If we didn't use the base 10 and instead used a different base for our number system, could we potentially get whole numbers for things like Avogadro's Constant and the electronic charge? |
- If we didn't use the base 10 and instead used a different base for our number system, could we potentially get whole numbers for things like Avogadro's Constant and the electronic charge?
- In the Fight or Flight concept, why do some people fight while others fly? What goes on in the brain during this process that makes a person either fight or fly?
- When was it first determined that Mt. Everest was the highest point in the planet, and how were they able to know for sure?
- Why couldn't we reuse rocket stages?
- In the Holometer experiment, why would one of the laser beams arriving back at a slightly different time indicate the universe was quantized?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- Can computers keep getting faster?
- If 1 in 3 million people die by shark attack, do I really have a 1 in 3 million chance of dying by shark attack?
- Why do so many things follow Normal Distribution?
- Why does the tip of my nose get prickly the instant before I sneeze?
- Where do saltwater mammals such as whales, seals, etc, get drinking water?
- Are there any times when energy isn't conserved?
- If gravity works by warping space, why doesn't charge do the same thing?
- What's the correlation between sexual abuse and trauma and it causing mental illness (specifically long term mental illness and emotional damage)?
- Given conservation of energy, shouldn't the universe eventually collapse back into another big bang?
- Do men and women have mental/psychological traits that occur on average more for their respective sex than the other?
- Why are so many people allergic to peanuts, and why does it appear to be mostly a North American problem?
- What gives mint its "cool" sensation?
- Are the positions of the tree's branches determined by the tree's genetics, or its environment?
- Will you help me identify a snake? Pictures in comments.
| Posted: 12 Jan 2016 08:07 PM PST This occurred to me while taking some grade 11 science courses and seeing very similar numbers as fundamental constants in nature. Avogadro's constant to find moles is 6.02 X 1023 and the electronic charge is 1.602 X 10-19 [link] [100 comments]  |
| Posted: 12 Jan 2016 07:22 PM PST |
| Posted: 12 Jan 2016 01:32 PM PST |
| Why couldn't we reuse rocket stages? Posted: 13 Jan 2016 06:09 AM PST SpaceX and Blue Origin are important because they will decrease the cost of space travel. However, my question is, why was it not feasible before to have rockets that were reusable - i.e. parachutes to land them safely in the ocean/on the ground and fill them up with fuel again? [link] [1 comment]  |
| Posted: 13 Jan 2016 03:15 AM PST All the pop-sci articles I've read have a description of the set-up similar to this:
I have emboldened the sections I'm having trouble with. If the universe was discretised, why would that result in the splitter moving? Bounce two balls off a wall made of discrete lego blocks and they'll return to your hands at the same time. The lego blocks in the wall, or the pixels in a digital image, are discrete, but don't move. I could understand if they varied the distance for one of the split laser beams and found that the intensity of the recombined laser always varied at some integer multiple of a constant*Planck_length, but this is not their procedure. (Also, I assume there's a reason that wouldn't work?) [link] [2 comments]  |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 13 Jan 2016 07:05 AM PST 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] [comment]  |
| Can computers keep getting faster? Posted: 12 Jan 2016 08:42 AM PST or is there a limit to which our computational power will reach a constant which will be negligible to the increment of hardware power [link] [46 comments]  |
| Posted: 12 Jan 2016 07:52 PM PST Lately I've been thinking about statistics and how true they really are. As for the shark attack example, I imagine that that statistic came from the number of people killed by sharks in a year divided by the number of people. But what if I never go in the ocean? What if I am in all the time? Certainly this cannot be a real probability as the entire population isn't subject to the circumstances. What about a post on the front page right now that says "that if you drive one mile to the convenience store to buy a Powerball ticket, you are eight times more likely to die than win the jackpot" How does this account for your own driving habits? Surely my defensive driving affect this significantly? I know that accidents still happen, but is it actually OK to call this a probability? If 25% of the 7.2B people on Earth are African, that doesn't mean I have a 25% chance of being African. Rather, if you were to pick a person from Earth at random, the chance of that person being African is about 25%. Maybe I'm thinking about this wrong, but I really don't trust any of those statistics. I do think the likelihood of being killed by a shark is low, but I see this same rationale applied to a lot of things. [link] [9 comments]  |
