Are deep water currents affected by the coriolis effect? |
- Are deep water currents affected by the coriolis effect?
- Does a magnet ever lose its power?
- How does a buried seed know where "up" is?
- Why does the onset of schizophrenia occur later in women than men?
- Do we have a way to measure size other than relative to other objects? In other words, if everything in the universe was growing at the same rate, down to the subatomic level, would we know?
- Is saving fuel the only reason we use Hohmann transfers (for instance to go to Mars)?
- Does the atomspheric pressure increase when more co2 is produced?
- There are many dedicated hardware to solve cyptographic hashing functions because of crypocurrency mining. Does this weaken the security of the used functions in other applications?
- Do gases heat up when they contract? If so, theoretically, in a vacuum, would repeated equal contractions and expansions result in a net heat loss or not?
- Since red blood cells contain no nucleus how is dna obtained from blood?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- How long would someone need to spend in another country, before it would be detectable to isotope analysis?
- How does this chemical equilibrium expression work?
- What came first, fermions or bosons?
- Does sunlight lose energy as it travels?
- Can the same vaccine be used on any species?
- Why do American favorite colors include red less often than the rest of the world?
- Is is possible for fox fur to change color with age?
- I read a TIL about a woman who can smell Parkinson's and animals that can sniff out cancer. Has there ever been any significant push to investigate the human "odorome" wrt health and disease? If not, how would we go about it?
- Okay, so how on earth did New Zealand form?
- How does vegetation get to desert oases?
- What is the Derivation of the Autoignition Equation?
- How are soil maps of a large area like the United States able to be so clearly defined?
| Are deep water currents affected by the coriolis effect? Posted: 12 Feb 2019 03:38 PM PST Hello. I was wondering if deep water currents are affected by the coriolis effect. I have read about Ekman transport and how the coriolis effect plays a role in surface currents, but I was wondering if a similar process could occur in deep water currents? When I look at a map of the ocean currents, all I see for deep water currents is a relatively straight path from the Northern hemisphere to the Southern hemisphere, and then around Antarctica and up into the Pacific. I know they are density-driven, but shouldn't they deflect a little due to the coriolis effect as they move? Thanks! [link] [comments]  |
| Does a magnet ever lose its power? Posted: 13 Feb 2019 03:48 AM PST |
| How does a buried seed know where "up" is? Posted: 12 Feb 2019 10:09 PM PST |
| Why does the onset of schizophrenia occur later in women than men? Posted: 12 Feb 2019 10:08 AM PST According to these studies: Sex Differences in the Adolescent Brain; Women and Schizophrenia , the female brain finishes maturing on average four years earlier than males (21 in women and 25 in men). However, the onset of schizophrenia occurs later in women (late 20s+ in women and 18-24 in men). The first study referenced mentions a hypothesis that the pubertal surge in estrogen women experience may delay the symptoms, but the researchers seemed hesitant to attribute that as a definite cause. I have not been able to find an answer as to why schizophrenia typically begins later in women, especially since the observed development patterns between the sexes would intuit the opposite. Does anyone know the answer to this? [link] [comments]  |
| Posted: 13 Feb 2019 01:55 AM PST |
| Is saving fuel the only reason we use Hohmann transfers (for instance to go to Mars)? Posted: 13 Feb 2019 06:16 AM PST I realize that Hohmann transfers are the most efficient way of transferring between two elliptical orbits in the same plane, but are there other reasons why we choose that particular way? It seems that the need to wait for proper launch windows could become a problem sometime down the line. Could there be other reasonable trajectories, for instance, the craft decelerating and slingshotting around the Sun and then accelerating into a farther orbit? What would be the downsides of such flight-paths? Edit: Was corrected; Hohmann transfers aren't the most efficient but are amongst the most favourable. [link] [comments]  |
| Does the atomspheric pressure increase when more co2 is produced? Posted: 12 Feb 2019 03:29 PM PST |
| Posted: 13 Feb 2019 07:02 AM PST There are many ASICs, FPGAs, GPUs available to brute force SHA256 (for mining Bitcoins). This means that cracking SHA256 is cheaper than other algorithms. [link] [comments]  |
| Posted: 13 Feb 2019 07:48 AM PST |
| Since red blood cells contain no nucleus how is dna obtained from blood? Posted: 12 Feb 2019 01:45 PM PST |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 13 Feb 2019 07:12 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: 13 Feb 2019 12:25 AM PST So, I was reading Sue Black(formerly Professor of Forensic Anthropology at University of Dundee, Scotland)'s book "All That Remains" the other day and there was a passage that caught my attention. It was talking about the use of isotope analysis on people's hair to determine whether someone had spent time in another country (the specific example used was "a terrorist suspect claiming to have never left the UK" having spent time in Afghanistan), and it had me wondering about just how much time you'd need to spend in another country (or another part of your own, for that matter) to affect such an analysis? [link] [comments]  |
