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  1. Naked Science Forum
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  4. How do we measure the energy of a photon?
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How do we measure the energy of a photon?

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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #580 on: 27/05/2020 21:35:14 »
Quote from: Kryptid on 27/05/2020 20:14:41
Quote from: mxplxxx on Today at 15:43:26
A light year is related to velocity. A photon that is currently a light year away will create the present if it interacts with you in a year's time. i.e. the present is proceeding at the speed of light.     

That still doesn't make sense. Time is not a velocity. Being related to velocity is not sufficient.

Quote from: mxplxxx on Today at 15:43:26
Not to worry, I am not sure about it myself. Maybe ResearchGate can help: https://www.researchgate.net/publication/327365074_Spin_and_orbital_angular_momentum_of_photons

What I can't make sense of is why you think the photon's intrinsic angular momentum can supply its direction.
You seem to be telling me you can't make sense of some of my posts. Noted, best I can do sorry.

« Last Edit: 27/05/2020 21:51:08 by mxplxxx »
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #581 on: 27/05/2020 21:44:08 »
Quote from: Bored chemist on 27/05/2020 21:29:35
Quote from: Kryptid on Today at 20:14:41
What I can't make sense of is why you think the photon's intrinsic angular momentum can supply its direction.
I presume he thinks it travels like a corkscrew.
YES - with good reason! See https://phys.org/news/2019-08-corkscrew-photons-spontaneous.html
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #582 on: 27/05/2020 21:51:29 »
Quote from: mxplxxx on 27/05/2020 21:35:14
You seem to be telling me you can't make sense of things. Noted.
No.
He is telling you the things you say do not make sense.
You also forgot to address these problems
Quote from: Bored chemist on 27/05/2020 10:28:58
Quote from: mxplxxx on 27/05/2020 07:23:37
Photons cannot be observed.
Yes they can.
In particular, if a gamma ray photon hits your eye you might actually see the scintillation.
Quote from: mxplxxx on 27/05/2020 07:23:37
If photons cannot be observed
They can be.
Quote from: mxplxxx on 27/05/2020 07:23:37
who is is to say photons can be created simultaneously?
Logic.
They are brought into being by the same event. It follows that they happen at the same time.
There's also experimental observation of this - used every day throughout the world in medical imaging.
https://en.wikipedia.org/wiki/Positron_emission_tomography#Emission

Why are you pretending that reality doesn't happen?


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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #583 on: 27/05/2020 22:02:23 »
Quote from: Bored chemist on 27/05/2020 21:29:35
Quote from: mxplxxx on Today at 15:43:26
A light year is related to velocity. A photon that is currently a light year away will create the present if it interacts with you in a year's time. i.e. the present is proceeding at the speed of light.
No, because
A light year "Bullet second" is related to velocity. A photon "Bullet " that is currently a second year away will create the present if it interacts with you in a year's second's time. i.e. the present is proceeding at the speed of light. a bullet.
Or a train, if it's important that you don't miss it.
Or an asbestos fibre, if that's what kills you.

Cute, but It won't be a bullet or a train or a fiber of asbestos that is interacting with you (you can't interact with an abstraction). It will most likely be a photon interacting. If you still disagree, tell me what is involved in a bullet/you interaction according to particle physics.
« Last Edit: 27/05/2020 23:11:00 by mxplxxx »
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Offline Kryptid

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Re: How do we measure the energy of a photon?
« Reply #584 on: 27/05/2020 22:23:24 »
Quote from: mxplxxx on 27/05/2020 22:02:23
fermions cannot interact.

Do you even know what a fermion is? This statement suggests that you don't.
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #585 on: 27/05/2020 22:46:22 »
Quote from: mxplxxx on 27/05/2020 22:02:23
fermions cannot interact.
How do you think it looks when you try to tell the grown ups that electrons don't interact?
do you think it is
Quote from: mxplxxx on 27/05/2020 22:02:23
Cute
?
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #586 on: 27/05/2020 22:48:07 »
Quote from: Bored chemist on 27/05/2020 21:51:29
You also forgot to address these problems
Quote from: Bored chemist on Today at 10:28:58
Quote from: mxplxxx on Today at 07:23:37
Photons cannot be observed.
Yes they can.
In particular, if a gamma ray photon hits your eye you might actually see the scintillation.
Quote from: mxplxxx on Today at 07:23:37
If photons cannot be observed
They can be.
Quote from: mxplxxx on Today at 07:23:37
who is is to say photons can be created simultaneously?
Logic.
They are brought into being by the same event. It follows that they happen at the same time.
There's also experimental observation of this - used every day throughout the world in medical imaging.
https://en.wikipedia.org/wiki/Positron_emission_tomography#Emission

Why are you pretending that reality doesn't happen?

