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 Topic: Is matter always perfectly conserved?

 (Read 6849 times)
  • 12 Next page « Previous thread | Next thread »
  • Is matter always perfectly conserved?
     OP - July 07, 2014, 09:13 PM
    Hello,

    I have a question for all devoted fans of physics on this forum.

    Is matter, in all contexts and circumstances, always perfectly conserved?

    If it is not, as in the case of for example when an electron meets a positron, where annihilation occurs and only photons are produced, then where does the 'matter' and/or mass go?  Does it disappear, obliterated completely out of existence forever?  If so, how can that be, as it has to be impossible for anything to disappear completely.  The world just doesn't work that way....

    So in essence, is the law of conservation of mass always perfectly true in all circumstances?
  • Is matter always perfectly conserved?
     Reply #1 - July 07, 2014, 09:18 PM
    The matter as far as I know in that example would turn into energy.

    Electrons - e-

    Protons - H+
  • Is matter always perfectly conserved?
     Reply #2 - July 07, 2014, 09:20 PM
    Descent, get in here!
  • Is matter always perfectly conserved?
     Reply #3 - July 07, 2014, 09:21 PM
    So either energy and/or mass is/are always perfectly conserved, in all contexts and circumstances?  It is impossible for things to be annihilated completely out of existence?
  • Is matter always perfectly conserved?
     Reply #4 - July 07, 2014, 09:22 PM


  • Is matter always perfectly conserved?
     Reply #5 - July 07, 2014, 09:23 PM
    The more general conservation law is mass-energy conservation (in isolated systems). Matter is not always conserved, like during low energy matter-anti-matter annihilation/creation. The photons produced have energy, but not mass.
  • Is matter always perfectly conserved?
     Reply #6 - July 07, 2014, 09:24 PM
    So entropy ^^^
  • Is matter always perfectly conserved?
     Reply #7 - July 07, 2014, 09:25 PM
    Radon123, meet Descent: boy-genius, voluntary doer of calculus.
  • Is matter always perfectly conserved?
     Reply #8 - July 07, 2014, 09:25 PM
    Quote from: Radon123 on July 07, 2014, 09:13 PM
    Hello,

    I have a question for all devoted fans of physics on this forum.

    Is matter, in all contexts and circumstances, always perfectly conserved?

    If it is not, as in the case of for example when an electron meets a positron, where annihilation occurs and only photons are produced, then where does the 'matter' and/or mass go?   .........

    As long as we don't blame allah for eating that disappeared mass  of electron and positron  and allah is nothing to with that process .. I am for every possible explanation Radon123., You have questions in variety of fields and that I think is a gift to an young person or to any person..

    anyways.. this electron-positron annihilation is a well investigated subject..  So why not start from here ??

    So what do you do? Do you work in a Physics department?  Are you in college or are you doing some MS  in Physics ??


    oops so guys are so  quick.. Now I know what you guys do  Cheesy
     
    Do not let silence become your legacy.. Question everything   
    I renounced my faith to become a kafir, 
    the beloved betrayed me and turned in to  a Muslim     
  • Is matter always perfectly conserved?
     Reply #9 - July 07, 2014, 09:28 PM
    So, Descent, nothing is actually ever lost in any circumstance/context?  Even in particle/anti-particle interactions, the mass is always converted to energy?  Nothing is actually ever truly 'annihilated' and/or destroyed and/or created?
  • Is matter always perfectly conserved?
     Reply #10 - July 07, 2014, 09:29 PM
    Quote from: Lilyesque on July 07, 2014, 09:24 PM
    So entropy ^^^

     Huh?
    Quote from: lua on July 07, 2014, 09:25 PM
    Radon123, meet Descent: boy-genius, voluntary doer of calculus.

    Radon123, meet Lua, exceptional Biochemist, also master flatterer. Grin
  • Is matter always perfectly conserved?
     Reply #11 - July 07, 2014, 09:30 PM
    That is very good!  Nice to meet you, Descent!  I love science, my specialty interest is Biology.
  • Is matter always perfectly conserved?
     Reply #12 - July 07, 2014, 09:31 PM
    Quote from: Descent on July 07, 2014, 09:23 PM
    The more general conservation law is mass-energy conservation (in isolated systems). Matter is not always conserved, like during low energy matter-anti-matter annihilation/creation. The photons produced have energy, but not mass.


