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Thursday, March 19, 2020

Will social distancing make viruses other than covid-19 go extinct?

Will social distancing make viruses other than covid-19 go extinct?

Will social distancing make viruses other than covid-19 go extinct?

Posted: 18 Mar 2020 09:26 AM PDT

Trying to think of the positives... if we are all in relative social isolation for the next few months, will this lead to other more common viruses also decreasing in abundance and ultimately lead to their extinction?

submitted by /u/smartse
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Do antibiotics kill all healthy gut bacteria and if so how does the body return to normal after treatment?

Posted: 19 Mar 2020 07:35 AM PDT

When you have an illness (flu, throat infection etc) does your immune system weaken since it is busy fighting or actually improves since it is active? Or none of the above? Thank you

Posted: 19 Mar 2020 08:01 AM PDT

Are people who had bronchitis more likely to die from COVID-19?

Posted: 19 Mar 2020 04:35 AM PDT

I'm curious if scarring on your lungs from past illnesses like bronchitis makes you more vulnerable to COVID-19, as I heard the virus also causes damage to the lungs. Thanks in advanced :)

submitted by /u/GunterTown
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Do fish get confused when a large current or flood displaces them somewhere far away?

Posted: 18 Mar 2020 05:52 PM PDT

How does water deep underground eventually make itself back to the surface?

Posted: 19 Mar 2020 06:44 AM PDT

When transmitting light via optic fibre, how much power is lost/absorbed per unit distance? How does this compare to high voltage power cables?

Posted: 19 Mar 2020 04:29 AM PDT

I'm looking at power-over-fibre, and I'm trying to get a handle on the comparative advantages/disadvantages.

Unit distance, because I don't know if meters or kilometers is more appropriate unit, therefore responder's choice :)

submitted by /u/ThatWhichNeverWas
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Is there a way to break the CO2 molecule to seperate C and O2 from eachother?

Posted: 19 Mar 2020 03:29 AM PDT

how can developing embryos in eggs (birds and reptiles), survive and grow without oxygen?

Posted: 19 Mar 2020 03:10 AM PDT

How many coronavirus strains are currently circulating the globe?

Posted: 19 Mar 2020 01:54 AM PDT

Will a metal conduct a polarised radio wave?

Posted: 19 Mar 2020 04:20 AM PDT

Polarised radio waves can skip Antennas completely does that imply that metals can be polarised too just as lens?

Imagine an antenna connected to another antenna, signal "a" that is polarised it hits the first antenna will the second one emmit a polarised radio wave?

I think my question comes from a misunderstanding about what really is polarisation.

submitted by /u/AntonioOSalazar
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Person A travels with c*0.99 relative to me. Their time passes slower. From their perspective my relative speed to them is c*0.99. So from their perspective, is my time also passing slower than theirs and if so how is that possible?

Posted: 18 Mar 2020 04:09 PM PDT

Why will it take around 18 months to develop a vaccine for coronavirus? What is it that has to be figured out?

Posted: 18 Mar 2020 01:39 PM PDT

The extent of my understanding of vaccines is basic- you get injected with a dead version of the disease or virus the vaccine is for, along with a bunch of other ingredients, and then it allows your body to learn how to fight it effectively.

If that is the case, how come it isn't as simple as injecting the dead version of coronavirus?

submitted by /u/Equal-Edge
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How does water get to the top of huge trees through adhesion, cohesion, and capillary action, when atmospheric pressure should limit the uptake to 10 metres?

Posted: 18 Mar 2020 11:00 PM PDT

Does Covid-19 cause the production of IgA antibodies?

Posted: 19 Mar 2020 02:19 AM PDT

Why were people in the past able to drink water from natural sources without getting sick?

Posted: 19 Mar 2020 01:04 AM PDT

Did they just have a better adapted digestive system? Did they eat things to counter the effect? Was the water cleaner and therefore caused less sickness? Or did they frankly get sick on a regular basis and didnt have a choice?

Answers to all questiones above are appreciated ;)

submitted by /u/peterw1310
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Is there any evidence that ancient humans might have danced or sang to impress a mate?

Posted: 18 Mar 2020 04:48 PM PDT

Why are the lanthanides and actinides crammed in one space?

Posted: 18 Mar 2020 07:32 PM PDT

Why are elements 58-71 in one space?

submitted by /u/under_score_-
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Is it possible to visually identify COVID-19 in a blood sample?

