Can visible light be affected by magnetism?












8














I would like to start by saying that I am not a physicist and I don't really know a lot about the subject!



We all know that without Earth's magnetic field, electromagnetic radiation from the sun would cook us within minutes. It is only the magnetic field that protects us from them. Since visible light is the same thing as cosmic rays, except that it's a different wavelength, I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?










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  • 14




    "We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
    – knzhou
    yesterday










  • Possible duplicates: Can a light be bent by a magnetic field? and links therein.
    – Qmechanic
    yesterday








  • 2




    visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
    – Kyle Kanos
    22 hours ago






  • 1




    @knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
    – The_Sympathizer
    13 hours ago












  • "light on physics" - nicely done
    – Mohammad Zuhair Khan
    7 hours ago
















8














I would like to start by saying that I am not a physicist and I don't really know a lot about the subject!



We all know that without Earth's magnetic field, electromagnetic radiation from the sun would cook us within minutes. It is only the magnetic field that protects us from them. Since visible light is the same thing as cosmic rays, except that it's a different wavelength, I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?










share|cite|improve this question









New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 14




    "We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
    – knzhou
    yesterday










  • Possible duplicates: Can a light be bent by a magnetic field? and links therein.
    – Qmechanic
    yesterday








  • 2




    visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
    – Kyle Kanos
    22 hours ago






  • 1




    @knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
    – The_Sympathizer
    13 hours ago












  • "light on physics" - nicely done
    – Mohammad Zuhair Khan
    7 hours ago














8












8








8


3





I would like to start by saying that I am not a physicist and I don't really know a lot about the subject!



We all know that without Earth's magnetic field, electromagnetic radiation from the sun would cook us within minutes. It is only the magnetic field that protects us from them. Since visible light is the same thing as cosmic rays, except that it's a different wavelength, I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?










share|cite|improve this question









New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I would like to start by saying that I am not a physicist and I don't really know a lot about the subject!



We all know that without Earth's magnetic field, electromagnetic radiation from the sun would cook us within minutes. It is only the magnetic field that protects us from them. Since visible light is the same thing as cosmic rays, except that it's a different wavelength, I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?







visible-light magnetic-fields






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New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|cite|improve this question









New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|cite|improve this question




share|cite|improve this question








edited 23 hours ago









Peter Mortensen

1,92211323




1,92211323






New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked yesterday









Maslin

1555




1555




New contributor




Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 14




    "We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
    – knzhou
    yesterday










  • Possible duplicates: Can a light be bent by a magnetic field? and links therein.
    – Qmechanic
    yesterday








  • 2




    visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
    – Kyle Kanos
    22 hours ago






  • 1




    @knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
    – The_Sympathizer
    13 hours ago












  • "light on physics" - nicely done
    – Mohammad Zuhair Khan
    7 hours ago














  • 14




    "We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
    – knzhou
    yesterday










  • Possible duplicates: Can a light be bent by a magnetic field? and links therein.
    – Qmechanic
    yesterday








  • 2




    visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
    – Kyle Kanos
    22 hours ago






  • 1




    @knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
    – The_Sympathizer
    13 hours ago












  • "light on physics" - nicely done
    – Mohammad Zuhair Khan
    7 hours ago








14




14




"We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
– knzhou
yesterday




"We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes." This simply isn't true. Where did you hear that?
– knzhou
yesterday












Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic
yesterday






Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic
yesterday






2




2




visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
– Kyle Kanos
22 hours ago




visible light is the same thing as cosmic rays, except that it's a different wavelength I'm supposing you never bothered to even read up on cosmic rays in the first place. Wikipedia is a decent start
– Kyle Kanos
22 hours ago




1




1




@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
13 hours ago






@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
13 hours ago














"light on physics" - nicely done
– Mohammad Zuhair Khan
7 hours ago




"light on physics" - nicely done
– Mohammad Zuhair Khan
7 hours ago










3 Answers
3






active

oldest

votes


















16














Apart from the misconceptions rectified in the other answers, here is an answer to the title of your question:



Yes, visible light can be affected by magnetic fields. A magnetic field can shift the lag between the clockwise and counterclockwise polarization component of light passing through a medium. This effect is known as the Faraday effect.



However, this does not allow you to directly block light, it only allows you to rotate the linear polarization of a light wave.



The medium can be very thin, if the distance is large enough (the magnetic field needs to be present over that distance as well), but there has to be some medium. Apparently it even happens in the interstellar medium and is used by astronomers to measure magnetic fields.






share|cite|improve this answer



















  • 4




    Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
    – Michael Seifert
    7 hours ago










  • @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
    – Graipher
    7 hours ago










  • @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
    – Graipher
    7 hours ago



















20














I think you have cosmic rays and electromagnetic radiation a little mixed-up.




