Question : What is it ? ~ that we cannot look at light for a long time ?

Blue light can cause a harmful chemical reaction in the eyes which only occurs in the presence of blue light.

Blue light can cause a harmful chemical reaction in the eyes which only occurs in the presence of blue light.

What about the impact of the photons ?

What about the impact of the photons ?​

 

 

Very powerful light could cause damage you can burn the eye. Also there could be other light which might cause reactions but blue light in perticular has been identified as being harmful.

 

 

Very powerful light could cause damage you can burn the eye. Also there could be other light which might cause reactions but blue light in perticular has been identified as being harmful.

but what is the function of photons?

Light is photons

You could rewrite the earlier replies along these lines

"Blue light photons can cause a harmful chemical reaction in the eyes which only occurs in the presence of blue photons light.".

Light is photons

You could rewrite the earlier replies along these lines

"Blue light photons can cause a harmful chemical reaction in the eyes which only occurs in the presence of blue photons light.".

how does it occur technically , meaning ; how is the work done ~ is the photons spinning

Edited May 29, 20178 yr by Roger Dynamic Motion

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Moderator Note

Moved to biology

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Edited May 29, 20178 yr by Manticore

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Posted Today, 04:33 PM

John Cuthber, on 29 May 2017 - 4:27 PM, said:

Light is photons

You could rewrite the earlier replies along these lines

"Blue light photons can cause a harmful chemical reaction in the eyes which only occurs in the presence of blue photons light.".

how does it occur technically , meaning ; how is the work done ~ is the photons spinning?

Edited May 29, 20178 yr by Roger Dynamic Motion

how is the work done​

 

 

The interaction of photon waveforms and electron waveforms leads to a redox reaction through constructive and destructive interference.

Edited May 29, 20178 yr by fiveworlds

 

 

The interaction of photon waveforms and electron waveforms leads to a redox reaction through constructive and destructive interference.

But ~ an Em, is not associated with electron.

But ~ an Em, is not associated with electron.

EM absorption in a molecule is.

EM absorption in a molecule is.

 

You mean ,,• if the the x-ray energy is given to an electron, it is absorptive and called photo ionization.

You mean ,,• if the the x-ray energy is given to an electron, it is absorptive and called photo ionization.

We're talking about visible light, unless you're in the habit of staring at x-ray sources.

To the OP: Are you at least familiar with the different types of photoreceptors in the retinas of our eyes, the cones and rods, and how there are different types of cone receptors, one for each of the three primary colors?

Edited May 30, 20178 yr by iNow

Unless you are staring at UV-light or higher energy photons, the individual photons can't hurt your eyes, because they cannot ionise.

 

A large number of them can heat up your retina and cause thermal damage. The fact that the lens of your eye focusses the energy on a small spot increases the problem. For this it doesn't matter if you consider them photons, waves or field excitations.

Unless you are staring at UV-light or higher energy photons, the individual photons can't hurt your eyes, because they cannot ionise.

 

A large number of them can heat up your retina and cause thermal damage. The fact that the lens of your eye focusses the energy on a small spot increases the problem. For this it doesn't matter if you consider them photons, waves or field excitations.

Thanks for the info I've learned some thing.

Edited June 1, 20178 yr by Roger Dynamic Motion