Does heat, humidity, and other atmospheric variables affect wi-fi and other signals? |
- Does heat, humidity, and other atmospheric variables affect wi-fi and other signals?
- Are there equations that model how rivers change their course over time?
- What elastic moduli are strain dependent?
- Where does the Higgs boson gets its own mass?
- What do sexes in fungus mean?
- Where does the theoretical "two week" limit on weather forecasting skill come from?
- Do Most Comets Orbit in the Same Plane as the Planets?
- How different is our vision from the other apes?
- Does honey from different flowers taste different or do all bee "recipes" taste the same?
- Where does the "blast" portion of a nuclear explosion come from?
- Historically, when large numbers of sailboats/ships had to travel in formation as a fleet, are there different dynamics governing the movement of ships in the front, middle and rear of the group?
- How do female mosquitoes know humans have blood to suck?
- How do your eyes prevent shaking while you're walking?
- Does a volcanic eruption make another volcanic eruption more likely?
- Saw this strange cloud over Santa Cruz/tenerife today. Everyone was taking pictures. Can someone explain what is going on here? (does this type have a name?...)
- Do atmospheric CO2 measurements include a significant diurnal cycle?
- Are Toucans (Americas) and Hornbills (Asia/Africa) an example of convergent evolution?
- How do bionic arms work?
- Why do nuclei release energy when they fuse?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- What are the estimated thicknesses for northern sea-ice at the height of the Pleistocene glaciation, and how are those thicknesses estimated?
- Why are non-differentiable continuous functions integrable?
| Does heat, humidity, and other atmospheric variables affect wi-fi and other signals? Posted: 20 Sep 2017 07:36 PM PDT |
| Are there equations that model how rivers change their course over time? Posted: 21 Sep 2017 05:20 AM PDT I was looking at this picture, and it reminded me of the Kelvin–Helmholtz instability How accurate this idea? The KH-instability is only intended for use at the interface between two fluids, and the riverbed is solid. Are there good equations modeling how rivers change their course over time? [link] [comments]  |
| What elastic moduli are strain dependent? Posted: 21 Sep 2017 06:54 AM PDT Hi, I'll try and keep it brief; Which of the elastic moduli show a strong dependence on strain rate and magnitude? I know for a fact that the shear modulus does, do the bulk and young's modulus also? Some background to my question - I am working with both dynamic and static moduli at varying measurement frequency, and well aware of shear-modulus degradation with strain. But I was wondering about the others. If anyone can direct some reading my way that would be great; I have access to most journals and papers through my institution. Thanks [link] [comments]  |
| Where does the Higgs boson gets its own mass? Posted: 21 Sep 2017 03:11 AM PDT I was learning about the Higgs boson and read that it had mass but if everything got its mass from the Higgs boson and the Higgs field then how does a Higgs boson get mass? Does it self interact? Or does the Higgs Boson not have mass and can travel at light speed? [link] [comments]  |
| Posted: 20 Sep 2017 12:43 PM PDT From the Wikipedia entry on Schizophyllum commune
What does that mean? [link] [comments]  |
| Where does the theoretical "two week" limit on weather forecasting skill come from? Posted: 21 Sep 2017 04:53 AM PDT I'm familiar with Lorenz' chaos paper and ensemble forecasting in general but I have yet to find a reference that actually calculates the oft repeated "two week" theoretical limit on weather forecasting. Does anyone know of the original reference? For context, here are the final paragraphs from Ed Lorenz' seminal chaos paper:
[link] [comments]  |
| Do Most Comets Orbit in the Same Plane as the Planets? Posted: 21 Sep 2017 08:18 AM PDT |
| How different is our vision from the other apes? Posted: 21 Sep 2017 08:17 AM PDT |
| Does honey from different flowers taste different or do all bee "recipes" taste the same? Posted: 21 Sep 2017 08:12 AM PDT Similarly, do these differences affect pollen allergy sensitivity? [link] [comments]  |
| Where does the "blast" portion of a nuclear explosion come from? Posted: 20 Sep 2017 03:04 PM PDT In a chemical explosion, overpressure is generated by rapidly expanding gasses as the explosive reacts with Oxygen. I can see where the kinetic energy is produced there. In a nuclear explosion, it's a little bit fuzzier as to where the medium is getting the kinetic energy to produce a pressure wave. Is it coming from the expulsion of high-speed neutrons and fission products? Or is the radiation itself producing pressure from thermal expansion? [link] [comments]  |
| Posted: 20 Sep 2017 11:20 AM PDT I was wondering if large numbers of ships traveling together created issues for the ships behind them. Does wind change direction in between the boats of the fleet? Are there currents created by the front of the fleet that can cause problems for the rest of the fleet? Does that translate to larger ships today, like the ships the navy uses? [link] [comments]  |
| How do female mosquitoes know humans have blood to suck? Posted: 21 Sep 2017 04:42 AM PDT |
| How do your eyes prevent shaking while you're walking? Posted: 20 Sep 2017 05:49 PM PDT I've paid close attention to how some camera's now use OIS, or optical image stabilization, and EIS, or Electronic image stabilization and I was wondering why my vision isn't shaking while I'm walking. Is it some physical thing near my eyes stabilizing what I see or is that handled by the brain? [link] [comments]  |
| Does a volcanic eruption make another volcanic eruption more likely? Posted: 20 Sep 2017 01:48 PM PDT Clarification: Another eruption from a different volcano. [link] [comments]  |
| Posted: 20 Sep 2017 06:42 PM PDT Here is a picture. We strolled through the city and everywhere were people taking pictures of it. Clpud https://imgur.com/gallery/09tbN [link] [comments]  |
| Do atmospheric CO2 measurements include a significant diurnal cycle? Posted: 20 Sep 2017 11:58 AM PDT I know the annual cycle is obvious in CO2 concentrations. Is a diurnal cycle often visible either locally or globally? Also, what (roughly) is the mixing time scale for CO2 over the whole atmosphere? [link] [comments]  |
| Are Toucans (Americas) and Hornbills (Asia/Africa) an example of convergent evolution? Posted: 20 Sep 2017 09:53 AM PDT Both eat fruit/insects in various amounts depending on the species. Figs, etc. [link] [comments]  |
| Posted: 20 Sep 2017 10:11 AM PDT My understanding is people can control bionic arms the same way they control regular arms: through volition and transmitting neurological signals to various locations in the body. Where and how do bionic arms interface with the body? Do they read neurological signals directly? How? [link] [comments]  |
| Why do nuclei release energy when they fuse? Posted: 20 Sep 2017 11:16 AM PDT I understand that the binding energy increases, but this doesn't make sense to me. You need a lot of energy to break a small nucleus into its constituents to overcome the strong force, but why would "submitting" to the strong force and attracting cause energy to be released? Is this some sort of potential energy? (Like how work is needed to overcome gravity, but if an object "submits" to gravity and falls it releases its potential energy) Is it the case with all forces that when something submits to a force it releases its potential energy like that? [link] [comments]  |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 20 Sep 2017 08:07 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary 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: 20 Sep 2017 12:48 PM PDT I get how these estimates are calculated on land, on the basis of isostatic rebound notably. But how do we work that out over sea? [link] [comments]  |
| Why are non-differentiable continuous functions integrable? Posted: 20 Sep 2017 09:18 AM PDT We learnt that a |mod| function is continuous yet non-differentiable and as integrals are defined as "anti-derivatives" sooo how come we can integrate a mod function yet we can't differentiate it? [link] [comments]  |
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