    They can be used to create mass using that energy though right? Or is it just light?
  • Is matter always perfectly conserved?
     Reply #13 - July 07, 2014, 09:31 PM
    Quote from: Descent on July 07, 2014, 09:29 PM
    ???Radon123, meet Lua, exceptional Biochemist, also master flatterer. Grin


    It is very nice to meet you, Lua!  You are a biochemist!?  I love Biology, it is very nice.
  • Is matter always perfectly conserved?
     Reply #14 - July 07, 2014, 09:33 PM
    Quote from: Descent on July 07, 2014, 09:29 PM
    ???Radon123, meet Lua, exceptional Biochemist, also master flatterer. Grin


    Look who's talking! Grin

    Everyone always dismisses my compliments as flattery, but you will find that we have some really amazing people here, Radon.  yes
  • Is matter always perfectly conserved?
     Reply #15 - July 07, 2014, 09:34 PM
    Quote from: yeezevee on July 07, 2014, 09:25 PM
    As long as we don't blame allah for eating that disappeared mass  of electron and positron  and allah is nothing to with that process .. I am for every possible explanation Radon123., You have questions in variety of fields and that I think is a gift to an young person or to any person..

    anyways.. this electron-positron annihilation is a well investigated subject..  So why not start from here ??

    So what do you do? Do you work in a Physics department?  Are you in college or are you doing some MS  in Physics ??


    oops so guys are so  quick.. Now I know what you guys do  Cheesy
     


    Actually, I am going to a community college this Fall.  I plan to major in Biology.  Most of my knowledge I read in my free time, as it is a great interest.  I have 1,400 page pathology textbook that I read that is used as gold standard in medical schools, and I also like to read my 5,000 page psychiatry book as well.  I supplement these works with other books as well.
  • Is matter always perfectly conserved?
     Reply #16 - July 07, 2014, 09:35 PM
    Quote from: Descent on July 07, 2014, 09:29 PM
    ???Radon123, meet Lua, exceptional Biochemist, also master flatterer. Grin


    Sorry, wrong concept!!!!
  • Is matter always perfectly conserved?
     Reply #17 - July 07, 2014, 09:35 PM
    Quote from: lua on July 07, 2014, 09:33 PM
    Look who's talking! Grin

    Everyone always dismisses my compliments as flattery, but you will find that we have some really amazing people here, Radon.  yes


    Very nice!  Thank you very much!
  • Is matter always perfectly conserved?
     Reply #18 - July 07, 2014, 09:36 PM
    Quote from: Radon123 on July 07, 2014, 09:31 PM
    It is very nice to meet you, Lua!  You are a biochemist!?  I love Biology, it is very nice.


    Still a student, doin' some research, trying not to blow anything up.  yes I love it, too. Have you formally studied it, or do you have any plans to?
  • Is matter always perfectly conserved?
     Reply #19 - July 07, 2014, 09:37 PM
    Quote from: Radon123 on July 07, 2014, 09:34 PM
    Actually, I am going to a community college this Fall.  I plan to major in Biology.  Most of my knowledge I read in my free time, as it is a great interest.  I have 1,400 page pathology textbook that I read that is used as gold standard in medical schools, and I also like to read my 5,000 page psychiatry book as well.  I supplement these works with other books as well.


    Yay! You'll be great, you have just the kind of inquisitive mind that makes a good scientist.  dance
  • Is matter always perfectly conserved?
     Reply #20 - July 07, 2014, 09:42 PM
    What you studying lua?
  • Is matter always perfectly conserved?
     Reply #21 - July 07, 2014, 09:43 PM
    Quote from: Radon123 on July 07, 2014, 09:34 PM
    Actually, I am going to a community college this Fall.  I plan to major in Biology.  Most of my knowledge I read in my free time, as it is a great interest.  I have 1,400 page pathology textbook that I read that is used as gold standard in medical schools, and I also like to read my 5,000 page psychiatry book as well.  I supplement these works with other books as well.

    Radon123.... You have tremendous interest in variety of fields that are far away in real life.. If what you say is true., you are a gifted autistic personality. So if you use it properly with proper planning  you will shine in life..

    But please don't focus in this allah/god/religious mambo-jumbo.. Just curious., are your parents forcing you to go to Medical school?/

    with best wishes
    yeezevee
    Do not let silence become your legacy.. Question everything   
    I renounced my faith to become a kafir, 
    the beloved betrayed me and turned in to  a Muslim     
  • Is matter always perfectly conserved?
     Reply #22 - July 07, 2014, 09:44 PM
    You are a student!?!  Very nice!  

    Haha as an ex-Muslim I also try to avoid blowing things up haha!

    So far, I have taken one semester at local community college where I lived before.  It was OK, but we focused too much on plant biology in that class.  Plants do not interest me very much, I like the fields of molecular and micro biology, virology, bacteriology, anatomy and physiology, psychology, neuroscience, etc.

