Can photograph effect?

[MRC_Hans]

Mr. Hans,

Your posting need translation in my language.

Translation: You are either a troll or an idiot. Clear enough?

Furthur,

Do black colour absorb all wavelengths or just all visble WLs?

The ideal black body absorbs all wavelengths, but such an objecte does not exist, of course, so an actual black surface needs just absorb all visible wavelengths to be perceived as black.

Do white colour reflect all wavelengths or just all visble WLs?

See above.

Is their any differance in absorption of wavelengths through eyes depending on colour of eyes?

No.

Hans

 

[Donks]

Do black colour absorb all wavelengths or just all visble WLs?

A link you posted answers this question.

Do white colour reflect all wavelengths or just all visble WLs?

No.

Is their any differance in absorption of wavelengths through eyes depending on colour of eyes?

I posted something that answered this question not one week ago.

 

[Zep]

Do black colour absorb all wavelengths or just all visble WLs?

A lemon, and umbrella, and Abraham Lincoln.

Do white colour reflect all wavelengths or just all visble WLs?

This page intentionally left blank. Do not fold, spindle or mutilate.

Is their any differance in absorption of wavelengths through eyes depending on colour of eyes?

All your base are belong to us. Zig, make your time.

 

[Kumar]

Translation: You are either a troll or an idiot. Clear enough?


What about long, continious & with interest interaction with this translation?

How carbon is related to black colour on burning any substance? Can't you tell me something about colour of elements pre, on & post burning? Do we need to add colour of oxygen on burning?

In respect of above; Colour of any elements/substance can be as it appears without burning & as it appears on & after its burning.
In view of this, Will homeopathic remedies(say 6X or 6C) show colour resemblic to their physical appearance or somewhat differant effected by potentization?

Is it not indicative that we gets somewhat burning colour effect of crude chemicals which are processed in body without light by Oxidation or otherwise?

Is it also not indicative that we gets somewhat physical appearance colour effect of homeopathic remedies which are exposed to light?

 

[MRC_Hans]

How carbon is related to black colour on burning any substance? Can't you tell me something about colour of elements pre, on & post burning? Do we need to add colour of oxygen on burning?

What did it look like last time you burned carbon? If we do a spectroscopic analysis of something burning, we'll see an oxygen line, yes. Elements are not changed by burning, they always have the same spectrum.

In respect of above; Colour of any elements/substance can be as it appears without burning & as it appears on & after its burning.

Irrelevant

In view of this, Will homeopathic remedies(say 6X or 6C) show colour resemblic to their physical appearance or somewhat differant effected by potentization?

Potentization does not change anything. It is just shaking.

Is it not indicative that we gets somewhat burning colour effect of crude chemicals which are processed in body without light by Oxidation or otherwise?

No it is not indicative. It is not the oxidation that makes the light, it is the heat.

Is it also not indicative that we gets somewhat physical appearance colour effect of homeopathic remedies which are exposed to light?

No. Kumar, homeopathic remedies are WATER.

Hans

 

[Kumar]

Mr Hans,

What did it look like last time you burned carbon? If we do a spectroscopic analysis of something burning, we'll see an oxygen line, yes. Elements are not changed by burning, they always have the same spectrum.

Is physical appearance of any substance is reflection & absorption/emission on burning? I mean why colours are differant in its crude physical appearance & on burning?

 

[PixyMisa]

If you are asking why does something look different when it is burning to when it is not burning, the answer is because it is burning.

It is undergoing an exothermic chemical reaction and you are seeing the results of that reaction.

An answer is flung
Into the dark swirling clouds.
No reply is heard.

 

[Kumar]

If you are asking why does something look different when it is burning to when it is not burning, the answer is because it is burning.

It is undergoing an exothermic chemical reaction and you are seeing the results of that reaction.

An answer is flung
Into the dark swirling clouds.
No reply is heard.

But we get similar colours on every burning of same substance. What is the actual colour of any element & how can we understand it?

 

[PixyMisa]

But we get similar colours on every burning of same substance.

Basically, yes.

What is the actual colour of any element & how can we understand it?

The actual colour of the element is the colour it had when you weren't burning it.

When you are burning something, you are observing a chemical reaction, and the colours you see are the colours of the reaction. When it has finished burning, you no longer have an element, but instead a chemical compound. The colour you see then is characteristic of the chemical compound.

But: If you heat up an element enough, it will emit light at specific frequencies, the characteristic spectral lines of that element.

