Can visible light be affected by magnetism?
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
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
asked Dec 24 at 17:44
Maslin
1605
New contributor
Maslin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
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
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
asked Dec 24 at 17:44
Maslin
1605
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.
18
"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
Dec 24 at 17:57
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
1
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37
add a comment |
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
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
asked Dec 24 at 17:44
Maslin
1605
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
visible-light magnetic-fields
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
asked Dec 24 at 17:44
Maslin
1605
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.
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
asked Dec 24 at 17:44
Maslin
1605
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.
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
edited Dec 25 at 2:29
Peter Mortensen
1,92411323
1,92411323
asked Dec 24 at 17:44
Maslin
1605
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 Dec 24 at 17:44
Maslin
1605
asked Dec 24 at 17:44
Maslin
1605
1605
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.
18
"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
Dec 24 at 17:57
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
1
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37
add a comment |
18
"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
Dec 24 at 17:57
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
1
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37
18
18
"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
Dec 24 at 17:57
"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
Dec 24 at 17:57
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
1
1
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37
add a comment |
3 Answers
3
active
oldest
votes
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.
answered Dec 24 at 19:37
Graipher
49838
6
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
add a comment |
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.
edited Dec 25 at 9:09
Ruslan
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
add a comment |
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.
answered Dec 24 at 18:38
G. Smith
4,263919
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
Dec 25 at 12:56
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
answered Dec 24 at 19:37
Graipher
49838
6
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
add a comment |
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.
answered Dec 24 at 19:37
Graipher
49838
6
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
add a comment |
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.
answered Dec 24 at 19:37
Graipher
49838
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.
answered Dec 24 at 19:37
Graipher
49838
edited Dec 25 at 18:20
answered Dec 24 at 19:37
Graipher
49838
answered Dec 24 at 19:37
Graipher
49838
answered Dec 24 at 19:37
Graipher
49838
49838
6
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
add a comment |
6
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
6
6
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
Dec 25 at 18:13
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
Dec 25 at 18:13
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@MichaelSeifert Yes, as stated in the answer and the linked Wikipedia article. Edited to mention it again in the last paragraph.
– Graipher
Dec 25 at 18:20
@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
Dec 25 at 18:21
@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
Dec 25 at 18:21
add a comment |
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.
edited Dec 25 at 9:09
Ruslan
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
add a comment |
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.
edited Dec 25 at 9:09
Ruslan
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
add a comment |
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.
edited Dec 25 at 9:09
Ruslan
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
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.
edited Dec 25 at 9:09
Ruslan
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
edited Dec 25 at 9:09
Ruslan
9,20143070
edited Dec 25 at 9:09
Ruslan
9,20143070
edited Dec 25 at 9:09
Ruslan
9,20143070
9,20143070
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
answered Dec 24 at 17:57
Martin Beckett
28.8k55485
28.8k55485
add a comment |
add a comment |
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.
answered Dec 24 at 18:38
G. Smith
4,263919
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
Dec 25 at 12:56
add a comment |
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.
answered Dec 24 at 18:38
G. Smith
4,263919
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
Dec 25 at 12:56
add a comment |
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.
answered Dec 24 at 18:38
G. Smith
4,263919
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.
answered Dec 24 at 18:38
G. Smith
4,263919
edited Dec 24 at 21:00
answered Dec 24 at 18:38
G. Smith
4,263919
answered Dec 24 at 18:38
G. Smith
4,263919
answered Dec 24 at 18:38
G. Smith
4,263919
4,263919
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
Dec 25 at 12:56
add a comment |
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
Dec 25 at 12:56
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
Dec 25 at 12:56
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
Dec 25 at 12:56
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Maslin is a new contributor. Be nice, and check out our Code of Conduct.
Maslin is a new contributor. Be nice, and check out our Code of Conduct.
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18
"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
Dec 24 at 17:57
Possible duplicates: Can a light be bent by a magnetic field? and links therein.
– Qmechanic♦
Dec 24 at 18:08
1
@knzhou : Sadly, I suspect from an old movie. One rather light on physics, and heavy on fluff.
– The_Sympathizer
Dec 25 at 11:37