Do (fighter) airplanes really have an onboard system that warns if someone is target locking it, as computer games and movies make us believe? And if so, how does it work? |
- Do (fighter) airplanes really have an onboard system that warns if someone is target locking it, as computer games and movies make us believe? And if so, how does it work?
- Have humans always had an all year round "mating season", or is there any research that suggests we could have been seasonal breeders? If so, what caused the change, or if not, why have we never been seasonal breeders?
- On the ISS do they have to adjust for flatulence because of the closed loop environment?
- How do trees fight off disease?
- How do we know a blackhole is spinning?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- In Chemometrics, how does the Savitzky-Golag Derivation work? And what is Multiplicative Scatter Correction?
- What is it about sour candy that makes it sour, and how come some candies are crazy sour and some are disappointing?
- Is it possible to freeze water while electricity is flowing?
- When you eat something and get hives, what causes the hives to appear everywhere (even your legs)?
- Why can't phone chargers/ charging ports have a higher voltage, thus charging faster?
- How do ramjet and scramjet engines deal with the issue of initial propulsion? Do the crafts equipped with such engines need an auxiliary one?
- How do things like squash and pumpkins grow with a hollow cavity inside? What makes up the gas in there and how did it get inside?
- Let's say I scrape up my hand. How does the skin grow back exactly the same?
- Why are STI tests more accurate after months have passed, instead of a week, from a sexual encounter?
- How does light "bounce off" a material?
- Does your body produce insulin in response to consuming Stevia?
- Can binary stars have stable lagrange points? If so, have we ever found a planet in one of those lagrange points?
- Why are there larger meniscuses in smaller tubes than in larger tubes for water?
- Why is it that certain metals like zinc and iron are crucial for our body while other metals like lead and murcury are deadly?
- Are there any drugs that have stopped being used because the disease evolved total resistance to it?
- To which point(s) is the system of latitude and longitude fixed, since the continents are actually constantly moving?
- Is body fat percentage correlated with how long someone can endure starvation before death?
| Posted: 25 Sep 2018 02:51 PM PDT |
| Posted: 26 Sep 2018 05:01 AM PDT |
| On the ISS do they have to adjust for flatulence because of the closed loop environment? Posted: 25 Sep 2018 02:51 PM PDT |
| How do trees fight off disease? Posted: 25 Sep 2018 05:13 PM PDT I'm assuming trees don't have an immune system, so do they have any protection against disease? [link] [comments]  |
| How do we know a blackhole is spinning? Posted: 26 Sep 2018 01:12 AM PDT Iv always been interested in astronomy and physics. But iv been wondering how can you calculate a black hole is spinning or not? Is it by the mass orbeting the black hole? Does a spinning black hole have anything diffrent from a regular non spinning one? Do all black holes spin can a black hole spin at the speed of light would that be possible? [link] [comments]  |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 26 Sep 2018 08:12 AM PDT 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: 26 Sep 2018 04:20 AM PDT |
| Posted: 26 Sep 2018 06:48 AM PDT I mean comparing candies like Warheads and Sour Skittles (which are some serious pucker-inducing candies) to things like Sour Gummy Worms that aren't sour at all, just sprinkled with a tangy crystal substance? [link] [comments]  |
| Is it possible to freeze water while electricity is flowing? Posted: 25 Sep 2018 10:36 PM PDT |
| When you eat something and get hives, what causes the hives to appear everywhere (even your legs)? Posted: 25 Sep 2018 09:09 PM PDT |
| Why can't phone chargers/ charging ports have a higher voltage, thus charging faster? Posted: 25 Sep 2018 11:40 PM PDT |
| Posted: 26 Sep 2018 12:11 AM PDT Basically the title. I understand how ramjet and scramjet engines work, but I didn't find how the crafts equipped with these engines take off, basically. [link] [comments]  |
| Posted: 25 Sep 2018 02:23 PM PDT |
| Let's say I scrape up my hand. How does the skin grow back exactly the same? Posted: 25 Sep 2018 11:46 PM PDT |
| Posted: 26 Sep 2018 02:44 AM PDT Would it be possible to have STI tests that give accurate results instantly? [link] [comments]  |
| How does light "bounce off" a material? Posted: 25 Sep 2018 01:17 PM PDT I understand that when light hits a surface, some light is absorbed (by exciting electrons), and other light is reflected, and it's that reflected light that gives objects their colors. What I don't understand is how atoms/molecules actually "reflect" light? If the light cannot interact with a material, I would expect it to pass through, but this only happens with transparent materials. How do photons bounce off an atom, and what determines whether they bounce off or pass through? [link] [comments]  |
| Does your body produce insulin in response to consuming Stevia? Posted: 25 Sep 2018 02:14 PM PDT More generally, is it the taste of something sweet that generates insulin or does a carbohydrate need to be detected before that response initiates? [link] [comments]  |
| Posted: 25 Sep 2018 09:59 AM PDT |
| Why are there larger meniscuses in smaller tubes than in larger tubes for water? Posted: 25 Sep 2018 03:32 PM PDT |
| Posted: 25 Sep 2018 01:41 PM PDT |
| Are there any drugs that have stopped being used because the disease evolved total resistance to it? Posted: 25 Sep 2018 06:20 AM PDT |
| Posted: 25 Sep 2018 01:46 PM PDT Or in other words; how do I make use of the grid system when looking at a map of for example Pangea? [link] [comments]  |
| Is body fat percentage correlated with how long someone can endure starvation before death? Posted: 25 Sep 2018 11:06 AM PDT Let's say two people wash up on a deserted island. One with 7% body fat and one with 32% body fat. They have access to a reliable water source however there is no food on the island. Would the individual with a higher body fat percentage be able to survive through starvation longer than the other? Logically I would assume that because there is more energy stored and available for use they would survive longer, however I've not seen any meaningful data supporting that notion. [link] [comments]  |
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