EMR questions

[Relative]

EMR, electromagnetic radiation is emitted from the Sun?

 

EMR is made up of a visual spectrum been several different wavelengths and also has invisible wavelengths, such has radio waves?

 

 

EMR as an whole, a collective, with no interference of its natural state, is transparent?

 

 

A light bulb , a naked flame, a flashlight all emit a form of EMR?

 

 

Light is apart of EMR and is said as single particles are known has a Photon?

 

Photons and emr is mass less and do not have a Physical body?

 

EMR has potential energy?

 

 

 

Whenever you can see, EMR must be present?

 

 

EMR is always isotropic from the source?

 

EMR is apparently present in the entire visual universe?

Emr's strongest form is black body radiation?

Emr decreases in strength over distance?

The speed of emr is constant in a vacuum?

EMR slows down going through a medium?

by diffraction, we can see the visual spectrum?

matter absorbs emr?

matter also reflects emr?

EMR changes the thermodynamics of an house brick? makes it warmer

Edited October 9, 2014 by Relative

[Strange]

Yes to most of your questions. But...

 

EMR as an whole, a collective, with no interference of its natural state, is transparent?

I don't think the word transparent makes much sense in this context. Transparent means a material that lets light through (glass, water, air) but EMR is not a material.

 

Light is apart of EMR and is said as single particles are known has a Photon?

All EMR can be described in terms of photons, not just light.

 

EMR has potential energy?

EMR has energy, but not potential energy. Potential energy is a property of objects.

 

EMR is always isotropic from the source?

No. A laser, for example, sends light in a single direction.

[Relative]

Yes to most of your questions. But...

 

 

I don't think the word transparent makes much sense in this context. Transparent means a material that lets light through (glass, water, air) but EMR is not a material.

 

 

All EMR can be described in terms of photons, not just light.

 

 

EMR has energy, but not potential energy. Potential energy is a property of objects.

 

 

No. A laser, for example, sends light in a single direction.

Thank you , I now know why no one understood me.

 

Can we stick with the 'transparent''

 

EMR has not got a Physical body, it is mass less, we can see through it . like looking through a solid piece/block of glass yes?

 

 

unless in spectrum form

Edited October 9, 2014 by Relative

[Strange]

 

we can see through it .

 

I suppose so. It doesn't interact with itself so we can't see that it is there.

[Relative]

imagine been in the center of a block of

 

 

I suppose so. It doesn't interact with itself so we can't see that it is there.

ok, exactly you cant see it, it is as if invisible, so please if you can imagine yourself at the central point inside a huge block of glass.

 

 

Would you say that is an accurate comparison to something that we can not see, transparent

[Strange]

Would you say that is an accurate comparison to something that we can not see, transparent

 

No. Glass is a solid material. Light isn't material and isn't stationary.

[Relative]

 

No. Glass is a solid material. Light isn't material and isn't stationary.

I know glass is solid, I am just using glass for comparison to ask question.

 

Emr is invisible yes, like this diagram tries to show, imagine inside a box, full of emr, we can see the sides, but between us and the sides it is transparent , by definition of transparent, comparable . there is not an actual word for it

 

We can see through it, if it were dark blue we could not see through it

[Strange]

Yes, you can only see things that the light is reflected or emitted from. You can't see the empty space in between.

[Relative]

So EMR is transparent?

 

Yes, you can only see things that the light is reflected or emitted from. You can't see the empty space in between.

Ok great, you understand this, in the diagram , if I was to send a wavelength from the black part to the YOU, at the exact same frequency as the invisible, transparent ,constant, you would not be able to distinguish the signal from the static?

I got go out price a job up be back soon

[Strange]

 

if I was to send a wavelength from the black part to the YOU, at the exact same frequency as the invisible, transparent ,constant, you would not be able to distinguish the signal from the static?

 

This doesn't make much sense.

 

What is the black part?

What is the "the invisible, transparent ,constant"?

 

Any light that enters our eyes will be seen. Whatever its source. So I don't understand what you are asking.

 

Are you saying that if you hold up a piece of white paper in front of a white wall, it will be hard to see it?

[Relative]

 

This doesn't make much sense.

 

What is the black part?

What is the "the invisible, transparent ,constant"?

