If you are allergic to bees, does that mean you are allergic to all types of bees? |
- If you are allergic to bees, does that mean you are allergic to all types of bees?
- Do cables between Europe and the Americas have to account for the drift of the continents when being laid?
- Is there an optimal speed for conserving fuel?
- Is it possible that all elements are radioactive at some point -- even if it took the age of the universe for just one atom to decay?
- Why can't I run at full speed for long durations?
- Do the beneficial microbes that live inside me have an "easy life" where they have unrestricted access to everything they want, or do they have to compete for resources like most other life forms on earth do?
- Why do some birds hop and other birds, like eagles, walk with one foot in front of the other?
- Is there a way compare the worth of some money ($5) across different countries and is there an index for this?
- NASA received message of Juno's successful orbit of Jupiter at 8:53 pm. PDT, July 4th. How are we able to tell when an satellite becomes 'captured' by a planet's gravitational field?
- How exactly does a gravity assist work? And how is one able to accomplish such a feat?
- How far back in time could a modern human travel and still understand the language?
- How does the thickness of skin change on the human body? For example is it a gradual change to different areas of the body or is there an immediate line where it changes in thickness?
- Can heavy-metal surgical implants, such as a titanium maxilla reconstructive plate or wire mesh produce any long-term neurological effects due to the deterioration of the implant? [Medicine]
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- Are there any diseases that usually affects plants that could be passed on to animals (humans included) through consumption and cause an infection (fatal or otherwise)?
- Does evaporation rate have anything to do with temperature ?
- Does Dyslexia affect people who read in other scripts?
- Do Brown Dwarfs have cores?
- What determines the limites in IR and UV range of vision for humans ? Why does it seems to vary between people ?
- Do Solar Systems have to be formed from an accretion disk?
- Rising and falling of a liquid/water in another liquid/water. what determines it?
- How can a counterexample to the Collatz(3n+1) conjecture be for a sequence to go towards infinity?
| If you are allergic to bees, does that mean you are allergic to all types of bees? Posted: 06 Jul 2016 06:12 AM PDT Sorry if that's not the correct tag. I guess what I'm really asking is, do all bees have the same type of venom? [link] [comments]  |
| Posted: 06 Jul 2016 07:53 AM PDT |
| Is there an optimal speed for conserving fuel? Posted: 06 Jul 2016 06:33 AM PDT Lets say i have to drive 200km, and can reasonably drive anywhere from 90km/h to 140km/h for the whole distance. Would there be an optimal speed to conserve fuel? Would driving the fastest mean I'm burning fuel for less time? Or would i be putting more stress on the engine, thus being less efficient? [link] [comments]  |
| Posted: 06 Jul 2016 06:01 AM PDT How do we know that all elements aren't radioactive? It seems rather arbitrary that some elements are radioactive while others are not. Wouldn't proton decay be a form of radioactivity? What makes one element radioactive while another element or different isotope is not? [link] [comments]  |
| Why can't I run at full speed for long durations? Posted: 06 Jul 2016 06:24 AM PDT I understand starting to sprint for a 5km run is not going to be efficient, but efficiency aside, why is there not a smooth curve of speed over time when you start running at full speed and you just get slower but you can run like that 'forever'? For some reason I can hardly sprint for 50 meters and HAVE to stop running then. Maybe if a lion was chasing me I can do a bit better, but with a lion that's always just a bit slower than I am, I doubt I can sprint for even a kilometre if I really have to. What is the maximum distance/time that humans can sprint (without pacing)? Why is there a limit and can't we sprint forever albeit at a continuously reduced pace? It seems like jogging may be the activity that mammals can do for long durations. Is sprinting something that is inherently 'damaging', like running nitro through your car all the time? [link] [comments]  |
| Posted: 06 Jul 2016 01:25 AM PDT |
| Why do some birds hop and other birds, like eagles, walk with one foot in front of the other? Posted: 05 Jul 2016 06:16 PM PDT |
| Posted: 06 Jul 2016 12:14 AM PDT It might be a weirdly-asked question, so I'll explain it here. Lets say my friend who came from Britain told me that he earns 2000 pounds a month and I come from Malaysia. I would not know how much that would be worth in Britain and the conversion to Malaysian currency tells me how much it's worth here, but I would not understand how much it would be worth for him. By worth I mean the value of that money relative to buying a particular thing, like RM0.20 for a candy. I hope you get it, how would you/ is there a way to compare the worth of some money across different countries? [link] [comments]  |