« Last Edit: 31/05/2020 14:03:45 by Bored chemist »
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #587 on: 27/05/2020 22:49:40 »
Quote from: Kryptid on 27/05/2020 22:23:24
Quote from: mxplxxx on 27/05/2020 22:02:23
fermions cannot interact.

Do you even know what a fermion is? This statement suggests that you don't.
Dumb post. Do you really think I could attract 44000+ views without knowing basic physics? Can you please elucidate me as to how fermions interact, especially as all fermions obey the Pauli Exclusion principle.

PS A search on google "How do fermions interact" yields no usable results.
« Last Edit: 27/05/2020 23:12:49 by mxplxxx »
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Offline Kryptid

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Re: How do we measure the energy of a photon?
« Reply #588 on: 27/05/2020 23:34:50 »
Quote from: mxplxxx on 27/05/2020 22:49:40
Do you really think I could attract 44000+ views without knowing basic physics?

The number of views is not directly proportional to the knowledge of the poster.

Quote from: mxplxxx on 27/05/2020 22:49:40
Can you please elucidate me as to how fermions interact, especially as all fermions obey the Pauli Exclusion principle.

If they didn't interact, then the Pauli exclusion principle wouldn't even exist. One fermion obviously has to be able to interact with the other one, otherwise you could put as many fermions in one place and state as you wanted.
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #589 on: 28/05/2020 13:12:19 »
Quote from: mxplxxx on 27/05/2020 22:49:40
Do you really think I could attract 44000+ views without knowing basic physics?
Yes, I do think that.
That's what the evidence says.

How many of the 44000 are there to laugh at you?
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #590 on: 28/05/2020 15:15:27 »
From Catcher In The Rye "All morons hate it when you call them a moron.".
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Offline alancalverd

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Re: How do we measure the energy of a photon?
« Reply #591 on: 28/05/2020 16:01:42 »
Quote from: mxplxxx on 27/05/2020 22:49:40
Do you really think I could attract 44000+ views without knowing basic physics?
No problem. You can get a lot more, and even become President of the USA, without knowing anything.
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #592 on: 28/05/2020 17:44:40 »
Quote from: alancalverd on 28/05/2020 16:01:42
Quote from: mxplxxx on 27/05/2020 22:49:40
Do you really think I could attract 44000+ views without knowing basic physics?
No problem. You can get a lot more, and even become President of the USA, without knowing anything.
IYHO and what does this say about people who follow such a person :)?
« Last Edit: 28/05/2020 18:01:38 by mxplxxx »
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #593 on: 28/05/2020 19:23:21 »
Quote from: mxplxxx on 28/05/2020 17:44:40
Quote from: alancalverd on 28/05/2020 16:01:42
Quote from: mxplxxx on 27/05/2020 22:49:40
Do you really think I could attract 44000+ views without knowing basic physics?
No problem. You can get a lot more, and even become President of the USA, without knowing anything.
IYHO and what does this say about people who follow such a person :)?

Who cares?
I'm,m here to laugh at you and set the record straight for anyone else who comes by.

So. Once again...
Quote from: Bored chemist on 27/05/2020 22:48:07
Quote from: Bored chemist on 27/05/2020 21:51:29
You also forgot to address these problems
Quote from: Bored chemist on Today at 10:28:58
Quote from: mxplxxx on Today at 07:23:37
Photons cannot be observed.
Yes they can.
In particular, if a gamma ray photon hits your eye you might actually see the scintillation.
Quote from: mxplxxx on Today at 07:23:37
If photons cannot be observed
They can be.
Quote from: mxplxxx on Today at 07:23:37
who is is to say photons can be created simultaneously?
Logic.
They are brought into being by the same event. It follows that they happen at the same time.
There's also experimental observation of this - used every day throughout the world in medical imaging.
https://en.wikipedia.org/wiki/Positron_emission_tomography#Emission

Why are you pretending that reality doesn't happen?