If you heat up a chemical compound enough, it will emit light at specific frequencies: The spectral lines of the elements that make up the compound. Those spectral lines remain constant, whatever compound an element might find itself in.

This is one way that chemists can determine the makeup of an unknown chemical compound. It is known as spectroscopy.

 

[Kumar]

The actual colour of the element is the colour it had when you weren't burning it.

But: If you heat up an element enough, it will emit light at specific frequencies, the characteristic spectral lines of that element.

But will colours of these two will not be differant--if yes how?


When you are burning something, you are observing a chemical reaction, and the colours you see are the colours of the reaction. When it has finished burning, you no longer have an element, but instead a chemical compound. The colour you see then is characteristic of the chemical compound.

Thanks, I got it. Btw, whether colour of end product of everything on burning are just 'few'?


If you heat up a chemical compound enough, it will emit light at specific frequencies: The spectral lines of the elements that make up the compound. Those spectral lines remain constant, whatever compound an element might find itself in.

Can it mean that spectral lines of both domond & graphite will be same?

 

[PixyMisa]

But will colours of these two will not be differant--if yes how?

The spectral lines aren't a colour, but a set of frequencies of light specific for a given element. Even gases that are transparent to visible light have spectral lines.

This page is quite neat; it has a little selector that lets you view the spectral lines for a number of different elements.

Thanks, I got it. Btw, whether colour of end product of everything on burning are just 'few'?

Eh?

Can it mean that spectral lines of both domond & graphite will be same?

Yes. That's exactly right.

 

[Kumar]

PixyMisa

Thanks. You made me to read & think so much. Now it looks heat can cause every electron to jump & emit photons. Whether our body heat is sufficient to effect some emissions? If yes, pls explain in brief.

Furthur there are so many spectral lines in case of few atoms as carbon, silicon etc. What does it tells us? Are these lines dependent on number of electrons?

 

[PixyMisa]

Thanks. You made me to read & think so much. Now it looks heat can cause every electron to jump & emit photons.

Yes, that's right.

Heat supplies the energy for the electron to jump to a higher orbit. When it falls back to its normal orbit, it releases a photon containing that energy. The energy of the photon depends on the difference between the energy levels of the two orbits. Since the orbits of the electrons for a particular element are always the same, each element has a fixed set of spectral lines.

Whether our body heat is sufficient to effect some emissions? If yes, pls explain in brief.

Our body heat isn't enough to cause this sort of emission.

Anything warm will radiate in the infrared, but this is by an entirely different mechanism known as blackbody radiation. This doesn't give sharp lines, but a continuous spectrum. The exact spectrum in this case depends on the temperature (and only on the temperature).

Furthur there are so many spectral lines in case of few atoms as carbon, silicon etc. What does it tells us? Are these lines dependent on number of electrons?

Yes, that's right.

 

[Kumar]

Furthur there are so many spectral lines in case of few atoms as carbon, silicon etc. What does it tells us? Are these lines dependent on number of electrons?
--------------------------------------------------------------------------------


Yes, that's right.

PixyMisa,

Carbon's atomic number is 6 & of Oxygen 8, means more electrons in Oxygen atom. But your link shows much more specteral lines in case of Carbon than Oxygen inspite C has less electrons. How?

Yes, that's right.

Heat supplies the energy for the electron to jump to a higher orbit. When it falls back to its normal orbit, it releases a photon containing that energy. The energy of the photon depends on the difference between the energy levels of the two orbits. Since the orbits of the electrons for a particular element are always the same, each element has a fixed set of spectral lines.

Our body heat isn't enough to cause this sort of emission.

Anything warm will radiate in the infrared, but this is by an entirely different mechanism known as blackbody radiation. This doesn't give sharp lines, but a continuous spectrum. The exact spectrum in this case depends on the temperature (and only on the temperature).


How electrons in our body's atomic/molecular structures behaves on exposing those to body's heat? Whether continuous spectrum is made up of all colours? Whether sun-light is a continious spectrum?

 

[PixyMisa]

Carbon's atomic number is 6 & of Oxygen 8, means more electrons in Oxygen atom. But your link shows much more specteral lines in case of Carbon than Oxygen inspite C has less electrons. How?

Because that's how it works.

The spectral lines are the possible electron transitions of a given element whose energies lie in the range of visible light. What transitions are possible depends on the arrangement of the electron orbits, which in turn depends on the number of electrons (which is fixed for any given element - the number of electrons equals the atomic number).

