My girlfriend insists on letting her restaurant leftovers cool to room temperature before she puts them in the refrigerator. She claims it preserves the flavor better and combats food born bacteria. Is there any truth to this?

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• My girlfriend insists on letting her restaurant leftovers cool to room temperature before she puts them in the refrigerator. She claims it preserves the flavor better and combats food born bacteria. Is there any truth to this?
• Can we transfer information through UV, Xray, and Gamma waves?
• If I have three different blankets, does it matter what order they are in?
• Why is it that men's sperm need to be at a lower temperature, while women's eggs are ok at body temperature?
• For how long of a time was the cosmic background radiation in the visible spectrum?
• Why wouldn't gravity counteract the heat death of the universe?
• What were barium platinocyanide plates used for BEFORE the discovery of XRays?
• Is there a universal way to represent large numbers?
• Can a star escape its galaxy like some planets escape their sun?
• Do people who are overweight require more sleep?
• Euler's identity: Huge coincidence or deep connection?
• Scientifically, how does tempered glass work?
• Why is gravitational mass proportional to inertial mass? Do both of them grow as an object reach relativistic speeds?
• How did early cyanobacteria develop the means for photosynthesis?
• What technology is used in automatic doors that actually opens the door?
• How did Planck calculate his constant?
• How would the common types of baseball pitches behave differently on Mars?
• Origin of Dengue Virus?
• Why do antacids taste sweet even though they are basic?
• Could Eagles see things like Planets???
• Baseball physics related: How much extra energy does a pitcher need to exert to get a fastball an extra 1mph over 100? how about another 1mph after that?
• Relationship between momentum and general momentum in the lagrange method for one dimension?

My girlfriend insists on letting her restaurant leftovers cool to room temperature before she puts them in the refrigerator. She claims it preserves the flavor better and combats food born bacteria. Is there any truth to this? Posted: 30 Oct 2015 11:42 PM PDT submitted by AMA_or_GTFO [link] [619 comments]

Can we transfer information through UV, Xray, and Gamma waves? Posted: 30 Oct 2015 09:55 PM PDT In class, we are currently learning about the physics of energy - Our definition for a wave is 'an oscillation/vibration that transfers energy/information through the medium in which it travels.' so is it possible to transfer information through UV, Xray, and Gamma waves? submitted by DarkAvenger225 [link] [3 comments]

If I have three different blankets, does it matter what order they are in? Posted: 30 Oct 2015 09:19 PM PDT I have a sheet, a blanket and a comforter, does it matter what order they are in or with and combination of the three have the same effect at keeping me warm? submitted by Crazyblazy395 [link] [2 comments]

Why is it that men's sperm need to be at a lower temperature, while women's eggs are ok at body temperature? Posted: 30 Oct 2015 06:48 AM PDT submitted by too_beaucoup [link] [15 comments]

For how long of a time was the cosmic background radiation in the visible spectrum? Posted: 31 Oct 2015 04:13 AM PDT And what would the sky have looked like? submitted by snnmnd [link] [1 comment]

Why wouldn't gravity counteract the heat death of the universe? Posted: 31 Oct 2015 01:21 AM PDT If you have bodies at a measurable distance with an infinite amount of time, wouldn't those bodies eventually be brought together by gravity? Red shift is known to increase the farther away a viewed system is, right? Why is the best explanation that it's moving away from us faster? We know light is effected by gravity; couldn't the red shift as we know it be a braking effect caused by gravitational fields and/or an accumulation of interference from space dust that we can't see or focus on at those distances? submitted by JViz [link] [3 comments]

What were barium platinocyanide plates used for BEFORE the discovery of XRays? Posted: 30 Oct 2015 04:20 PM PDT I know Wilhelm Rontgen happened to notice that these plates were glowing when he was experimenting with cathode tubes, but why did he have this plate to begin with? If he didn't know about Xrays yet, and radiation wasn't known at that time, why did he have plates that could pick up radiation? submitted by Yazzer [link] [6 comments]

Is there a universal way to represent large numbers? Posted: 31 Oct 2015 05:36 AM PDT Hey I don't know if this is the right place to ask this but I'm trying to find a way of representing values 10, 20, 50, 100 etc in a graphical way. Is there a universal way to represent high numbers simply? submitted by jedilion [link] [3 comments]

Can a star escape its galaxy like some planets escape their sun? Posted: 31 Oct 2015 12:49 AM PDT submitted by _inkrypted_ [link] [4 comments]