| How does this chemical equilibrium expression work? Posted: 12 Feb 2019 11:05 PM PST I came across an equation that looked something like this: HgO(s) = Hg(l) + O2(g). Now the equilibrium expression should be K = [O2], since HgO and Hg are solid and liquid respectively, so they shouldn't be considered in the equilibrium expression. According to this expression, reducing the concentration/pressure of O2 should reduce K, and in turn, shift the equilibrium to the reactants. However, according to Le Chatelier's Principle, reducing the pressure would shift the equilibrium to the right, as there are more moles of gas there. How do Le Chatelier's Principle and the equilibrium expression relate/affect one another, and are they always accurate? [link] [comments]  |
| What came first, fermions or bosons? Posted: 13 Feb 2019 01:42 AM PST |
| Does sunlight lose energy as it travels? Posted: 12 Feb 2019 08:50 PM PST Why does the sun heat heat a planet like mercury more than a planet like Neptune? If space is a vacuum, where does the energy go that is lost between the sun and a planet? [link] [comments]  |
| Can the same vaccine be used on any species? Posted: 12 Feb 2019 08:09 PM PST Assuming that, for example, a cat and a human could be infected with the same illness, could an identical vaccine be used grant immunity to both species? What factors would cause a vaccine to be ineffective between species? [link] [comments]  |
| Why do American favorite colors include red less often than the rest of the world? Posted: 13 Feb 2019 07:11 AM PST Some Google searches tell me that average American favorite colors are blue, purple, green, THEN red, while the rest of the world's average favorite colors are blue, then red, then whatever else. So, what makes red less appealing to us? I don't know if other countries associate it with anger and intensity like we do. I also considered the Red Scare, but that's getting far enough back that it shouldn't affect the younger generations so much. So why? [link] [comments]  |
| Is is possible for fox fur to change color with age? Posted: 13 Feb 2019 07:09 AM PST I'm asking this because I'm a Zootopia fan and I noticed that there was one fox character who was shown as an eight-year-old to have a white-tipped tail, but when we later see that character in his twenties, he has a brown-tipped tail. A goof? Probably. But I'm curious if that sort of thing happens in real life. [link] [comments]  |
| Posted: 13 Feb 2019 07:06 AM PST Speculating here, but it seems like monitoring the changes in the odorome might be a cheap and useful diagnostic tool. The TIL in the title. [link] [comments]  |
| Okay, so how on earth did New Zealand form? Posted: 12 Feb 2019 04:00 PM PST I'm looking at the information available to me, and New Zealand forming, as I understand it, involves it breaking off of Australia and sinking into the ocean. This confounds me for several reasons. 1: I see no rift valley. It's my understanding that when continents break apart, you get a rift valley, which forms into an ocean. Now, I see no oceanic ridge between New Zealand and Australia that may have formerly been a rift valley. 2: How is New Zealand not on its own plate? It's made of continental crust, and separate from New Zealand through a process I can only assume involved rifting. Wouldn't this result in it being on its own plate? Instead, this mass of continental crust is somehow over a convergent boundary where two bits of oceanic crust meat. How does this work? This doesn't make sense to me. 3: It's on a convergent boundary, but the sunken continent isn't outlined by subduction zones? If two bits of oceanic crust are ramming together around New Zeland, which is made of continental crust, why isn't the crust subducting under all of Newzealand? Now, I'm assuming I'm missing some major information here, or there are some mechanics here that I just don't understand or know about, because this whole situation pokes so many holes in my understanding of plate tectonics and how continental crust moves, that it boggles me and makes me question if I know anything at all. Someone, please explain this mess to me. [link] [comments]  |
| How does vegetation get to desert oases? Posted: 13 Feb 2019 06:23 AM PST https://www.reddit.com/r/pics/comments/aq289z/this_is_what_an_oasis_in_libya_looks_like/ Saw this in r/pics. The desert must be millennia in age, has the vegetation just reproduced and survived from before the desert was there? Or is there a different way vegetation that lush is there? Some commentors say the water must be salty, so I'm just lost how all this can be there. [link] [comments]  |
| What is the Derivation of the Autoignition Equation? Posted: 13 Feb 2019 02:31 AM PST The time for a material to reach its autoignition temperature is defined as : tig= (pi/4)*kpc[(Tig-T0)/q"]^2 where k = thermal conductivity, ρ = density, and c = specific heat capacity of the material of interest, T0 is the initial temperature of the material (or the temperature of the bulk material). The heat flux is q", the autoigntion temperature is Tig, and the time it takes to reach that is tig. I tried to search the derivation of this equation online but could not find any. What is the derivation of the autoignition temperature? And is there even a derivation for this? [link] [comments]  |
| How are soil maps of a large area like the United States able to be so clearly defined? Posted: 13 Feb 2019 05:47 AM PST |
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