 

Any light that enters our eyes will be seen. Whatever its source. So I don't understand what you are asking.

 

Are you saying that if you hold up a piece of white paper in front of a white wall, it will be hard to see it?

Are you saying that if you hold up a piece of white paper in front of a white wall, it will be hard to see it?

 

Yes you got it

but if i change the frequency of the white paper you see a difference in the constant state?

I hope you understand, I will add a diagram and a question

 

 

You see a change in the energy constant?

constant-unchanging, unvariable

I think I can use wiki to quote my understandings.

 

and edit slightly to make a sentence.

 

Stationary energy source produces waves at a constant frequency f, and the wave-fronts propagate symmetrically away from the source at a constant speed c.

 

The distance between wave-fronts is the wavelength. All observers will see the same frequency, which will be equal to the actual frequency of the source where f = f₀ .

f = c + 0/c - 0.7c f₀ = 3.33 f₀ and an observer behind the source will see a lower frequency

The wave fronts in front of the source are now all bunched up at the same point.

 

Is this more understandable from me?

Edited October 9, 2014 by Relative

[Strange]

 

but if i change the frequency of the white paper you see a difference in the constant state?

 

Yes, because that changes the colour. So it will contrast with the background.

 

 

You see a change in the energy constant?

 

I have no idea what you are asking.

 

 

I think I can use wiki to quote my understandings.

 

It might be helpful if you said which Wikipedia page you were quoting from. Without context, I have no idea what those sentences mean.

[Fuzzwood]

but if i change the frequency of the white paper you see a difference in the constant state?

Keep in mind that white is not a color, but rather the entire visible EM spectrum. Likewise, black is not a color either, but the absense of any frequency in the visible spectrum.

[Relative]

 

Yes, because that changes the colour. So it will contrast with the background.

 

 

I have no idea what you are asking.

 

 

It might be helpful if you said which Wikipedia page you were quoting from. Without context, I have no idea what those sentences mean.

Compare my sentences I edited from wiki , it is the Doppler page ,http://en.wikipedia.org/wiki/Doppler_effect

 

 

 

The emr from the sun is at a constant F, which to an observer is 0, constant in its transparent state, a constant frequency?

 

We add any difference to that frequency, and we see a change in the frequency through the constant.

 

 

I.e a red brick, a blue brick, a change in the constant E/frequency state.

 

Light propogates when travelling into the light, hence blue shift.

 

You see a change in the energy constant?

Keep in mind that white is not a color, but rather the entire visible EM spectrum. Likewise, black is not a color either, but the absense of any frequency in the visible spectrum

Nothing is a colour, colour is a frequency

[swansont]

 

The emr from the sun is at a constant F, which to an observer is 0, constant in its transparent state, a constant frequency?

 

 

The EMR from the sun is in a spectrum (a whole bunch of frequencies) that follows a particular pattern known as the blackbody spectrum. The relative intensity vs wavelength (or frequency) depends on the temperature.

[Strange]

 

Light propogates when travelling into the light, hence blue shift.

 

I don't know what that means. You get red or blue shift when you move towards or away from a source of light. In most situations, this would be far too small to be seen.

 

 

Nothing is a colour, colour is a frequency

 

The point is that white is not a frequency; it is a mixture all frequencies. If you Doppler shift white light, I am guessing it will still be white (assuming the spectrum extends beyond the visible range).

[Relative]

Thank you strange for your patience, I do not think anyone will ever understand me, I am trying so hard to convey what I mean.

 

 

And trying to explain , so I can convey what Im asking.

 

 

White light you call it, but it is not white, it is ''transparent'', it has a much greater contrast to white, white been just a mixture of colors, frequencies.

 

 

The spectrum wheel spinning, shows you white, but you still see the white through the constant E, the constant E been transparent,

 

 

White is a mixture of frequencies, that becomes a constant frequency,

 

 

at a set continued rpm , several different frequencies become a constant frequency , this constant,white, is seen through the natural constant of frequency, that is transparent. The transparent state is also a set frequency. All observers see transparent has the constant ,

 

Any change in the natural constant equals change, change is seen?

[swansont]

One needs to take care to distinguish between the properties of light and how our eyes interact with light and how our brain interprets that interaction.

