How does a river like the Colorado go from a dribble to this massive river that carved the Southwest? |
- How does a river like the Colorado go from a dribble to this massive river that carved the Southwest?
- What does the coronavirus vaccine effectiveness rate mean?
- Experts say 70% of a population needs immunity to reach the herd threshold. Where I live, in Texas, polls say 1/3 of people refuse to get the vaccination. Can we reach herd immunity?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- When one unit is divided by another, that makes intuitive sense - m/h is "miles per hour," or "x miles for every hour". But what is the interpretation of units multiplied together? For example, work is defined as force times distance.
- Is it possible for a concussion, especially an untreated one, to worsen the effects of certain conditions or disorders?
- The meteorite EC002 was analysed for Mg/Al isotopes was found to predate the Earth. I guess this is like carbon dating but I don't know anything about Mg/Al dating. How does it work? Are there other chemicals that can be used for astronomical dating that go back that far?
- Why is coconut oil always used in 'healthy' recipies when oils that are hard at room temperature are typically less healthy?
- Is there any way to statistically normalize the COVID-19 vaccine efficacy between the different vaccines (AstroZenica, Johnson & Johnson, Moderna, Pfizer, etc)?
- Now that cars have "hydrogen fuel cells" that take hydrogen and turn it into power/water, could we build power plants that provide zero pollutants and clean water solving 2 issues?
- Why are the dosage of SRRIs for the treatment of OCD are usually higher than for depression?
- How do both pendulum clocks and watches (few watchmakers actually managed to do it) exactly synchronise with each other through the phenomenon of resonance? I only found generic and vague answers on the internet so I'd like a thorough explanation considering the exact physical phenomenon
- How does a stomach virus cause stomach cramping?
- What exactly causes someone with cerebral palsy (spastic diplegia) to develop shortened Achilles tendon?
- What is the one thing that, when changed in HIV, would make it easy for the host to make effective neutralising antibodies against HIV?
| Posted: 09 Mar 2021 12:39 PM PST |
| What does the coronavirus vaccine effectiveness rate mean? Posted: 10 Mar 2021 04:23 AM PST What does it mean that (the coronavirus) vaccine is XX% effective? As I understand it, after the vaccine is administered, the body produces antibodies. So why is one vaccine 60% effective and another 98% effective? Does this mean that after the administration of the former vaccine, only 60% of the patients produce antibodies? If so, does checking the antibody test at the appropriate time after the vaccine confirm that the person is protected and that they are in the right percentage of vaccine efficacy? [link] [comments]  |
| Posted: 09 Mar 2021 06:42 AM PST Considering that children are not currently being vaccinated, and studies are showing that immunity is stronger and lasts longer through the vaccine as opposed to infection, how likely is it that we'll actually reach the point people are calling "back to normal"? [link] [comments]  |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 10 Mar 2021 07:00 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Posted: 09 Mar 2021 12:16 PM PST This is a big obstacle for me in understanding work and related concepts in my Physics course. I have a good intuitive understanding of divided units - X/Y means that for every unit Y, there is an associated proportion of X. But for something like work, they're multiplied together. I've seen sources say that work is "the amount of force required to push through a unit length." But if that was the case, shouldn't the unit be force divided by distance? Why the multiplication? [link] [comments]  |
| Posted: 09 Mar 2021 08:01 AM PST I know this is going to be a really dumb question and I'm sorry if I sound like an anti vax mom by the end of it.Is it possible for a concussion to worsen the effects of, for example, my autism. I got concussed several years ago, about three months before I recieved my diagnosis, and never really got medical treatment for it, and I am curious as to whether it is possible that it worsened the symptoms? I'm aware it is developmental disorder, so I know I was born with it. I just remember the symptoms being worse since then? Or is it simply a case of I'm just more aware of it now, so it just seems worse, meanwhile it has always been the same? [link] [comments]  |
| Posted: 09 Mar 2021 02:22 PM PST |
| Posted: 09 Mar 2021 07:18 PM PST |
| Posted: 09 Mar 2021 05:41 PM PST What I mean is that the different vaccines used slightly different methodologies and populations. For example, mentioned in this article:
So knowing this (as well as other factors like outcome measurement and variants) is there a way to compare these vaccine effectiveness more directly using statistical methodologies? [link] [comments]  |
| Posted: 09 Mar 2021 05:23 PM PST I know hydrogen is the most abundant element in the known universe but that's the the extent of my knowledge on the subject. I saw a commercial claiming their vehicle ran entirely on this technology. How power hungry is collecting hydrogen? If cost efficient (electricity wise) to collect it, would that mean hydrogen vehicles are more green than teslas, seeing as they have to charge using power made at coal/natural gas power plants. Sorry if its the wrong tag. IDK if this fits under engineering or chemistry more. EDIT:Thanks for the answers. I figured it was the hydrogen extraction that was the problem. [link] [comments]  |
| Why are the dosage of SRRIs for the treatment of OCD are usually higher than for depression? Posted: 09 Mar 2021 04:05 AM PST That's something that really intrigues me, and I haven't been able to find the answer. When I was reading online, dosage of SRRIs for OCD are usually higher than for other conditions, why is that? [link] [comments]  |
| Posted: 09 Mar 2021 09:15 AM PST |
| How does a stomach virus cause stomach cramping? Posted: 08 Mar 2021 07:10 PM PST |
| Posted: 08 Mar 2021 05:52 PM PST I've searched about this topic for a while, but haven't been able to find much answers as for how the neural damage caused by cerebral palsy translates into tendon shortening, since most content online seems to regard treatment of the condition. Perphaps I don't have the best sources, but thanks in advance to anyone who would care to enlight me. [link] [comments]  |
| Posted: 09 Mar 2021 09:27 AM PST |
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