Do people who are overweight require more sleep? Posted: 31 Oct 2015 12:30 AM PDT It seems intuitively plausible - larger body, burns energy more quickly. What does science say on the matter? submitted by TrickstersAreCool [link] [1 comment]

Euler's identity: Huge coincidence or deep connection? Posted: 30 Oct 2015 03:22 PM PDT So we've all heard of the famous expression that relates five of some of the most important numbers in all of mathematics: eiπ+1=0. I'm just trying to wrap my head around what this identity means and how it is possible. I understand the derivation for it, but what I don't get is why all these numbers are related. How is it possible that e, a constant that shows up in compound interest, is connected to something as abstract as the imaginary unit i? Is this just a huge coincidence, or is there some fundamental connection between the principles of compound interest, circles, and imaginary numbers? edit: spelling submitted by estranged_quark [link] [8 comments]

Scientifically, how does tempered glass work? Posted: 30 Oct 2015 11:13 PM PDT I ask because last year on turkey day, my sister set a hot glass on the cold marble counter top and it basically exploded. However, today, I used the coffee pot and in doing so I dumped out the hot coffee that was left over and immediately put cold water in it with no problem. I did notice it making sounds, but of course I want to know why it didn't explode like the glass dish. Again, scientifically. Edit: counter top not counterpoint and some grammar. (probably still bad grammar) submitted by Remri [link] [4 comments]

Why is gravitational mass proportional to inertial mass? Do both of them grow as an object reach relativistic speeds? Posted: 30 Oct 2015 07:16 AM PDT If they both grow, how can we explain the strong gravitational field in the object's frame of reference? What's the difference between them on a fundamental level? submitted by gporafk [link] [10 comments]

How did early cyanobacteria develop the means for photosynthesis? Posted: 30 Oct 2015 07:55 PM PDT As a preface I am somewhat of an armchair scientist so please feel free to correct me anywhere I am mistaken. Please forgive any formatting problems as well, I'm on mobile at the moment. I understand that these algae were likely the first prolific organisms on Earth, and their presence provided our atmosphere with oxygen. If they processed carbon dioxide into oxygen the way we understand photosynthesis to work, where did the carbon dioxide come from? Was there enough of a presence of oxygen for it to bond with carbon to create CO2 in large enough quantities for this form of life to develop? Was it perhaps some positive feedback loop? I'm stuck in the thinking that CO2 requires O2, and yet CO2 is required to create O2 through photosynthesis. Does current science even have a plausible answer to this question? submitted by ironicspellingerorrs [link] [2 comments]

What technology is used in automatic doors that actually opens the door? Posted: 30 Oct 2015 09:54 AM PDT I don't mean how do you motion sensors work. After the motion detector detects motion, what technology is used to then open the door. submitted by jamaalwa [link] [10 comments]

How did Planck calculate his constant? Posted: 30 Oct 2015 09:36 PM PDT Considering the Wien approximation uses Planck's Constant, i am assuming this came after Planck Discovered his constant. I am curious as to how he derived his constant and when. Tried researching it but didn't get much luck. I am only a high school physics student so try not to be too crazy with the answers. submitted by Bearbusta [link] [3 comments]

How would the common types of baseball pitches behave differently on Mars? Posted: 31 Oct 2015 12:50 AM PDT Just a fun and curious question I was pondering, and hoping someone smarter than me could help me answer them. According to google, Mars' atmosphere is about 100 times thinner than Earth's, and about 37% the gravity. Would a curveball with forward spin actually curve, or is the atmosphere too thin for that? What about the magnus effect in a fastball? Are the winds strong enough that a knuckle ball, which doesn't spin at all, would be crazy like it is on Earth, or would it be nearly identical to the other pitches because the lack of atmosphere makes a ball's spin irrelevant? Are there things other than gravity, wind and atmosphere you have to consider? submitted by moeburn [link] [1 comment]

Origin of Dengue Virus? Posted: 30 Oct 2015 05:05 PM PDT I have a question that I wasn't able to find. Where does the Dengue Virus originate? By that I don't mean where the location origin was but rather how it came to existence. For a person to suffer from Dengue fever, he/she must be infected with the Dengue Virus, which is transmitted most commonly by the Aedes Aegypti mosquitoes. Based on my readings, the mosquitoes do not naturally carry the virus in them, they get infected themselves when the mosquitoes feed on a human having a dengue fever, then move on to infect other humans when the mosquitoes feed on other hosts. That is how the dengue fever is transmitted throughout the world. So what I'm confused on is that since the mosquitoes need to be infected by feeding on an infected human, and for the human to be infected he/she need to be bitten by an infected mosquito, how did the Dengue Virus first appear? submitted by Liu_Bing [link] [4 comments]