| Why do so many things follow Normal Distribution? Posted: 12 Jan 2016 09:31 PM PST Many things in nature and economics seem to follow a Normal/Gaussian distribution. Is there a reason for this? [link] [6 comments]  |
| Why does the tip of my nose get prickly the instant before I sneeze? Posted: 12 Jan 2016 11:14 AM PST |
| Where do saltwater mammals such as whales, seals, etc, get drinking water? Posted: 12 Jan 2016 07:48 AM PST Do these animals not require water in the same way land mammals do? What about fish and other sea creatures? [link] [13 comments]  |
| Are there any times when energy isn't conserved? Posted: 12 Jan 2016 08:53 PM PST I was reading about relativity and got confused by the way in which they were talking about conservation. [link] [6 comments]  |
| If gravity works by warping space, why doesn't charge do the same thing? Posted: 12 Jan 2016 11:20 AM PST As I understand it, gravity works by influencing the space in our universe to curve, creating an attraction between massive objects. If thats the case, and if the electromagnetic force is much stronger than gravity, why don't we see the same effect between charged particles? [link] [7 comments]  |
| Posted: 12 Jan 2016 01:44 PM PST I am aware of women both in my family and in extended relationships that endured sexual abuse at some point in their lives that led to long-standing mental illness, be it borderline personality disorder, manic depression, anxiety disorder, post traumatic stress disorder, etc. One person in particular has basically been left mentally incompetent and has had a tremendous change in her person, leaving her unable to work and in a very low income position. She is legally disabled because of her mental state. She experienced frequent and brutal sexual abuse over the course of years during her time in a military branch as a younger woman. I often wonder if these events led to her being homeless and so unstable because of the emotional damage. Are there figures that indicate how many people suffer mental illness after being sexually assaulted? Is a person more likely to experience mental illness as a consequence from sexual abuse more so than other physical or verbal abuse? Are there any studies related to this? [link] [7 comments]  |
| Given conservation of energy, shouldn't the universe eventually collapse back into another big bang? Posted: 12 Jan 2016 12:57 PM PST Currently, everything appears to be flying away from the central point of the big bang at particularly fast speeds. As I understand, though, everything will be slowing down gradually as the very minor influences of gravity from everything in the other direction pulls back. Thus, it should eventually all reach a point where it stops and starts slowly coming back, presumably gaining the same momentum in the opposite direction. Eventually, this would lead to everything crashing back together at the central point with about the same speed and force of the big bang, but in reverse, which I would assume would generate another big bang. How far off am I? [link] [20 comments]  |
| Posted: 12 Jan 2016 10:11 AM PST I had a conversation with a friend of mine yesterday regarding the idea of a male and female brain. I don't think any traits are going to be exclusive or always present for either sex, but I do think that on AVERAGE women enjoy certain activities, products, etc more than men and vice versa. Also I wanted to ask if any of these traits are the result of biology. [link] [6 comments]  |
| Posted: 12 Jan 2016 09:27 AM PST |
| What gives mint its "cool" sensation? Posted: 12 Jan 2016 09:22 AM PST Is there a single chemical in mint that gives it its cool, minty flavor, similar to how capsaicin gives peppers their spicy, hot flavor? [link] [6 comments]  |
| Are the positions of the tree's branches determined by the tree's genetics, or its environment? Posted: 12 Jan 2016 09:36 AM PST Would a cloned tree have branches in the same place as its parent? [link] [4 comments]  |
| Will you help me identify a snake? Pictures in comments. Posted: 12 Jan 2016 06:59 AM PST Location is southern Nicaragua just across the border with Costa Rica very close to the forest. I think its a boa, but am concerned it might be a type of pit viper. Any help is appreciated. Thanks [link] [6 comments]  |
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