We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes.




No - the Earth's magnetic field protects us from cosmic rays. High energy charged sub-atomic particles, mostly from the sun. The Earth's atmosphere does protect us from Ultra-Violet radiation (i.e. light) which would kill us.




Since visible light is the same thing as cosmic rays, except that its a different wavelength,




No, cosmic rays are charged sub-atomic particles (protons, electrons etc). Visible light, and UV, x-rays, gamma-rays, infrared, are all electromagnetic radiation of different wavelengths




I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?




Not directly. But magnetic fields do affect how light passes through certain materials. You can use this effect to make very fast shutters by passing light through a crystal and changing the magnetic field.






share|cite|improve this answer































    9














    In vacuum, the answer is “Yes, but only with an extremely strong magnetic field.”



    Light is an electromagnetic wave. Maxwell’s equations for the electromagnetic field are linear in the field strengths, so classically two electromagnetic fields just add together. This means, for example, that two light beams go right through each other without interacting, or a light beam goes through a static electric or magnetic field without interacting with it.



    This is no longer the case in quantum electrodynamics, where quantum effects such as virtual electron and positron pairs in the vacuum introduce nonlinearities. The electromagnetic field is no longer purely additive. You can theoretically get scattering of light by light, and scattering of light by static electric and magnetic fields.



    I don’t believe we have been able to observe this yet. This is because these nonlinear effects become significant only at enormous field strengths. The critical magnetic field strength is $m_e^2/ehbar$ in natural units, or 4.4 billion Tesla. Magnetars have fields this strong, so we may be able to observe such effects astronomically.






    share|cite|improve this answer























    • related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
      – uhoh
      12 hours ago













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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    16














    Apart from the misconceptions rectified in the other answers, here is an answer to the title of your question:



    Yes, visible light can be affected by magnetic fields. A magnetic field can shift the lag between the clockwise and counterclockwise polarization component of light passing through a medium. This effect is known as the Faraday effect.



    However, this does not allow you to directly block light, it only allows you to rotate the linear polarization of a light wave.



    The medium can be very thin, if the distance is large enough (the magnetic field needs to be present over that distance as well), but there has to be some medium. Apparently it even happens in the interstellar medium and is used by astronomers to measure magnetic fields.






    share|cite|improve this answer



















    • 4




      Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
      – Michael Seifert
      7 hours ago










    • @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
      – Graipher
      7 hours ago










    • @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
      – Graipher
      7 hours ago
















    16














    Apart from the misconceptions rectified in the other answers, here is an answer to the title of your question:



    Yes, visible light can be affected by magnetic fields. A magnetic field can shift the lag between the clockwise and counterclockwise polarization component of light passing through a medium. This effect is known as the Faraday effect.



    However, this does not allow you to directly block light, it only allows you to rotate the linear polarization of a light wave.



    The medium can be very thin, if the distance is large enough (the magnetic field needs to be present over that distance as well), but there has to be some medium. Apparently it even happens in the interstellar medium and is used by astronomers to measure magnetic fields.






    share|cite|improve this answer



















    • 4




      Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
      – Michael Seifert
      7 hours ago










    • @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
      – Graipher
      7 hours ago










    • @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
      – Graipher
      7 hours ago














    16












    16








    16






    Apart from the misconceptions rectified in the other answers, here is an answer to the title of your question:



    Yes, visible light can be affected by magnetic fields. A magnetic field can shift the lag between the clockwise and counterclockwise polarization component of light passing through a medium. This effect is known as the Faraday effect.



    However, this does not allow you to directly block light, it only allows you to rotate the linear polarization of a light wave.



    The medium can be very thin, if the distance is large enough (the magnetic field needs to be present over that distance as well), but there has to be some medium. Apparently it even happens in the interstellar medium and is used by astronomers to measure magnetic fields.






    share|cite|improve this answer














    Apart from the misconceptions rectified in the other answers, here is an answer to the title of your question:



    Yes, visible light can be affected by magnetic fields. A magnetic field can shift the lag between the clockwise and counterclockwise polarization component of light passing through a medium. This effect is known as the Faraday effect.



    However, this does not allow you to directly block light, it only allows you to rotate the linear polarization of a light wave.