Why do antacids taste sweet even though they are basic? Posted: 30 Oct 2015 08:16 PM PDT submitted by Iceblade72 [link] [4 comments]

Could Eagles see things like Planets??? Posted: 30 Oct 2015 08:16 PM PDT So apparently eagles can spot a rabit from ~3km. As hums we cant do anything like that, however we can see the moon and some of its features, and the Jovian system of Jupiter isnt that much smaller than the moon. Would an eagle be able to make out any features or moons of Jupiter? Maybe even Saturn? We see them as only points of light, through a telescope much better but is this possible. I know Deep sky objects like galaxies and stuff would not work as their eyes "Aperture" is still like ours. Also apparently their color is much better. submitted by Windston57 [link] [5 comments]

Baseball physics related: How much extra energy does a pitcher need to exert to get a fastball an extra 1mph over 100? how about another 1mph after that? Posted: 30 Oct 2015 05:41 PM PDT I've noticed that there are heaps of 'hard throwing' pitchers over the years who consistently throw around 98-100 mph. Getting above 100 or even 101 seems incredibly difficult though. Does it become either geometrically or exponentially more difficult? air resistance, or something else maybe? or do pitchers just need to train harder? thanks! submitted by cardoor33 [link] [3 comments]

Relationship between momentum and general momentum in the lagrange method for one dimension? Posted: 30 Oct 2015 03:23 PM PDT Hello everyone! I've currently been reading up on the lagrange method due to personal interest, and came upon this. My question is, how does one derive K with respect to qdot properly, to find the realtionship between the momentum and general momentum? When I tried to find the derivative myself, I got this, where in which I didn't find the relation between the momentum and the general momentum like in (3.8). Thanks in advance! submitted by NomNomPancake [link] [3 comments]

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If you roll a die twice under the exact same circumstances, and I mean every possible thing is the same, would it produce the same result?

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• If you roll a die twice under the exact same circumstances, and I mean every possible thing is the same, would it produce the same result?
• If livers regenerate, would it be possible for me to donate half my liver, grow it back, then donate it again? If so, how many times can one repeat this process?
• Do our brains excrete a certain chemical when we learn?
• How do stars with 10's or even 100 solar masses form?
• NADH movement through the cytoplasm?
• Does an electric current induced through a metal change the tensile strength of that metal?
• When I hit the brakes on my car, the brakes turn my momentum into heat. Where does this energy go when I downshift and engine brake?
• Why doesn't a geocentric model of the universe explain redshift?
• When I listen to a song, do I hear one sound wave, or a bunch of sound waves (i.e. for each instrument)?
• If bacterial endospores are so difficult to kill, what keeps hospitals from becoming completely covered in dangerous organisms that won't be killed by anything other than lengthy sterilization?
• How far do particles need to be to transmit sound?
• I have heard of diseases that are "Tropical", being most prominent in hot and wet areas, are there such thing as Temperate Diseases?
• Can stable particles be formed from only neutrons?
• Why exactly doesn't blood coagulate in the human body?
• Can CNS overtraining from working out impact reaction time, brain function, etc.?
• Do electrons moving in their orbitals impart a gyroscopic effect on an atom?
• When I take a flash photo of reflective clothing, why does the surrounding area seem to go black?
• What are the differences between plate boundaries and faults (e.g., how deep into the earth each extends, origin, etc.)?
• Is it possible to "alloy" a metal with a molten salt/ionic liquid?
• How are the recommended daily servings of vegetables, fruits, etc. determined?
• Why should the LHC upgrade the luminosity?
• Why do children generally run higher fevers than adults?
• Do dissolved solids (I.E. sugar in coffee) have the same volume as their constituents?