Posted: 18 Mar 2020 11:13 PM PDT

The pictures I've seen wrt COVID-19 could (at best) be characterized as "an artist's conception." Mostly I expect one strand of DNA looks pretty much like another and they can only be identified with specific testing.

But then I remembered reading about the "Shepherd's crook" associated with Ebola, which made me wonder.

While finding a COVID-19 strand floating around in a blood sample would be challenge enough, if you did happen upon one, would it be different enough from normal blood elements to distinguish?

submitted by /u/jferry
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Why did Ebola not spread as much as COVID-19?

Posted: 18 Mar 2020 10:29 PM PDT

How did the world manage to contain it primarily in Africa with only small cases in other countries? Why can't we do the same with Corona?

submitted by /u/ohgirltsss
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When does a disease officially meet the requirements to become a plague?

Posted: 18 Mar 2020 12:37 PM PDT

Every definition I've seen includes "high mortality rate" which is arbitrary. Is there an actual number? Other requirements? Are we approaching a plague?

submitted by /u/as_long_as_paper
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Do we know what smells bad or good automatically? Or is it only by association over time?

Posted: 18 Mar 2020 03:43 PM PDT
vào lúc No comments:

Wednesday, March 18, 2020

If bruises are from bleeding underneath the skin, where does all the blood go when it heals?

If bruises are from bleeding underneath the skin, where does all the blood go when it heals?

If bruises are from bleeding underneath the skin, where does all the blood go when it heals?

Posted: 17 Mar 2020 07:10 PM PDT

AskScience AMA Series: We study the role of the biological clock in sleep, health, and physiology! Ask us anything!

Posted: 18 Mar 2020 04:00 AM PDT

We are members of the Society for Research on Biological Rhythms (SRBR), an organization of international scientists, clinicians, and industry experts who promote basic and applied research in all aspects of biological rhythms. We are dedicated to advancing rigorous, peer-reviewed science and evidence-based policies related to sleep and circadian biology.

Our circadian clock evolved in the presence of a natural light/dark cycle. In this time of social distancing and quarantining, people spend an increasing amount of time indoors, with low levels of daytime lighting, the use of electric light at night, and limited exercise possibilities. This sends confusing signals to our circadian clock. We would like to remind people of the benefits of daylight exposure, exercise, and regular meal timing on sleep and health, including the immune system. We are here to address your questions about biological clocks and sleep in the context of the current coronavirus outbreak.

Our team for today is:

  • Dr. Céline Vetter - CU Boulder, Colorado (light, circadian rhythms, sleep, and chronic disease epidemiology)
  • Dr. Annie Curtis - School of Pharmacy and Biomolecular Sciences &Tissue Engineering Research Group, Royal College of Surgeons in Ireland (circadian clocks, immune system)
  • Dr. Allison Brager - Walter Reed Army Institute of Research (sleep, circadian rhythms and behavioral neuroscience)
  • Dr. Louise Ince - University of Geneva, Switzerland (circadian rhythms and immune function)
  • Dr. Jonathan Cedernaes, Northwestern University and Uppsala University (sleep, circadian rhythms, metabolism)
  • Dr. Laura Kervezee - Leiden University, Netherlands (shift work, circadian disruption, and human health)
  • Dr. Gena Glickman, Uniformed Services University of the Health Sciences (circadian rhythms, light sensitivity, neuroscience)

You can also find us on Twitter at @SRBR_Outreach.

We will be online at 3pm ET (7pm UTC) on March 18 to answer your questions. Ask us anything!

Username: SRBR_Outreach

submitted by /u/AskScienceModerator
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What component/mechanism of a tree determines when and how it will branch off from the parent branch?

Posted: 17 Mar 2020 06:40 PM PDT

I was walking around my girlfriends cabin in the PNW, quarantining and all, and became fixated of the structure on simple moss/lichen & trees.

I recently dove into computer graphic generation and am now looking to figure out what mechanism forces a tree/moss to branch off from the parent branch and how? I want to recreate it with a graphic generating application - as I think it would be awesome to build a time lapse/simulation of the process. Plus, I have lots of time on my hand now.

Thanks!

submitted by /u/sahhiir
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Was the corona virus around before this pandemic?

Posted: 18 Mar 2020 07:18 AM PDT

I apologise if this isn't worded correctly, or if this doesn't belong on this sub. A lot of people are conspiring that the government created and knew about this virus before it started spreading this year. Although, I'm pretty sure that this virus has been around for years? It's just recently evolved to effect humans? I'm not 100% sure about this as I haven't thoroughly researched this, because as it's become more and more reported on it's hard for me to find information that isn't statistics on those infected and the rate it spreads.