    The medium can be very thin, if the distance is large enough (the magnetic field needs to be present over that distance as well), but there has to be some medium. Apparently it even happens in the interstellar medium and is used by astronomers to measure magnetic fields.







    share|cite|improve this answer














    share|cite|improve this answer



    share|cite|improve this answer








    edited 7 hours ago

























    answered yesterday









    Graipher

    47838




    47838








    • 4




      Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
      – Michael Seifert
      7 hours ago










    • @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
      – Graipher
      7 hours ago










    • @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
      – Graipher
      7 hours ago














    • 4




      Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
      – Michael Seifert
      7 hours ago










    • @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
      – Graipher
      7 hours ago










    • @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
      – Graipher
      7 hours ago








    4




    4




    Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
    – Michael Seifert
    7 hours ago




    Note that the Faraday effect requires the light to be traveling through a medium of some kind; the magnetic field wouldn't do anything "on its own" to light traveling through a vacuum.
    – Michael Seifert
    7 hours ago












    @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
    – Graipher
    7 hours ago




    @MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
    – Graipher
    7 hours ago












    @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
    – Graipher
    7 hours ago




    @MichaelSeifert It also depends on your definition of vacuum. The interstellar space is a pretty good vacuum for most purposes, but there ist still an observable Faraday effect.
    – Graipher
    7 hours ago











    20














    I think you have cosmic rays and electromagnetic radiation a little mixed-up.




    We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes.




    No - the Earth's magnetic field protects us from cosmic rays. High energy charged sub-atomic particles, mostly from the sun. The Earth's atmosphere does protect us from Ultra-Violet radiation (i.e. light) which would kill us.




    Since visible light is the same thing as cosmic rays, except that its a different wavelength,




    No, cosmic rays are charged sub-atomic particles (protons, electrons etc). Visible light, and UV, x-rays, gamma-rays, infrared, are all electromagnetic radiation of different wavelengths




    I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?




    Not directly. But magnetic fields do affect how light passes through certain materials. You can use this effect to make very fast shutters by passing light through a crystal and changing the magnetic field.






    share|cite|improve this answer




























      20














      I think you have cosmic rays and electromagnetic radiation a little mixed-up.




      We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes.




      No - the Earth's magnetic field protects us from cosmic rays. High energy charged sub-atomic particles, mostly from the sun. The Earth's atmosphere does protect us from Ultra-Violet radiation (i.e. light) which would kill us.




      Since visible light is the same thing as cosmic rays, except that its a different wavelength,




      No, cosmic rays are charged sub-atomic particles (protons, electrons etc). Visible light, and UV, x-rays, gamma-rays, infrared, are all electromagnetic radiation of different wavelengths




      I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?




      Not directly. But magnetic fields do affect how light passes through certain materials. You can use this effect to make very fast shutters by passing light through a crystal and changing the magnetic field.






      share|cite|improve this answer


























        20












        20








        20






        I think you have cosmic rays and electromagnetic radiation a little mixed-up.




        We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes.




        No - the Earth's magnetic field protects us from cosmic rays. High energy charged sub-atomic particles, mostly from the sun. The Earth's atmosphere does protect us from Ultra-Violet radiation (i.e. light) which would kill us.




        Since visible light is the same thing as cosmic rays, except that its a different wavelength,




        No, cosmic rays are charged sub-atomic particles (protons, electrons etc). Visible light, and UV, x-rays, gamma-rays, infrared, are all electromagnetic radiation of different wavelengths




        I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?




        Not directly. But magnetic fields do affect how light passes through certain materials. You can use this effect to make very fast shutters by passing light through a crystal and changing the magnetic field.






        share|cite|improve this answer














        I think you have cosmic rays and electromagnetic radiation a little mixed-up.




        We all know that without Earths magnetic field, electromagnetic radiation from the sun would cook us within minutes.




        No - the Earth's magnetic field protects us from cosmic rays. High energy charged sub-atomic particles, mostly from the sun. The Earth's atmosphere does protect us from Ultra-Violet radiation (i.e. light) which would kill us.




        Since visible light is the same thing as cosmic rays, except that its a different wavelength,




        No, cosmic rays are charged sub-atomic particles (protons, electrons etc). Visible light, and UV, x-rays, gamma-rays, infrared, are all electromagnetic radiation of different wavelengths




        I was wondering if it were possible to use magnetic fields (they would have to be pretty strong) to essentially "block" light the same way it blocks cosmic rays?




        Not directly. But magnetic fields do affect how light passes through certain materials. You can use this effect to make very fast shutters by passing light through a crystal and changing the magnetic field.







        share|cite|improve this answer














        share|cite|improve this answer



        share|cite|improve this answer








        edited 16 hours ago









        Ruslan

        9,19143069




        9,19143069










        answered yesterday









        Martin Beckett

        28.7k55485




        28.7k55485























            9














            In vacuum, the answer is “Yes, but only with an extremely strong magnetic field.”



