I put a 1 liter bottle of water and two 0.5 liter bottles of water in the freezer. Will the two 0.5 liter bottles freeze faster as the 1 liter bottle and why (not)? |
- I put a 1 liter bottle of water and two 0.5 liter bottles of water in the freezer. Will the two 0.5 liter bottles freeze faster as the 1 liter bottle and why (not)?
- Does an object using a sling shot maneuver effect the orbit of the planet it is acted upon?
- I read that continental drift is one of the factors that allows earth to have a breathable atmosphere. Or at the very least, is necessary for life on the planet. Is this true? If so then why?
- Isn't gravity just a side-effect of the bending of space by objects with mass?
- Would a catalytic recombiner work on methane?
- Anyone remember the term used to refer to the kind of immunity that our microbiome provides for us?
- We know matter cannot be created nor destroyed, but what if it could be? What are the ramifications?Would the universe implode, or would there just be some new stuff around?
- What is the actual physical mass of a photon?
- What determines the speed at which water ripples travel at?
- Does the earth's rotation affect the observed magnitude of the planet's gravitational pull?
- Why would a pregnant woman crave things like dirt or glass, what's the brain's reasoning behind this?
- Can anyone explain the Georgi-Glashow Model, specifically, interpreting the graphs within?
- According to this video regarding how special relatively causes electromagnetism, what would happen if the "positively charged cat" were stationary and why?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- Wouldn't Timetravel(to the past) violate the Law of Conservation of Energy?
- why don't stars appear red but white? It is said that only red colour sustains when light travels a long distance!
- Do the Northern Lights affect atmospheric temperatures?
- Could a large amount of rain trigger an earthquake in California?
- How genetically similar must two organisms be to breed?
- Do animals experience Confirmation Bias?
- Does the brain compensate for volume in the right or left 'channels' when one ear or the other is muffled or obstructed for an extended period of time?
- Mechanics: Mathematically, what is the thought process behind moment of inertia and why is it used in mechanics of materials?
- Does the human brain differ on a physical level, before and after acquiring knowledge?
| Posted: 31 Dec 2015 04:18 AM PST |
| Does an object using a sling shot maneuver effect the orbit of the planet it is acted upon? Posted: 30 Dec 2015 11:44 AM PST As the title says, does using a planets gravitational pull effect the planets eventual orbit? Does is slow it down even just a little? If not why? What about the "equal and opposite reaction" law? [link] [55 comments]  |
| Posted: 30 Dec 2015 08:08 AM PST |
| Isn't gravity just a side-effect of the bending of space by objects with mass? Posted: 31 Dec 2015 07:08 AM PST |
| Would a catalytic recombiner work on methane? Posted: 30 Dec 2015 03:45 PM PST This relates to the methane storage losing inventory in California. Catalytic recombiners are used as an emergency way to get rid of hydrogen inside the containment of a nuclear power plant. Seems like the methane in jCA represents a huge risk of explosion, in addition to the greenhouse gas released if it does not explode or burn. If a recombiner would work, over what range of gas concentrations could it operate? Who makes them? [link] [4 comments]  |
| Anyone remember the term used to refer to the kind of immunity that our microbiome provides for us? Posted: 30 Dec 2015 09:30 AM PST Specifically the one that prevents the colonization of pathogens because of the presence of other bacteria in our guts. I can't seem to remember the term and it is frustrating me [link] [19 comments]  |
| Posted: 31 Dec 2015 06:19 AM PST |
| What is the actual physical mass of a photon? Posted: 30 Dec 2015 11:32 AM PST |
| What determines the speed at which water ripples travel at? Posted: 30 Dec 2015 12:51 PM PST When you throw a pebble into a lake, water ripples out from the point the pebble entered. When throwing a large rock into a lake , the water seems to ripple at the same speed (to me at least, correct me if I'm wrong). The only thing that seems to change is the height of the ripples. Why do the ripples move at a constant speed, and is there a way to change the speed of the ripples? Thanks! [link] [3 comments]  |