| Posted: 05 Jul 2016 05:36 PM PDT Hey guys. Awesome sub While I am familiar with the basics of astronomy, I admit I'm shoddy with rocket science. When putting a satellite such as Juno in the orbit of a plant many, many millions of miles away, how exactly does one measure the relative speeds against that needed to fall into orbit? Jupiter has had several missions and the correct quantities are fined-tuned by now, but they had to figure out the first time. [link] [comments]  |
| How exactly does a gravity assist work? And how is one able to accomplish such a feat? Posted: 05 Jul 2016 08:55 PM PDT |
| How far back in time could a modern human travel and still understand the language? Posted: 06 Jul 2016 01:57 AM PDT This can apply to any language that is spoken today. [link] [comments]  |
| Posted: 06 Jul 2016 05:01 AM PDT |
| Posted: 06 Jul 2016 02:30 AM PDT |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 06 Jul 2016 08:05 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: 06 Jul 2016 04:17 AM PDT |
| Does evaporation rate have anything to do with temperature ? Posted: 06 Jul 2016 06:39 AM PDT |
| Does Dyslexia affect people who read in other scripts? Posted: 06 Jul 2016 02:51 AM PDT So a little background. I'm an ESL teacher in South Korea, and I've noticed that some of my students show some signs of being dyslexic. They can read Korean perfectly fine but when it comes to reading English they have a really hard time. So I was wondering, does dyslexia affect people who use different scripts (such as hangul) or if it is isolated to Latin script? [link] [comments]  |
| Posted: 05 Jul 2016 09:34 PM PDT Since they're somewhere in between a star and gas giant, would a more star like brown dwarf lack a core, and more gas giant like brown dwarf have one? What about brown dwarfs smack dab in the middle? [link] [comments]  |
| Posted: 05 Jul 2016 01:04 PM PDT Following the discussion here. /u/luckyluke193 and me were wondering about the upper limits of the human vision in the near infrared. Wikipedia only says that we are limited to about 750 nm. From my experience in the lab there seems to be people who can and people who can't see our 835 nm laser. Why is there variability there ? [link] [comments]  |
| Do Solar Systems have to be formed from an accretion disk? Posted: 06 Jul 2016 04:27 AM PDT Are there any solar systems we know have which have planets with perpendicular (or near perpendicular) orbits? [link] [comments]  |
| Rising and falling of a liquid/water in another liquid/water. what determines it? Posted: 06 Jul 2016 04:19 AM PDT Okay. So when people talks about one thing sinking or floating in another substance, they talk about density. wood has a lower density than water, so it floats. same with ice and oil. even with gas, the same concept applies. why does a helium balloon fly up into the sky? because the density of helium is lower than air. so, what all these example have in common is that density determines the outcome. but so then why do some scientific talks talk about molecular weight? they even say "lighter/heavier than x" to talk about their moleuclar weights. does molecular weight directly have something to do with it? it seems like while density is always 100% correct on whether something rises/falls, basing it off molecular weight isnt always correct??? or is it? [link] [comments]  |
| How can a counterexample to the Collatz(3n+1) conjecture be for a sequence to go towards infinity? Posted: 05 Jul 2016 06:35 PM PDT According to this video https://youtu.be/K0yMyUn--0s?t=413 and other people, one way that the Collatz conjecture could be disproved is by finding a number that creates a loop such as 4 -> 2 -> 1 -> 4 -> 2 -> 1 ... or by finding a number that wanders off to infinity. What I don't understand is how it's even possible for any sequence to keep growing, given how the conjecture works. It states that every even number is divided by 2, and every odd is multiplied by 3, and then added by 1. So if you take any number, there's a 50% chance of it being even, and a 50% chance of it being odd. For every even number, there's a 50% chance that you can only divide by 2 one time. (2,6,10,14,18,22...) So every even number (after division by 2) has a 50% chance of becoming even, and a 50% chance of becoming odd. As for the 3n+1 part, that has a 100% chance of becoming an even number when n is odd. If evens have a 50% chance to become even again, and odds will always become even, it would seem that no matter what, you're always going to end up dividing by 2 more than you're going to be doing 3n+1. Would that not be a 2/3 chance to become even? Which would then mean it can't keep increasing forever? If this post made you facepalm in any way, I apologize, I'm no mathematician. [link] [comments]  |
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