimps. And especially if you are studying the immune system, other animals are pretty close. The marginal benefit of working with chimps just doesn't outweigh the extra difficulty. Really the only time you see research done on chimps is when there's some particular reason you can't use other primates (or non-primates).
[deleted] t1_j7lbzwj wrote
[deleted] t1_j7laypu wrote
Reply to How do Earthquakes affect animals? by ObberGobb
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[deleted] t1_j7l6pfv wrote
Reply to comment by Medicluke in How many hepatitis viruses exist? by Juergenvonwuergen
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Sheldon121 t1_j7l0ihf wrote
Reply to comment by Medicluke in How many hepatitis viruses exist? by Juergenvonwuergen
Thank you. I’d never heard of a fecal kind but I hope it’s taught in schools these days, as it could certainly be as problematic as the others but not as obvious a means of transmission. Same can be said about the oral kind. No, I just read up on them. Herpes A and E are usually found in developing nations without the ability to washing hands.
[deleted] t1_j7l027x wrote
Reply to How many hepatitis viruses exist? by Juergenvonwuergen
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th30be t1_j7kyh9y wrote
Reply to comment by AllenRBrady in Is the yearly cycle of varying daylight durations from day to day throughout time consistent? Is the cycle we have today the same as in the 17th century? by meellowstar
Dang. What an interesting system. Thanks for that information. I am going to look more into time keeping.
Wayelder t1_j7kw4c0 wrote
okay, now the serious stuff.
Could a small missile carry a parachute payload that could explode gently or "pop" against the balloon, emptying the balloons' envelope? It would strike, burst and ideally entangle the balloon and then have a tethered payload of a remotely opened parachute package?
Medicluke t1_j7kw3li wrote
Reply to How many hepatitis viruses exist? by Juergenvonwuergen
So there is A,B,C,D(kinda a subtype of B), and E. A and E are fecal oral transmissions while B,C,D are transmitted through bodily fluids. There are subtypes that are mostly regional but that covers the big ones.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017450/#abstract-1title
[deleted] t1_j7kukfj wrote
Reply to How many hepatitis viruses exist? by Juergenvonwuergen
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Octavia9 t1_j7ksjfs wrote
Reply to comment by binary101 in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
It’s pretty impossible for everyone to quarantine. We need safety services, health care, food, agriculture can’t just stop especially caring for livestock. Utilities have to keep running. It’s a long list and reminds me how interdependent we really are on each other.
[deleted] t1_j7krb0x wrote
Reply to comment by pablofs in (Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’? by jsgui
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theganglyone t1_j7m01am wrote
Reply to Are people with autoimmune diseases less likely to get viral infections? How about cancers? by Selfeducated
Unfortunately no.
In an autoimmune disease the immune system targets a protein that healthy cells produce. Because this targeting is highly specific, it doesn't carry over to viruses, bacterial, or cancer cells.