If you roll a die twice under the exact same circumstances, and I mean every possible thing is the same, would it produce the same result? Posted: 29 Oct 2015 06:58 PM PDT I had always thought that yes, it would because if everything is the same then it couldn't possibly produce a different result. However someone said that this was untrue due to quantum mechanics, Being unsure of what exactly those are or how they affect things I wasn't sure. submitted by th4t5f1n3 [link] [341 comments]

If livers regenerate, would it be possible for me to donate half my liver, grow it back, then donate it again? If so, how many times can one repeat this process? Posted: 29 Oct 2015 08:30 PM PDT submitted by Panhead09 [link] [84 comments]

Do our brains excrete a certain chemical when we learn? Posted: 29 Oct 2015 09:42 PM PDT Just how our brains ooze serotonin when we fall in love and dopamine when we feel happy, do our brains pop out any specific chemicals when we learn something new or are interested by something? submitted by suzy9mm [link] [7 comments]

How do stars with 10's or even 100 solar masses form? Posted: 30 Oct 2015 12:11 AM PDT Hi, me and some friends just wondered how such heavy stars can even form. From my understanding a star that starts its nuclear fission process as it gathers mass starts to emit a given amount of radiation pressure. Wouldn't this pressure blow away all the remaining gas and stop the star from gathering mass and growing further? submitted by SwabianStargazer [link] [4 comments]

NADH movement through the cytoplasm? Posted: 30 Oct 2015 05:22 AM PDT When NADH is produced in glycolysis, we say that it then "goes into the mitochondria" to the ETC. Is this the result of random motion eventually getting it there, or is there a direct path? If it's directed, are there motor proteins moving it along, or how is this accomplished? (I can find a bunch online about how NADH then just passes the electrons on to another shuttle, rather than getting into the matrix itself. This question, though, is about motion to get the NADH shuttle over to the organelle in the first place. I have the same question about pyruvic acid making it to Krebs.) submitted by dbo340 [link] [1 comment]

Does an electric current induced through a metal change the tensile strength of that metal? Posted: 29 Oct 2015 05:41 PM PDT I was watching a video that talked about how the strength of a metal is based on its bonds and the arrangement of those bonds. How does a flowing current through a metal affect that tensile strength? Does it make any difference (even a negligible one), or is it completely unrelated? submitted by Mad_Gouki [link] [6 comments]

When I hit the brakes on my car, the brakes turn my momentum into heat. Where does this energy go when I downshift and engine brake? Posted: 29 Oct 2015 08:22 PM PDT Hoping for a more specific answer than "the transmission heats up" or anything like that. submitted by danthedan115 [link] [8 comments]

Why doesn't a geocentric model of the universe explain redshift? Posted: 29 Oct 2015 07:46 PM PDT submitted by IcarusIX [link] [16 comments]

When I listen to a song, do I hear one sound wave, or a bunch of sound waves (i.e. for each instrument)? Posted: 29 Oct 2015 01:21 PM PDT Is there a separate sound wave for say, guitar, voice, piano, bass, etc., or are all of the sounds combined into one wave? Is this even a relevant question or am I missing the whole concept? Does the mastering process have any bearing on this? submitted by bbbx31x12 [link] [6 comments]

If bacterial endospores are so difficult to kill, what keeps hospitals from becoming completely covered in dangerous organisms that won't be killed by anything other than lengthy sterilization? Posted: 29 Oct 2015 06:46 PM PDT From Wikipedia: An endospore is a dormant, tough, and non-reproductive structure produced by certain bacteria from the Firmicute phylum. The name "endospore" is suggestive of a spore or seed-like form (endo means within), but it is not a true spore (i.e., not an offspring). It is a stripped-down, dormant form to which the bacterium can reduce itself. Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall. One side then engulfs the other. Endospores enable bacteria to lie dormant for extended periods, even centuries. Astrophysicist Steinn Sigurdsson said "There are viable bacterial spores that have been found that are 40 million years old on Earth – and we know they're very hardened to radiation."[6] Common anti-bacterial agents that work by destroying vegetative cell walls do not affect endospores. Endospores are commonly found in soil and water, where they may survive for long periods of time. A variety of different microorganisms form "spores" or "cysts," but the endospores of low G+C gram-positive bacteria are by far the most resistant to harsh conditions. submitted by pukesickle [link] [4 comments]

How far do particles need to be to transmit sound? Posted: 29 Oct 2015 06:56 PM PDT My understanding is that sound travels throuh vibrating particles, our atmosphere on Earth being a good conductor of this because of the various gasses floating around. Do we know far awaythese particles need to be? If I was in a vacuum and released gas that could conduct sound, how long would it be before the particles spread out enough so that sound cannot be transmitted? submitted by TheEarthShallTremble [link] [3 comments]