In all honesty, I'm just fed up of the fearmongering. One person posts on Facebook about this American Patent or something to the corona virus back in 2007 and now everyone is convinced all governments have been developing something to kill us all off and control us. At least that's what's happening on my Facebook feed atm. Despite people in government catching this virus which I think wouldn't happen if what they're saying is true, which it isn't.

I think what I really want to know is how this virus came about, what started it and how it started to affect humans?

submitted by /u/weetoongirly
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Why don’t wild animals get ill from drinking dirty outside water whilst we do?

Posted: 17 Mar 2020 03:27 PM PDT

Dirty water (found outside) is portrayed as having all sorts of bacteria, viruses and fungi etc meaning that we can't drink it without getting very sick. How is it we've evolved to have very little tolerance for this meanwhile other animals can drink almost any water found outside and be fine?

submitted by /u/V4Vendetta69
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What is in a rain drop besides water?

Posted: 18 Mar 2020 07:05 AM PDT

When a rain drop is already formed and falling to the ground, is there anything in the drop besides water? Like microscopic organisms or specs of dust or anything else?

submitted by /u/cheetoes24
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Can we kill the COVID-19 Virus with UV light?

Posted: 17 Mar 2020 10:18 PM PDT

I worked on an automated UVC Sanitizer in the past as a project for my engineering and it is quite cheap and effective in killing microbes as compared to a solution based sanitization, I just want to know, if we can use any type, UV type-A, UV type - B or UV type-C for sanitizing the COVID-19 Virus in absence of humans for places such as offices or roads.

submitted by /u/SwitchKunHarsh
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Why are planets and moons spherical? I haven't seen any planets that are oddly shapes so far. Similar thing to asteroids, why are they not as perfectly spherical as planets?

Posted: 17 Mar 2020 11:27 PM PDT

Scientists who understand viral nomenclature, why is Coronavirus called covid-19?

Posted: 18 Mar 2020 03:12 AM PDT

Just wondering, is there covid-1up to 19 and maybe even beyond? What determines what number what virus gets?

submitted by /u/Prize-Highlight
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Why does metal (i.e. a metal spoon) get hot when it’s bent?

Posted: 17 Mar 2020 07:36 AM PDT

How long does it take to sequence DNA?

Posted: 17 Mar 2020 05:55 PM PDT

I'm not really sure of what flair to put so if it's wrong please tell me and I'll fix it. Is it possible to send informations through the waves of visible light just like we do with the other kinds of waves we already use?

Posted: 17 Mar 2020 09:45 AM PDT

I've always asked myself how could my phone be linked up with another device that's in another room; and since I discovered that radio waves, infrared waves and all the other waves are just the same as visible light and the only thing different is that we can't see them with our eyes, I figured out that the waves that link my phone with that other device treat walls and other stuff like light treats glass and other transparent surfaces. So my question is: Would it be possible to carry informations through visible light just like we do with other kind of waves (radio waves and such)? Thanks for taking the time to respond to this question :)

submitted by /u/Vitomocash00
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Why does a viral illness frequently become a bacterial infection of the respiratory system?

Posted: 17 Mar 2020 03:18 PM PDT
vào lúc No comments:

Tuesday, March 17, 2020

AskScience Meta Thread: COVID-19 and reaching people in a time of uncertainty

AskScience Meta Thread: COVID-19 and reaching people in a time of uncertainty

AskScience Meta Thread: COVID-19 and reaching people in a time of uncertainty

Posted: 16 Mar 2020 02:52 PM PDT

Hello everyone! We thought it was time for a meta post to connect with our community. We have two topics we'd like to cover today. Please grab a mug of tea and pull up a comfy chair so we can have a chat.

COVID-19

First, we wanted to talk about COVID-19. The mod team and all of our expert panelists have been working overtime to address as many of your questions as we possibly can. People are understandably scared, and we are grateful that you view us as a trusted source of information right now. We are doing everything we can to offer information that is timely and accurate.

With that said, there are some limits to what we can do. There are a lot of unknowns surrounding this virus and the disease it causes. Our policy has always been to rely on peer-reviewed science wherever possible, and an emerging infectious disease obviously presents some major challenges. Many of the questions we receive have been excellent, but the answers to them simply aren't known at this time. As always, we will not speculate.

We are also limiting the number of similar questions that appear on the subreddit. Our panelists are working hard to offer in-depth responses, so we are referring people to similar posts when applicable.

