Discussion: MinuteEarth's newest YouTube video on brain mapping! |
- Discussion: MinuteEarth's newest YouTube video on brain mapping!
- How long will two 12v batteries heat a small room for?
- [Astronomy] Why is a parsec defined as 3.13 light years instead of a more rounded number?
- If the first law of thermodynamics states energy can't be created or destroyed in the Universe, how do we explain the Big Rip hypothesis? Where will all that energy go?
- Why are planets spherical? Are there any that aren't?
- Why does yellow against white appear to contrast so little compared to other colours against white when at equal intensities?
- Theoretically what would be the result of millions of atoms in a very small density all losing electrons simultaneously?
- What would happen if a Volcano formed underneath a huge oil/gas field and erupted?
- Why does boron tri-fluoride not form dative covalent bonds?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- What is the biological mechanism behind sensory adaptation?
- Are there any animals that are similar looking, or even the same, that have evolved separately and only have a very distant ancestor in common?
- Can sound travel around corners?
- In NDT's Inexplicable Universe, he says that quarks are bonded together such that the pull gets stronger as they get farther apart. As a consequence, inputting enough energy to separate them instantaneously creates a new partner for each quark. How do we know this? Have we tried it?
- Are there any multicellular organisms that make unusual use of trace elements?
- Do we have any predictive power to find out every molecule that will activate a certain receptor? As in all work done by a computer or on paper without any experimentation?
- What is a Tachyon?
- Is it common for other animals to have their closest biological relative be as distant as chimpanzees are from humans?
- Artificial sun by throwing fusion bomb in hydrogen cloud?
- Are dominant alleles always advantageous or can there be a dominant allele that is deleterious?
- Do ear infections temporarily change the frequency response of the ear?
| Discussion: MinuteEarth's newest YouTube video on brain mapping! Posted: 20 Sep 2016 09:44 AM PDT Hi everyone, our askscience video discussions have been hits so far, so let's have another round! Today's topic is MinuteEarth's new video on mapping the brain with brain lesions and fMRI. We also have a few special guests. David from MinuteEarth (/u/goldenbergdavid) will be around if you have any specific questions for him, as well as Professor Aron K. Barbey (/u/aron_barbey), the director of the Decision Neuroscience Laboratory at the Beckman Institute for Advanced Science and Technology at the University of Illinois. Our panelists are also available to take questions as well. In particular, /u/cortex0 is a neuroscientist who can answer questions on fMRI and neuroimaging, /u/albasri is a cognitive scientist! [link] [comments]  |
| How long will two 12v batteries heat a small room for? Posted: 21 Sep 2016 06:16 AM PDT I would like to set up a bike with a car alternator, put two 12v batteries in parallel, get an inverter and plug a low power heater into it to say, keep my (small)room temperature 22 Celsius in winter. How long would i have to cycle for to charge them?, to heat my room for how many hours? basically is it worth doing, or would i be exhausted for little result? [link] [comments]  |
| [Astronomy] Why is a parsec defined as 3.13 light years instead of a more rounded number? Posted: 20 Sep 2016 09:07 AM PDT |
| Posted: 20 Sep 2016 07:53 AM PDT |
| Why are planets spherical? Are there any that aren't? Posted: 20 Sep 2016 07:53 AM PDT It may not be a perfect sphere, but it seems like most (maybe all?) planets are relatively spherical. Why? [link] [comments]  |
| Posted: 20 Sep 2016 05:29 AM PDT I just saw this gif https://imgur.com/gallery/rm2PF35, and was curious why yellow always seems to appear so faint against a white background. [link] [comments]  |