| Does the earth's rotation affect the observed magnitude of the planet's gravitational pull? Posted: 31 Dec 2015 03:07 AM PST This may or may not be a silly question, but my degree is in biology and I don't remember a ton from my two semesters of physics. Correct any of my assumptions if they are false. All massive objects exert a gravitational pull on other bodies. Does the earth's rotation result in any kind of an outward force that slightly affects the measured gravitational pull off the earth? Or in other words, would our weight be any different if the planet suddenly stopped rotating? I'm just thinking of things (like spinning tops or those carnival rides the spin you while you sit in a chair) and how objects connected to the spinning object experience an outward centrifugal force as a result of the rotation. Thanks for any responses! This was basically a shower thought that got me curious, and a little upset at myself because I know this is a pretty basic question. [link] [1 comment]  |
| Posted: 30 Dec 2015 07:31 AM PST |
| Can anyone explain the Georgi-Glashow Model, specifically, interpreting the graphs within? Posted: 30 Dec 2015 12:31 PM PST |
| Posted: 30 Dec 2015 01:56 PM PST This video cleverly explains how special relativity plays a role in causing electromagnetism. ***Actual explanation starts 1:07 However (and I can't confirm a reliable answer in the Youtube comments alone) what would actually happen if the "positively charged cat" was stationary? Would the cat then be attracted to the wire due to length contraction resulting in higher perceived density in negatively charged electrons? Thanks in advanced! [link] [7 comments]  |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 30 Dec 2015 07:06 AM PST 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] [9 comments]  |
| Wouldn't Timetravel(to the past) violate the Law of Conservation of Energy? Posted: 30 Dec 2015 08:21 AM PST My thoughts: If you "move" mass, or let's say me, back in time, so that I would be able to interact with, for example, my past self, wouldn't it cause a Paradox, since my body was(or will be?) missing in the future, while there's twice of my body in the past than there's supposed to be? I thought maybe it would cancel out, since my past self would go on to travel back, leaving the future with only 1 me. Thought's? Be harsh and show me contradictions :) [link] [4 comments]  |
| Posted: 30 Dec 2015 07:34 AM PST |
| Do the Northern Lights affect atmospheric temperatures? Posted: 30 Dec 2015 08:24 AM PST |
| Could a large amount of rain trigger an earthquake in California? Posted: 30 Dec 2015 08:05 AM PST The area of CA is 163,696 sq mi. If an avg of 8 inches of rain fell over the whole state. Would that be enough mass to cause a shift in the tectonic plates? A little more math. 62.4 lbs/cu ft x 8/12' x 5280'x5280' = 13.9 e9 lbs per sq mi. Total weight would be 2.278 E15 lbs or 1.14 E12 tons. 8 inches is conservative, and the distribution will not be equal across the whole state. [link] [7 comments]  |
| How genetically similar must two organisms be to breed? Posted: 30 Dec 2015 05:41 AM PST Things like crossbreeds in dogs are possible. Things like Ligers and Tigons are possible. Is there a known hard cutoff of how genetically similar organisms must be to breed? [link] [10 comments]  |
| Do animals experience Confirmation Bias? Posted: 30 Dec 2015 04:31 AM PST Trying to train my dog to ask when he wants to go outside or when he wants food. It isn't going great. This led me to wonder, does he misinterpret training attempts because of confirmation bias? [link] [9 comments]  |
| Posted: 30 Dec 2015 02:45 AM PST I had surgery removing a cyst that covered 80-90% of the right ear canal. It was there for more than 3 years. Now that I've recovered and removed the gauze it's almost as if the right ear is hearing things louder than the left ear. Is this merely placebo or is the brain biasing the right ear because it's been obstructed for so long? [link] [comment]  |
| Posted: 30 Dec 2015 01:52 AM PST I think that a lot of engineers just power through their mechanics of materials class, but this seems to be a concept that underlies everything we do. I can rattle off a few equations off the top of my head, but what is really happening kind of perplexes me. It's just this number we get that helps us to describe how stuff bends or breaks. For example, for a rectangle its BH3 /12. I'm going to assume that its a relationship between the base and height of a rectangle, thats fairly obvious because they are the only variables. What integration had to be made to get there though? The wikipedia article doesn't give something I'm really happy with. [link] [5 comments]  |
| Does the human brain differ on a physical level, before and after acquiring knowledge? Posted: 30 Dec 2015 04:40 AM PST With enough precise observation of the brain, would it be possible to tell the difference between one's brain before and after learning a single piece of information? And would it also be possible to figure out the contents of the information? And Conversely, would it be possible to make the brain "know" a certain information by manipulating the brain physically, say, on a molecular or atomic level? (not necessarily with current technology, are these theoretically possible?) [link] [3 comments]  |
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