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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