 

There isn't a connection between the so-called transparency of light and having a white spectrum (or not). Saying "it is not white, it is transparent'' is a non sequitur. Like saying "it's not green, it's tall"

 

(and remember: this is a thread for asking questions about EMR, and only that)

 

White is a mixture of frequencies, that becomes a constant frequency,

 

 

Makes no sense to me. A mixture of frequencies yes, but "becomes a constant frequency" ? Nope. And again reference my comment above about questions.

[Strange]

 

White light you call it, but it is not white, it is ''transparent''

 

You are mixing up (at least) three different things.

 

1. The light we see when it enters our eyes; this is white when it is an equal mixture of all colours/frequencies.

 

2. The light we can't see because it is "passing by" - not going in to our eyes. However, if someone else sees or measures this, we can still know it is white light.

 

3. The fact that light doesn't interact with light.

 

This is the trouble with using the word "transparent". You are being confused by your misuse of the word.

 

 

White is a mixture of frequencies, that becomes a constant frequency,

 

No. If it were a single, constant frequency then it would be a single pure colour.

[Relative]

One needs to take care to distinguish between the properties of light and how our eyes interact with light and how our brain interprets that interaction.

 

There isn't a connection between the so-called transparency of light and having a white spectrum (or not). Saying "it is not white, it is transparent'' is a non sequitur. Like saying "it's not green, it's tall"

 

(and remember: this is a thread for asking questions about EMR, and only that)

This thread is all emr , emr is why we see, but yes i will stick to questions,

 

 

You say so called transparency of light, so science can see it?

[Fuzzwood]

Light is not transparent. Transparency is a property of something with mass. Since photons are massless, they cannot by definition be transparent.

[Relative]

 

You are mixing up (at least) three different things.

 

1. The light we see when it enters our eyes; this is white when it is an equal mixture of all colours/frequencies.

 

2. The light we can't see because it is "passing by" - not going in to our eyes. However, if someone else sees or measures this, we can still know it is white light.

 

3. The fact that light doesn't interact with light.

 

This is the trouble with using the word "transparent". You are being confused by your misuse of the word.

 

 

No. If it were a single, constant frequency then it would be a single pure colour.

Are photons invisible to the human eye?

 

Is every space between your eyes and keyboard filled with photons?

 

 

Can you see through the Photons?

 

Can you see your keyboard through the photons?

Is your keyboard different to the transparent ? is light reflected from your keyboard?

 

do photons propogate on your keyboard?

if photons are a mixture of frequencies, why is my keyboard a colour?

My keyboard is a color because of photon propagation?

Light is not transparent. Transparency is a property of something with mass. Since photons are massless, they cannot by definition be transparent.

what else do you call it? there is nothing else, glass is transparent i get that....it is alike been inside a block of glass

but not in solid form

Edited October 9, 2014 by Relative

[Strange]

 

You say so called transparency of light, so science can see it?

 

"So called" because it is an incorrect and misleading term.

 

I am struggling to see what your mental model of light is. You seem to be thinking that there is a constant "sea" of light out there and we only see things when that is disturbed - like ripples on (transparent) water. Is that something like it? (If so, it is completely wrong.)

[Relative]

 

"So called" because it is an incorrect and misleading term.

 

I am struggling to see what your mental model of light is. You seem to be thinking that there is a constant "sea" of emr out there and we only see things when light is reflected,

not ripples on water , i edited your post,

 

 

we only see things, because emr is reflected and absorbed, a different to the constant.

 

Ok lets look at this from a cubic container , containing water.

 

 

The water is transparent, allows light to pass through. I remove the water , the cubic volume of space is still full of light, I can still see through it yes?

 

yes or no to my containers, are all these actions transparent?

if I pour a color dye into the water container, you see a difference yes?

If I add a cloud to the atmosphere you see a difference?

If I add dirt to the glass you see a difference?

If I fire an energy through the emr you see a difference ?

the visual spectrum is an energy difference?

Edited October 9, 2014 by Relative

[Strange]

not ripples on water , i edited your post

 

OK. Better. But the "sea of EMR" and your repeated use of the word "constant" is misleading. There is light going to and from objects all the time. It is not "static".

 

 

we only see things, because emr is reflected and absorbed, a different to the constant.

 

Yes, we see through reflection. But there is no "constant" to be different from. There is continuously changing light arriving at your eyes.