I have heard of diseases that are "Tropical", being most prominent in hot and wet areas, are there such thing as Temperate Diseases? Posted: 29 Oct 2015 06:54 PM PDT submitted by haby112 [link] [4 comments]

Can stable particles be formed from only neutrons? Posted: 29 Oct 2015 05:28 PM PDT Neutrons have almost no charge and are attracted by strong nuclear forces. Shouldn't they be able to form large structures mostly free of protons? Is this what's going on inside a neutron star? Does a neutron star have one massive electron cloud? Is it possible to have particles composed of only neutrons at STP? Sorry if my thoughts seem scattered, but these thoughts popped into my head while trying to write the background for a paper on LFTRs for an environmental problems course I'm taking. Edit: can anybody also explain to me why even numbered isotopes are generally more stable than odd? submitted by Hahamlin [link] [6 comments]

Why exactly doesn't blood coagulate in the human body? Posted: 29 Oct 2015 04:32 PM PDT I know that when people take blood they have to keep an anticoagulant, but what about the human body keeps blood from coagulating? submitted by Sheepiebro [link] [4 comments]

Can CNS overtraining from working out impact reaction time, brain function, etc.? Posted: 29 Oct 2015 11:14 PM PDT submitted by ethanhonglongnguyen [link] [4 comments]

Do electrons moving in their orbitals impart a gyroscopic effect on an atom? Posted: 29 Oct 2015 12:32 PM PDT Just a random thought. submitted by aggierandy [link] [11 comments]

When I take a flash photo of reflective clothing, why does the surrounding area seem to go black? Posted: 29 Oct 2015 11:27 PM PDT I work at an apparel store that sells reflective running clothes. We were taking flash photos of them in store and I noticed that the surrounding area seemed to go almost pitch black, even though the room was well lit. I'm really curious how that happens. submitted by Tissuebox007 [link] [3 comments]

What are the differences between plate boundaries and faults (e.g., how deep into the earth each extends, origin, etc.)? Posted: 29 Oct 2015 05:29 PM PDT submitted by ZergUser [link] [1 comment]

Is it possible to "alloy" a metal with a molten salt/ionic liquid? Posted: 29 Oct 2015 08:50 AM PDT I recently built a small furnace for melting aluminum and noticed that it would also be capable (temperature-wise) of melting table salt, and was wondering what I would get if I mixed the two of them while molten. I have a feeling that molten aluminum and sodium chloride would undergo some kind of violent reaction at that temperature, but am wondering in general what you would get if you used something more inert like molten platinum. Once the mixture cooled, would the ions just be incorporated throughout the metal's crystal structure? Do any materials like this exist? submitted by uint65_t [link] [7 comments]

How are the recommended daily servings of vegetables, fruits, etc. determined? Posted: 29 Oct 2015 03:52 AM PDT And importantly, how much variance is there in the recommendations? As far as my knowledge goes, it seems like those recommendations are more than 60 years old (started in WWII), and a lot has changed in our understanding of nutrition since then. Thanks! submitted by curtdbz [link] [2 comments]

Why should the LHC upgrade the luminosity? Posted: 29 Oct 2015 09:19 AM PDT I was reading the news on CERN website: http://home.cern/about/updates/2015/10/lhc-luminosity-upgrade-project-moving-next-phase Luminosity is a crucial indicator of accelerator performance. It is proportional to the number of particles colliding within a defined amount of time. The High-Luminosity LHC will increase the luminosity by a factor of 10, delivering 10 times more collisions than the LHC would do over the same period of time. If they don't upgrade the luminosity and let the LHC run for 10 times as long will the results be the same? Could they do that and use the money instead to upgrade the energy of the collisions or something else? Thanks! and sorry for the english, it's not my first language. submitted by West4th [link] [4 comments]

Why do children generally run higher fevers than adults? Posted: 29 Oct 2015 06:08 PM PDT I used to run fevers over 100 degrees all the time as a child, but not anymore. What gives? submitted by Annelid7 [link] [1 comment]

Do dissolved solids (I.E. sugar in coffee) have the same volume as their constituents? Posted: 29 Oct 2015 10:20 AM PDT I know that a solid like sugar will have a less "efficient" volume due to gaps between each individual crystal, but disregarding that is there any less volume when a solid is dissolved into a liquid? submitted by Mstayt [link] [4 comments]

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Does sound stack?