    I plan to attend my local community college this Fall.  I plan to major in Biology.  I am not sure as to what to do exactly with my future career, though.  I want to be a professor, perhaps of medicine, such as a professor of Pathology (also a Pathologist) at a very prestigious medical school.  I want to be a professor of Pathology because as a professor I do not think I will be burdened with so much paperwork like a typical physician is.  Furthermore, Pathologists are a special type of physician who really do not deal with (live) patients.  Especially considering and in particular Pathologists who are Professors, I will more be focusing on research rather than dealing with mountains upon mountains of paperwork and hard hours like a typical doctor does.

    How about you?  What are your future plans?
  • Is matter always perfectly conserved?
     Reply #23 - July 07, 2014, 09:45 PM
    Quote from: Lilyesque on July 07, 2014, 09:42 PM
    What you studying lua?


    I'm trying to get a master's in biochemistry. I totally skimped on my chemistry as an undergrad, though, and so I feel like most of what I'm really studying now is chemistry, and I dread the chem lab days!  Grin
  • Is matter always perfectly conserved?
     Reply #24 - July 07, 2014, 09:50 PM
    Quote from: Radon123 on July 07, 2014, 09:28 PM
    So, Descent, nothing is actually ever lost in any circumstance/context?  Even in particle/anti-particle interactions, the mass is always converted to energy?  Nothing is actually ever truly 'annihilated' and/or destroyed and/or created?

    Think of mass as a measure of objects or systems energy content. Less energy means less mass. Think combustion of wood. When you burn wood, the mass of the products will slightly less as some energy will be released as heat and visible light, calculated from the famous equation E=mc^2.
  • Is matter always perfectly conserved?
     Reply #25 - July 07, 2014, 09:51 PM
    Quote from: yeezevee on July 07, 2014, 09:43 PM
    Radon123.... You have tremendous interest in variety of fields that are far away in real life.. If what you say is true., you are a gifted autistic personality. So if you use it properly with proper planning  you will shine in life..

    But please don't focus in this allah/god/religious mambo-jumbo.. Just curious., are your parents forcing you to go to Medical school?/

    with best wishes
    yeezevee



    Thank you very much!  That is very nice!

    I am in the process of overcoming different paradigms that involve allah, islam, etc.  I figure that if I just focus on scientific laws and how they cannot be breached and how the so-called 'miracles' of islam, Christianity, etc. cannot possibly be true based on scientific laws, then I will be able to 'de brainwash' myself.

    No, my parents are not forcing me to go to medical school.  I have a desire to go to medical school myself.  Nevertheless, my parents would be very proud of me for becoming a Physician.  My family members and some of my friends come to me frequently for medical advice.  I enjoy receiving the attention, haha.
  • Is matter always perfectly conserved?
     Reply #26 - July 07, 2014, 09:53 PM
    Radon123, that's really great!

    I got the impression early on that microbiology was not typically a very rewarding field to get into in my country, but I absolutely loved all of my microbiology classes/labs. If you haven't had the chance to take one yet, they're very rewarding, especially if you take a lab that's all about using biochemical testing to identify some unknown. It was a lot of work and flowcharts, but it was probably the most fun I had in any lab as an undergrad.

    I get asked a lot, but I'm not really sure what I want to do. I like research and might want to do more of it, and I've even entertained the idea of trying for a PhD, but the truth is by this time I'm very burned out by my extra-long education path and I'm ready to work wherever I'm hired. Grin

    That's really cool, though, and good for you for starting at a community college. That's a very, very smart move to get all the classes you can out of the way without worrying about enormous debt. I'm sure you'll do great!
  • Is matter always perfectly conserved?
     Reply #27 - July 07, 2014, 09:56 PM
    Quote from: Radon123 on July 07, 2014, 09:51 PM
    ......... I enjoy receiving the attention, haha.

    Hmm .. apart from all that you are also an "attention seeker"..    Cheesy

    Just kidding.. you are a great guy..
    Do not let silence become your legacy.. Question everything   
    I renounced my faith to become a kafir, 
    the beloved betrayed me and turned in to  a Muslim     
  • Is matter always perfectly conserved?
     Reply #28 - July 07, 2014, 09:57 PM
    Quote from: Lilyesque on July 07, 2014, 09:31 PM
    They can be used to create mass using that energy though right? Or is it just light?

    Very recently, at Imperial, Breit-Wheeler pair production (photons converted to an electron-positron pair) was seen. So yes, if the experiment holds.
  • Is matter always perfectly conserved?
     Reply #29 - July 07, 2014, 10:02 PM
    ooooo
  • 12 Next page « Previous thread | Next thread »