| Posted: 21 Sep 2016 12:43 AM PDT The title may be confusing, and I didn't know how to properly word it, so I'll provide an example. I'm writing a novel in which, "magic" wielders essentially steal the electrons from an atom and transmute them to other forms of energy (Obviously not 100% scientifically plausible, hence "magic.") My question then being, what would be the consequences of a scenario where one of these "wizards" stole too many electrons in a very small area (~1 cubic cm of air)? If this isn't even close to a plausible scenario where one could produce energy, how would one go about harvesting electrical energy from positively charged ions "magically," and what would the consequences of such an action entail? I know it's a wonky question, but I'm trying to create a somewhat physical interpretation of magic. [link] [comments]  |
| What would happen if a Volcano formed underneath a huge oil/gas field and erupted? Posted: 21 Sep 2016 08:01 AM PDT |
| Why does boron tri-fluoride not form dative covalent bonds? Posted: 20 Sep 2016 08:34 AM PDT We draw boron tri-fluoride like this but why does one of the fluoride not form a dative bond in favor of the boron? [link] [comments]  |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 21 Sep 2016 08:04 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]  |
| What is the biological mechanism behind sensory adaptation? Posted: 20 Sep 2016 07:25 AM PDT My question is specifically geared toward visual adaptation, which occurs in the rare case of opthalmoplegia, leading to a loss of vision. Why is it, that lack of saccadic eye movements lead to a loss of vision? What is the biological mechanism behind such loss? Is it at all related to the outflow of chloride ions without repolarization? [link] [comments]  |
| Posted: 20 Sep 2016 04:15 AM PDT Alternative question if that isn't clear: Is it possible, or has it already happened, for two animals to have evolved completely separately in different places with only a very distant common ancestor? I understand that everything has a common ancestor eventually, but I would be interested to know if say we went as distant as the common ancestor between a human and an alligator - could two creatures with seemingly no evolution in common evolve to the same point? [link] [comments]  |
| Can sound travel around corners? Posted: 20 Sep 2016 06:02 PM PDT Say I am standing around a corner from someone, next to a solid sound proof brick wall and there is nothing else around for miles. If I say something will the sound travel around the corner and be heard by the other person or will they not be able to hear me as there is nothing around to bounce the sound off? [link] [comments]  |
| Posted: 20 Sep 2016 11:56 AM PDT |
| Are there any multicellular organisms that make unusual use of trace elements? Posted: 20 Sep 2016 09:30 AM PDT By "unusual use" I mean atypical usage in cellular structures, metabolism, enzymes, or metalloproteins. I know there are all sorts bacteria that do strange things like Uranium reduction, but I'm more interested in instances of unusual usage in multicellular organisms. [link] [comments]  |
| Posted: 20 Sep 2016 01:41 PM PDT Do we have any methods for finding such things out or delineating the reasons they all activate the receptor from a chemistry standpoint? [link] [comments]  |
| Posted: 20 Sep 2016 05:03 PM PDT |
| Posted: 20 Sep 2016 10:29 AM PDT Chimpanzees are the closer to humans than any other extant species in terms of shared DNA and where they would fall on a taxonomy chart. But just looking at the two species, they seem to be very, very different. Is the biological distance between humans and chimpanzees as wide as it seems when compared to the distances between other animals and their "relatives"? Are humans and chimpanzees actually really close, and it's just bias because I'm one of them? Or is this distance par for the course, and all the animals that look similar are in fact as different as humans are from chimpanzees? [link] [comments]  |
| Artificial sun by throwing fusion bomb in hydrogen cloud? Posted: 21 Sep 2016 12:45 AM PDT Hi i was just thinking about random things and I was wondering if we could create a "artificial" sun by throwing a hydrogen bomb in a hydrogen cloud? Are these clouds dense enough or would the bomb just push it all away? And if it was dense enough it would probably form a sun itself(?) (I know that it's impossible for us right now because of the distance but it's only theoretical) [link] [comments]  |
| Are dominant alleles always advantageous or can there be a dominant allele that is deleterious? Posted: 20 Sep 2016 10:18 AM PDT |
| Do ear infections temporarily change the frequency response of the ear? Posted: 20 Sep 2016 01:52 PM PDT |
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