Since everything has a gravitational force, is it reasonable to theorize that over a long enough period of time the universe will all come together and form one big supermass? |
- Since everything has a gravitational force, is it reasonable to theorize that over a long enough period of time the universe will all come together and form one big supermass?
- How fast does electricity move?
- Do both kidneys have the same chance of forming kidney stones?
- How does soft water cause pipe corrosion?
- How have scientists improved the efficiency of solar cells in the past, and how are scientists trying to improve the efficiency of solar cells today?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- Could secondary muons start a fission reaction?
- Is the sound of your voice genetic?
- Is their any record of ancient man realizing they were driving a species to extinction?
- How does an elephant move its trunk if the trunk doesn't have any bones to support the muscles?
- Are there any elements or compounds that were first discovered in space, other planets, comets?
- Why are multi-offspring births more common in animals than in humans?
- Is there a simple, cheap, relatively clean reaction to turn isolated H+ into hydrogen gas?
- What makes cancer so difficult to cure?
- Why is it more difficult to breathe warm air?
- Could loud sounds that cannot be heard by the human ear, from being too low or two high, still cause damage to one's ears?
- What is the actual scale of cells, cell walls, and surface proteins?
- Why do some beaches have finer sand than others?
- Do all diatomic molecules have centres of inversion?
- Why do cosmic ray vary with altitude and latitude?
- What physical changes occur during so-called "burn-in" procedure that supposedly sometimes helps reduce/eliminate coil whine/electrical buzz coming from Graphics Processing Units when they are under load?
| Posted: 15 May 2019 04:56 PM PDT |
| How fast does electricity move? Posted: 16 May 2019 02:43 AM PDT Let's say that I've got an electrical circuit that's a light year across with a light bulb on one end and a switch on the other end right next to me with a battery half way between (so it's a DC power source), all of which connected by super conducting wires. If I flick the switch how long will it take for the light to turn on? Would there be any difference in the time it would take to turn off? In addition to this does switching from DC to AC power make a difference? Does the distance of battery from the switch or light make a difference? [link] [comments]  |
| Do both kidneys have the same chance of forming kidney stones? Posted: 16 May 2019 07:29 AM PDT |
| How does soft water cause pipe corrosion? Posted: 16 May 2019 05:34 AM PDT I've also read that softened water doesn't cause corrosion, only naturally soft water, is this true and if so, why? [link] [comments]  |
| Posted: 15 May 2019 04:33 PM PDT Like, what specifically do solar researchers research on a day-to-day basis, and what strategies have they tried in the past? Also, what majors could I work toward in college if I wanted to help develop more efficient solar cells? (I'd guess electrical engineering or materials science, or even like physics or something, but I am not sure.) Thank you [link] [comments]  |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 15 May 2019 08:12 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology 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]  |
| Could secondary muons start a fission reaction? Posted: 15 May 2019 10:56 AM PDT If you flew a balloon with a bunch of uranium-235 in it high into the sky, could secondary muons have enough energy to split a nucleus? [link] [comments]  |
| Is the sound of your voice genetic? Posted: 15 May 2019 08:05 PM PDT |
| Is their any record of ancient man realizing they were driving a species to extinction? Posted: 15 May 2019 09:39 AM PDT |
| How does an elephant move its trunk if the trunk doesn't have any bones to support the muscles? Posted: 15 May 2019 09:40 AM PDT |
| Are there any elements or compounds that were first discovered in space, other planets, comets? Posted: 15 May 2019 08:50 PM PDT |
| Why are multi-offspring births more common in animals than in humans? Posted: 15 May 2019 07:52 PM PDT A quick Google search has only yielded that humans menstruate on a fixed cycle and only release one egg per cycle, and that for certain animals those things arent true, but...why? Is there some evolutionary reason for that? [link] [comments]  |
| Is there a simple, cheap, relatively clean reaction to turn isolated H+ into hydrogen gas? Posted: 15 May 2019 06:54 PM PDT Couldn't find one online except maybe with magnesium, only the half reaction of 2H+ + 2e- —> H2 And an opposite reaction using platinum: H2 — Pt —> 2 H+ + 2e- [link] [comments]  |
| What makes cancer so difficult to cure? Posted: 15 May 2019 06:05 PM PDT It seems that despite the huge amount of resources and money we throw at research towards a cure for cancer, we have yet to find a reliable solution without severe side effects. I understand that it is quite complex so I guess what I am really asking for is an everyday man's answer to a very complicated question. Why is cancer so difficult to cure? What makes it so difficult that even the best and brightest have yet to solve it? [link] [comments]  |
| Why is it more difficult to breathe warm air? Posted: 15 May 2019 05:58 PM PDT When I get into my car when the sun has been baking it all day, I feel like I can barely fill my lungs. In cool air, though, breathing is much more comfortable. Why is body-temperature air stifling vs cooler air? [link] [comments]  |
| Posted: 15 May 2019 10:19 AM PDT |
| What is the actual scale of cells, cell walls, and surface proteins? Posted: 15 May 2019 04:48 AM PDT Edit: I previously said "cell wall" when I meant "cell membrane." I'm taking a bio class and we look at a lot of diagrams of cells, cell membranes, etc. (like this) and it's got me wondering about the actual scale of these things. For example, in this diagram we only see six ACh-gated sodium channels in this neuromuscular junction. How many would there actually be in such a junction? Are the surface proteins actually about that size compared to the cell membrane? What about the ACh vesicles -- is that about the right size compared to the axon terminal, or are they actually much smaller or much larger? Also, in this illustration, we see three vesicles releasing ACh; is that representative of the amount of ACh that would be released for a single contraction? I've also been wondering about the relative sizes and numbers of surface proteins on a cell. Are the surface proteins few and far between, or are they really packed in there with little space between them? Take a look at this diagram -- they always draw individual phospholipids, and then proteins that are about the same size. Is that right? Wouldn't the proteins be monstrous compared to the phospholipids, to the extent that if you zoomed out far enough to see a surface protein you wouldn't be able to see individual membrane molecules? [link] [comments]  |
| Why do some beaches have finer sand than others? Posted: 15 May 2019 08:54 AM PDT For instance - outer banks NC has very coarse and rocky sand and beaches while most southern ca beaches I've gone to have very fine and soft sand. [link] [comments]  |
| Do all diatomic molecules have centres of inversion? Posted: 15 May 2019 10:37 AM PDT Do all diatomic molecules have centres of inversion? If not, how do you determine whether it has one or not? [link] [comments]  |
| Why do cosmic ray vary with altitude and latitude? Posted: 15 May 2019 09:18 AM PDT |
| Posted: 15 May 2019 04:54 AM PDT I've always wanted to know what precisely is going on from a scientific point of view during this procedure that involves putting a GPU under a heavy (graphics benchmarks or stress tests) prolonged (>8 hours and up to 48 hours) load, after which it is reported that sometimes coil whine/electrical buzz gets less loud and perceptible or even goes away. [link] [comments]  |
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