So the spectral lines do depend on the number of electrons, but it's a bit more complicated than that.

How electrons in our body's atomic/molecular structures behaves on exposing those to body's heat?

The electrons don't do anything. Human body heat isn't nearly enough to do anything to the electrons in our atoms.

Whether continuous spectrum is made up of all colours?

It depends on what you mean by "all colours".

The black-body spectrum of a relatively cool object has plenty of infrared, but fades out before it gets to visible light.

I'm sure you're familiar with the concept of something being red hot? That means that it's now hot enough that it is radiating significantly in the red part of the visible spectrum. Keep heating it up and it will glow yellow, and then white.

Whether sun-light is a continious spectrum?

Yes and no.

The sun is hot enough to glow yellow. However, its interior is much hotter, and emits bright spectral lines at certain frequencies. And (if I recall correctly, it's been a while since I studied this) the outer layers of the sun are cool enough to produce dark absorbtion lines.

So if you view the Sun's spectrum, you get a continuous spectrum across the visible range, but with bright and dark bands in it.

 

[Kumar]

Because that's how it works.

The spectral lines are the possible electron transitions of a given element whose energies lie in the range of visible light. What transitions are possible depends on the arrangement of the electron orbits, which in turn depends on the number of electrons (which is fixed for any given element - the number of electrons equals the atomic number).

So the spectral lines do depend on the number of electrons, but it's a bit more complicated than that.

Sorry, I think it is not clear as spectral lines of Carbon & Oxygen do not matches with the number of electrons in their atoms.

The electrons don't do anything. Human body heat isn't nearly enough to do anything to the electrons in our atoms.

Can this heat keep body's atoms/moleclues-partly heated/excited all the time?

It depends on what you mean by "all colours".


I'm sure you're familiar with the concept of something being red hot? That means that it's now hot enough that it is radiating significantly in the red part of the visible spectrum. Keep heating it up and it will glow yellow, and then white.

How it become yellow>>white on increasing heat? White may mean all visible spectrum--how then it happens?

Yes and no.

The sun is hot enough to glow yellow. However, its interior is much hotter, and emits bright spectral lines at certain frequencies. And (if I recall correctly, it's been a while since I studied this) the outer layers of the sun are cool enough to produce dark absorbtion lines.So if you view the Sun's spectrum, you get a continuous spectrum across the visible range, but with bright and dark bands in it.

Whether spectrum of sunrays is mostly yellow--or how yellow colour is particularily related to Sunlight? I want to compare it with similar yellow light emitted by burning of candle/oil lamp.

Best wishes.

 

[PixyMisa]

Sorry, I think it is not clear as spectral lines of Carbon & Oxygen do not matches with the number of electrons in their atoms.

Okay.

Each electron can have more than one possible transition.

If an electron normally sits in orbit A, it might also have higher possible orbits B and C. If we heat up our test material, we might find that some electrons jump from A to B, and then fall back again, releasing photons with the characteristic energy of B - A.

If we heat it more, we might get some electrons all the way to orbit C. Now they can either drop back from there to B, releasing a photon of energy C - B, and then to A as before, or they could drop straight back to A, releasing a higher energy photon C - A.

So one electron can give us any of three different energies (and hence wavelengths).

Can this heat keep body's atoms/moleclues-partly heated/excited all the time?

It can, of course, keep the body's atoms and molecules heated.

It can't keep them "partly excited", because this is physically impossible.

Read what I was just saying about electron orbits. An electron can be in orbit A, or B, or C. Orbit A is its "ground state"; orbits B and C represent excited states.

An electron can never be found between orbits A and B, or between B and C. It cannot ever happen.

This is one of the key predictions of Quantum Mechanics. It has been tested extremely thoroughly, and has been shown to be correct beyond any doubt.

How it become yellow>>white on increasing heat? White may mean all visible spectrum--how then it happens?

Because at any time it is radiating in a whole range of frequencies. Remember, this is blackbody radiation, which is completely different to the emission of photons by excited electrons.

When an object is relatively cool, its radiation is entirely in the infrared (but in a broad range of infrared frequencies). When you heat it to red hot, it is still radiating in the infrared, but now it is also radiating at the red end of the visible spectrum.

But the time it is white hot, it is radiating right across the visible spectrum, so it appears white.

Whether spectrum of sunrays is mostly yellow--or how yellow colour is particularily related to Sunlight? I want to compare it with similar yellow light emitted by burning of candle/oil lamp.