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Offline Kryptid

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Re: How do we measure the energy of a photon?
« Reply #594 on: 28/05/2020 21:15:10 »
Quote from: mxplxxx on 28/05/2020 20:44:08
You obviously care about very little in life. You are a tiny, tiny person intellectually. You are an internet troll. You are a talentless mediocrity at best. You have not got a creative bone in your body. You get your kicks from trying to belittle people who care about making a difference in this world. In the process you are only belittling yourself. You constantly embarrass yourself with your stupidity and seem blithely unaware you are doing so. GET A LIFE.

Trying to correct the misconceptions of others is not being a troll.
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #595 on: 28/05/2020 21:21:59 »
Quote from: Kryptid on 28/05/2020 21:15:10
Trying to correct the misconceptions of others is not being a troll.
Why are you replying to a BoredChemist post? BoredChemist  has admitted in a previous post that he gets pleasure from belittling people.
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #596 on: 28/05/2020 21:28:24 »
Quote from: mxplxxx on 28/05/2020 20:44:08
Quote from: Bored chemist on 28/05/2020 19:23:21
Who cares?
I'm,m here to laugh at you and set the record straight for anyone else who comes by.
You obviously care about very little in life. You are a tiny, tiny person intellectually. You are an internet troll. You are a talentless mediocrity at best. You have not got a creative bone in your body. You get your kicks from trying to belittle people who care about making a difference in this world. In the process you are only belittling yourself. You constantly embarrass yourself with your stupidity and seem blithely unaware you are doing so. GET A LIFE.

You will not get any reaction from me in the future.
No.
You are the one who deliberately posts nonsense on the web to get a reaction.
That makes you the troll.
Quote from: mxplxxx on 28/05/2020 21:21:59
BoredChemist  has admitted in a previous post that he gets pleasure from belittling people.
Where?
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Offline Bored chemist

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Re: How do we measure the energy of a photon?
« Reply #597 on: 28/05/2020 21:30:14 »
Quote from: mxplxxx on 28/05/2020 20:44:08
You will not get any reaction from me in the future.
That's pretty clearly a childish excuse.
The real reason you don't reply is that you know I'm right.
You can't reply to my comments without admitting you were hopelessly wrong.
Quote from: Bored chemist on 27/05/2020 22:48:07
Quote from: Bored chemist on 27/05/2020 21:51:29
You also forgot to address these problems
Quote from: Bored chemist on Today at 10:28:58
Quote from: mxplxxx on Today at 07:23:37
Photons cannot be observed.
Yes they can.
In particular, if a gamma ray photon hits your eye you might actually see the scintillation.
Quote from: mxplxxx on Today at 07:23:37
If photons cannot be observed
They can be.
Quote from: mxplxxx on Today at 07:23:37
who is is to say photons can be created simultaneously?
Logic.
They are brought into being by the same event. It follows that they happen at the same time.
There's also experimental observation of this - used every day throughout the world in medical imaging.
https://en.wikipedia.org/wiki/Positron_emission_tomography#Emission

Why are you pretending that reality doesn't happen?


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Offline Kryptid

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Re: How do we measure the energy of a photon?
« Reply #598 on: 28/05/2020 21:33:29 »
Quote from: mxplxxx on 28/05/2020 21:21:59
Why are you replying to a BoredChemist post?

Because I see this same thing happen all too often here. When people with fringe/alternative views are called out by another member, they often resort to calling that member a troll.

Quote from: mxplxxx on 28/05/2020 21:21:59
BoredChemist  has admitted in a previous post that he gets pleasure from belittling people.

I would like to see where he posted that.
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Offline mxplxxx (OP)

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Re: How do we measure the energy of a photon?
« Reply #599 on: 28/05/2020 21:35:22 »
Quote from: Kryptid on 28/05/2020 21:33:29
I would like to see where he posted that.
https://www.thenakedscientists.com/forum/index.php?topic=75960.msg571703#msg571703
This is also relevant https://www.thenakedscientists.com/forum/index.php?topic=75960.msg578292;topicseen#msg578292
« Last Edit: 28/05/2020 22:22:56 by mxplxxx »
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