            Light is an electromagnetic wave. Maxwell’s equations for the electromagnetic field are linear in the field strengths, so classically two electromagnetic fields just add together. This means, for example, that two light beams go right through each other without interacting, or a light beam goes through a static electric or magnetic field without interacting with it.



            This is no longer the case in quantum electrodynamics, where quantum effects such as virtual electron and positron pairs in the vacuum introduce nonlinearities. The electromagnetic field is no longer purely additive. You can theoretically get scattering of light by light, and scattering of light by static electric and magnetic fields.



            I don’t believe we have been able to observe this yet. This is because these nonlinear effects become significant only at enormous field strengths. The critical magnetic field strength is $m_e^2/ehbar$ in natural units, or 4.4 billion Tesla. Magnetars have fields this strong, so we may be able to observe such effects astronomically.






            share|cite|improve this answer























            • related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
              – uhoh
              12 hours ago


















            9














            In vacuum, the answer is “Yes, but only with an extremely strong magnetic field.”



            Light is an electromagnetic wave. Maxwell’s equations for the electromagnetic field are linear in the field strengths, so classically two electromagnetic fields just add together. This means, for example, that two light beams go right through each other without interacting, or a light beam goes through a static electric or magnetic field without interacting with it.



            This is no longer the case in quantum electrodynamics, where quantum effects such as virtual electron and positron pairs in the vacuum introduce nonlinearities. The electromagnetic field is no longer purely additive. You can theoretically get scattering of light by light, and scattering of light by static electric and magnetic fields.



            I don’t believe we have been able to observe this yet. This is because these nonlinear effects become significant only at enormous field strengths. The critical magnetic field strength is $m_e^2/ehbar$ in natural units, or 4.4 billion Tesla. Magnetars have fields this strong, so we may be able to observe such effects astronomically.






            share|cite|improve this answer























            • related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
              – uhoh
              12 hours ago
















            9












            9








            9






            In vacuum, the answer is “Yes, but only with an extremely strong magnetic field.”



            Light is an electromagnetic wave. Maxwell’s equations for the electromagnetic field are linear in the field strengths, so classically two electromagnetic fields just add together. This means, for example, that two light beams go right through each other without interacting, or a light beam goes through a static electric or magnetic field without interacting with it.



            This is no longer the case in quantum electrodynamics, where quantum effects such as virtual electron and positron pairs in the vacuum introduce nonlinearities. The electromagnetic field is no longer purely additive. You can theoretically get scattering of light by light, and scattering of light by static electric and magnetic fields.



            I don’t believe we have been able to observe this yet. This is because these nonlinear effects become significant only at enormous field strengths. The critical magnetic field strength is $m_e^2/ehbar$ in natural units, or 4.4 billion Tesla. Magnetars have fields this strong, so we may be able to observe such effects astronomically.






            share|cite|improve this answer














            In vacuum, the answer is “Yes, but only with an extremely strong magnetic field.”



            Light is an electromagnetic wave. Maxwell’s equations for the electromagnetic field are linear in the field strengths, so classically two electromagnetic fields just add together. This means, for example, that two light beams go right through each other without interacting, or a light beam goes through a static electric or magnetic field without interacting with it.



            This is no longer the case in quantum electrodynamics, where quantum effects such as virtual electron and positron pairs in the vacuum introduce nonlinearities. The electromagnetic field is no longer purely additive. You can theoretically get scattering of light by light, and scattering of light by static electric and magnetic fields.



            I don’t believe we have been able to observe this yet. This is because these nonlinear effects become significant only at enormous field strengths. The critical magnetic field strength is $m_e^2/ehbar$ in natural units, or 4.4 billion Tesla. Magnetars have fields this strong, so we may be able to observe such effects astronomically.







            share|cite|improve this answer














            share|cite|improve this answer



            share|cite|improve this answer








            edited yesterday

























            answered yesterday









            G. Smith

            4,138918




            4,138918












            • related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
              – uhoh
              12 hours ago




















            • related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
              – uhoh
              12 hours ago


















            related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
            – uhoh
            12 hours ago






            related: Inverse pair production w/hohlaraum as photon target - is this experiment going to be carried out? and What experiment does this “Tracing the History of Starlight” video try to explain?; both still in need of good answers. There's always pair production from the strong electric field near atomic nuclei.
            – uhoh
            12 hours ago












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