The spectrum of sunlight is not mostly yellow. You can see this for yourself with a prism - the spectrum is fairly evenly spread from red through to violet. The yellow and red parts are a bit brighter than the blue and violet, but it's still a continuous spectrum.

Remember how white light contains all the colours? Well, yellow light can contain all the colours too; it's just that it has a bit less light on the blue/violet end and a bit more on the yellow/red end.

You can also have purely yellow light - what is referred to as monochromatic light. Lasers put out monochromatic light. Individual spectral lines are monochromatic. But the Sun is not, and neither are common light sources like light bulbs or candles.

 

[Kumar]

Okay.

Each electron can have more than one possible transition.

If an electron normally sits in orbit A, it might also have higher possible orbits B and C. If we heat up our test material, we might find that some electrons jump from A to B, and then fall back again, releasing photons with the characteristic energy of B - A.

If we heat it more, we might get some electrons all the way to orbit C. Now they can either drop back from there to B, releasing a photon of energy C - B, and then to A as before, or they could drop straight back to A, releasing a higher energy photon C - A.

So one electron can give us any of three different energies (and hence wavelengths).

Will it then not be heat dependant? How then relevant/chracteristic spectrum to any element can be thought if heat can effect it?

It can, of course, keep the body's atoms and molecules heated.

It can't keep them "partly excited", because this is physically impossible.
Read what I was just saying about electron orbits. An electron can be in orbit A, or B, or C. Orbit A is its "ground state"; orbits B and C represent excited states.

An electron can never be found between orbits A and B, or between B and C. It cannot ever happen.

This is one of the key predictions of Quantum Mechanics. It has been tested extremely thoroughly, and has been shown to be correct beyond any doubt.

What can be possible changes on atoms & molecules on getting body heat? Is it some change in molecular/atomic vibrations?


Because at any time it is radiating in a whole range of frequencies. Remember, this is blackbody radiation, which is completely different to the emission of photons by excited electrons.

When an object is relatively cool, its radiation is entirely in the infrared (but in a broad range of infrared frequencies). When you heat it to red hot, it is still radiating in the infrared, but now it is also radiating at the red end of the visible spectrum.

But the time it is white hot, it is radiating right across the visible spectrum, so it appears white.

Should we then take that as we go higher on broad band, wavelengths shorter than that are just added?

The spectrum of sunlight is not mostly yellow. You can see this for yourself with a prism - the spectrum is fairly evenly spread from red through to violet. The yellow and red parts are a bit brighter than the blue and violet, but it's still a continuous spectrum.

Remember how white light contains all the colours? Well, yellow light can contain all the colours too; it's just that it has a bit less light on the blue/violet end and a bit more on the yellow/red end.

You can also have purely yellow light - what is referred to as monochromatic light. Lasers put out monochromatic light. Individual spectral lines are monochromatic. But the Sun is not, and neither are common light sources like light bulbs or candles. [/B]

Can/will light emitted from a candle/oil lamp consist all wavelengths as sunlight?

How we see black colour when nothing is emitted from it? What is the differance between black, transparent, invisible & blank space?

 

[PixyMisa]

Will it then not be heat dependant?

The hotter the material, the more likely it is for an electron to jump to an excited state.

However, the possible orbits are fixed. No matter how hot the material is, the possible orbits do not change.

The orbits A, B and C are always the same. The energies of the photons that can be emitted are always the same.

What can be possible changes on atoms & molecules on getting body heat? Is it some change in molecular/atomic vibrations?

It is vibrations, yes. That's what heat is.

Should we then take that as we go higher on broad band, wavelengths shorter than that are just added?

Basically, yes. There is a formula for calculating exactly how much light of each wavelength you will get at a given temperature.

Can/will light emitted from a candle/oil lamp consist all wavelengths as sunlight?

Yes, though the brightness at various wavelengths will be different.

(And remember, we're just talking visible wavelengths here. You don't get X-Rays from a candle flame.)

How we see black colour when nothing is emitted from it?

One of two ways:

First, the object is not completely black (nothing is), so you see what little light is reflected.

Second, by contrast. Put a lump of coal on a sheet of white paper, and it's pretty damn hard to miss.

 

[MRC_Hans]

Heheh, Pixy. Just wait till Kumar comes full circle and concludes something like "in view of the above, I feel body heat and part exitations can effect..."




Hans