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• Does sound stack?
• Why is it that propellers are usually in the front of airplanes but in back of submarines/ships?
• Why are acoustically guided weapons an option in the ocean but not in the air?
• Ask Anything Wednesday - Engineering, Mathematics, Computer Science
• How long until the universe's ambient temperature is 1 kelvin?
• When sending things to other planets, why do we choose not to use the moon as a mini gravity-assist? Surely it would just reduce fuel (even slightly) and thus reduce the mass of spacecraft?
• Can rare metals or other high atomic number metals ever become a negatively-charged ion?
• Why is UNIX so revolutionary?
• How will Cassini survive??
• What determines how many chromosomes a child will have if the parents do not have the same amount?
• What is the apex of the seal in this gif?
• How do computers store physically store data? What does data look like on the atomic level?

Does sound stack? Posted: 29 Oct 2015 06:00 AM PDT Let's say I have 2 speakers, each outputting 90dB @ 1m. If I were to measure the volume, would the volume be > 90dB? Or would the volume be 90dB? submitted by Shaken_U [link] [40 comments]

Why is it that propellers are usually in the front of airplanes but in back of submarines/ships? Posted: 28 Oct 2015 09:32 AM PDT Why can't you reverse it? (propellers in the back of airplanes and in the front of ships/submarines) submitted by 31bubba83 [link] [99 comments]

Why are acoustically guided weapons an option in the ocean but not in the air? Posted: 28 Oct 2015 10:45 AM PDT For example, most modern stealth warplanes take great care to minimize their infrared and radar signatures, but are still quite loud. Would it be possible to track these planes acoustically? submitted by M_Night_Shamylan [link] [26 comments]

Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 28 Oct 2015 08:02 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! submitted by AutoModerator [link] [94 comments]

How long until the universe's ambient temperature is 1 kelvin? Posted: 28 Oct 2015 07:07 AM PDT How long until the universe's ambient temperature is 1 kelvin? What about average temperature? submitted by julian88888888 [link] [24 comments]

When sending things to other planets, why do we choose not to use the moon as a mini gravity-assist? Surely it would just reduce fuel (even slightly) and thus reduce the mass of spacecraft? Posted: 28 Oct 2015 07:47 AM PDT submitted by hellpigsblack1 [link] [7 comments]

Can rare metals or other high atomic number metals ever become a negatively-charged ion? Posted: 28 Oct 2015 12:50 PM PDT I'm aware that things tend to get messier the further you go down the table (like how "unreactive" Xe can form XeF6) due to the added complexity of d and f orbitals. Are any of the more complex metal ions capable of becoming a stable negatively charged anion instead of their more common cationic states? submitted by superhelical [link] [10 comments]

Why is UNIX so revolutionary? Posted: 28 Oct 2015 09:19 AM PDT submitted by dontwaitesforme [link] [23 comments]

How will Cassini survive?? Posted: 28 Oct 2015 06:57 AM PDT So Cassini's about to plunge into one of Enceladus' ice plumes at 19,000 miles an hour. My question is... How will it survive that? Are the particles of ice THAT small?? Because if they're any bigger than a grain of sand, Cassini's done for, no? submitted by Stiqula [link] [4 comments]

What determines how many chromosomes a child will have if the parents do not have the same amount? Posted: 28 Oct 2015 07:43 AM PDT Starting back when nothing resembling humans existed, I'm curious as to how we came to have 23x2 chromosomes. I know that chromosomes can split, fuse and duplicate entirely but how were those passed on to children when the other parent most likely did not have that happen to them? And in the case they are inherited, how were they able to reproduce (not become sterile) without the corresponding chromosome inherited from the other parent? submitted by Twitchyy [link] [5 comments]

What is the apex of the seal in this gif? Posted: 28 Oct 2015 06:56 AM PDT My coworker and I are fascinated by the pure strength and coordination of the orca in this gif. Exactly how high was the seal thrown? From what we found on Wikipedia, a fully matured harbor seal can be over 6ft long and weigh over 250 lbs. Is the seal in the gif fully matured? What was the apex of the seal and how much force would be needed to get it there? http://imgur.com/gallery/ardT2Pm submitted by jayseaz [link] [6 comments]

How do computers store physically store data? What does data look like on the atomic level? Posted: 27 Oct 2015 09:13 PM PDT Since you need a hard drive to store it, data must have some physical form, right? submitted by Azyrk [link] [7 comments]

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