To help, we have compiled a few /r/AskScience resources:

  • The COVID-19 FAQ: This is part of our larger FAQ that has posts about a multitude of topics. We are doing our best to update this frequently.

  • COVID-19 megathread 1 and COVID-19 megathread 2: Lots of questions and answers in these threads.

  • New COVID-19 post flair: We've added a new flair category just for COVID-19. You can filter on this to view only posts related to this topic. We are currently re-categorizing past posts to add to this.

  • We will continue to bring you new megathreads and AMAs as we can.

Of course, all this comes with the caveat that this situation is changing rapidly. Your safety is of the utmost importance, and we'd like to remind you not to take medical advice from the internet. Rely on trusted sources like the WHO and CDC, check in with your local health department regularly, and please follow any advice you may receive from your own doctor.

AskScience AMAs

Second, we wanted to discuss our AMA series a bit. As you know, many schools have either cancelled classes or moved to online learning. This presents a unique set of challenges for students and teachers alike. Many of our expert panelists also teach, and they are working extremely hard to move their courses online very quickly.

We are putting out a call for increased AMAs, with the goal of giving as many students as possible the opportunity to interact directly with people who work in STEM fields. This goes for all disciplines, not just those related to COVID-19. We typically host scientists, but we have also had outstanding AMAs from science authors and journalists.

As always, we plan only schedule one AMA per day, but we will be making an effort to host them more frequently. To aid in this process, we've created a website for interested parties to use to contact us.

We schedule AMAs well in advance, so don't hesitate to contact us now to set something up down the line. If you'd like to do an AMA with your research team, that's great, too (group AMAs are awesome). If you're a student or science educator, please keep an eye on the calendar in the sidebar! As always, feel free to reach out to us via modmail with questions or comments.

To kick things off, we'd like to cordially invite to join us for an AMA with author Richard Preston on March 17. He is the author of a number of narrative nonfiction books, including The Hot Zone, The Demon in the Freezer, and Crisis in the Red Zone.

All the best, The /r/AskScience Moderation Team

submitted by /u/AskScienceModerator
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AskScience AMA Series: I'm Richard Preston, author of The Hot Zone, Demon in the Freezer, and Crisis in the Red Zone, and I know quite a lot about viruses. AMA!

Posted: 17 Mar 2020 04:00 AM PDT

For many years I've written about viruses, epidemics, and biology in The New Yorker and in a number of books, known collectively as the Dark Biology Series. These books include The Hot Zone, a narrative about an Ebola outbreak that was recently made into a television series on National Geographic. I'm fascinated with the microworld, the universe of the smallest life forms, which is populated with extremely beautiful and sometimes breathtakingly dangerous organisms. I see my life's work as an effort to help people make contact with the splendor and mystery of nature and the equal splendor and mystery of human character.

I'll be on at noon (ET; 16 UT), AMA!

submitted by /u/AskScienceModerator
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Why do viruses mostly affect only one species?

Posted: 16 Mar 2020 10:25 AM PDT

I hope my observation is correct. We talk about a virus jumping from one species to another as a special event, so the normal case seems to be that viruses specialize in one host organism.

Most of the machinery of cells is universal, so I wondered why viruses need to specialize.

submitted by /u/VictorVenema
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Why can't we just put some dead COVID-19 viruses in a syringe and call it a vaccine?

Posted: 17 Mar 2020 03:39 AM PDT

Isn't that what vaccines are? I know there's a reason why but I'm too ignorant to know it.

submitted by /u/dannylopuz
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How do grid-scale energy storage facilities determine what is 'excess energy'?

Posted: 17 Mar 2020 07:03 AM PDT

I've seen a few things lately about energy storage solutions that store the excess energy that is generated by power plants, but I'm not sure how they determine how much energy is 'excess'.

My understanding is that the electricity generated is ideally meant to match the electricity required. When more electricity that this is generated, how do these storage facilities know how much of the grid is actually required, and how much they are able to store without affecting everyone else on the grid?

submitted by /u/zaeran
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Is there any evidence that individually targeted advertising is any more effective than traditional ads?

Posted: 17 Mar 2020 05:58 AM PDT

For all the data that tech companies are supposedly collecting on us, it doesn't seem like the ads I'm shown are really any more relevant to me than Old Media advertising. If anything, it sometimes seems like they're working against themselves. Like, you search the word "lawnmower" once to double-check how it's spelled (don't judge me), and suddenly your feed is flooded with ads for lawnmowers.

For all the money and effort that must have been spent on building this system of targeted ads, is there any evidence to suggest that it actually pays off?

submitted by /u/BashSwuckler
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Are there any viruses that don’t make us sick?

Posted: 17 Mar 2020 04:02 AM PDT

Ok, so there are viruses that cause illnesses as simple as the common cold, all the way up to HIV and Ebola, so have any viruses been discovered that are capable of just living inside us without making us sick?

Also, where do viruses come from? I read somewhere how they are different to the life that evolved on Earth and may have come from space.

submitted by /u/yas9in
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Can microscopic organisms retain memory?

Posted: 17 Mar 2020 07:52 AM PDT

Why do certain events cause someone to develop mental illness?

Posted: 17 Mar 2020 07:31 AM PDT

Why does staying in isolation for long amounts of time cause someone to go mad? And how do other causes of mental diseases change the way the brain behaves?

submitted by /u/Mrcorn5000
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How do asymptomatic people (who don’t cough) transmit COVID-19?

Posted: 16 Mar 2020 04:24 PM PDT

How does a person develop asthma?

Posted: 17 Mar 2020 02:56 AM PDT

I know it might seem like a weird question to ask, but how does asthma develop? Does it develop through a bacteria/virus given during birth, similar to Herpes? Is it like a genetical dysfunction/disability (like diabetes)? Is it hereditary?

submitted by /u/ReggieCactus
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Where is the water at during a drought? Isn't the sum total of water on Earth constant through time?

Posted: 17 Mar 2020 12:43 AM PDT

Is there a place that experiences excess rainfall when another has a drought?

submitted by /u/bigbadeternal
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Do sexual thoughts increase testosterone?

Posted: 17 Mar 2020 12:21 AM PDT

Heard on an audiobook by Bill Bryson that simply thinking sexual thoughts increases testosterone and thus facilitating facial hair growth. Curious if that's remotely true

submitted by /u/SilverDollarCity
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How does the mRNA-1273 vaccine that Moderna is testing work (or is expected to)?

Posted: 17 Mar 2020 08:34 AM PDT

Is Hempcrete made from MgO or lime vulnerable to degradation by acid rain or carbon dioxide?

Posted: 17 Mar 2020 08:08 AM PDT

Rehabilitated forests that see an increase in wildlife. Where do they come from?

Posted: 17 Mar 2020 01:30 AM PDT

Just read an article about a forest planting project and after 20 years various mammals, reptiles and land based creatures returned. Where did they come from? How did they get there again after they were driven out previously?

submitted by /u/DubaiDave
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What physical attributes makes a virus airborne?

Posted: 17 Mar 2020 07:00 AM PDT

Do they get longer spikes that catch air currents like dandelion seeds? Or is their shell more aerodynamic? Or maybe the shell is tougher, allowing the virus to survive in the open air as opposed to viruses that lose cohesion when exposed to the elements?

submitted by /u/MotherTreacle3
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What is neural phase-locking and how does it relate to music?

Posted: 17 Mar 2020 06:57 AM PDT

I've seen websites online which claim to offer music that can induce neural phase-locking which apparently helps with concentration?

submitted by /u/Tbrum2
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Have there been any significant mutations to SARS-CoV-2 since it was identified? Is it too soon to tell? Are there even enough samples to make that determination?

Posted: 17 Mar 2020 03:05 AM PDT

Is there any data to suggest that COVID-19 pandemic might indirectly save lives due to a decrease or traffic and traffic accidents, less pollution, and preventing the spread of other diseases?

Posted: 16 Mar 2020 11:15 PM PDT

I was in the road today, and noticed the lack of traffic which got me thinking there's probably fewer accidents too, then I began contemplating if from a utilitarian point of view if this pandemic was actually a good thing?

submitted by /u/chorroxking
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Is there any reason to suspect or way to find out if COVID-19 could cause adverse side effects long term after recovery?

Posted: 16 Mar 2020 02:46 PM PDT

Chicken pox, for example, lays dormant in the body for decades before potentially manifesting as shingles.

Any clues as to weather COVID-19 could do something similar?

submitted by /u/BenZed
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Were there any new islands etc., which were discovered when Satellits started to map the world?

Posted: 16 Mar 2020 02:08 PM PDT

I wondered if - when satellites began to correctly map the world - scientists found new Islands or new places which were never known before and if so, which one?

submitted by /u/vika0411
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If an Alpha or Beta Particle ionises an atom is the direction the resulting electron travels random, or defined by the direction the ionising particle was traveling?

Posted: 17 Mar 2020 02:49 AM PDT
vào lúc No comments:
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