|
trendal
J♠



Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
|
Re: What is light? [Re: DieCommie]
#7583207 - 11/01/07 08:38 AM (16 years, 2 months ago) |
|
|
Sorry! That post should have been directed to Silversoul!
--------------------
Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
|
DieCommie


Registered: 12/11/03
Posts: 29,258
|
Re: What is light? [Re: trendal]
#7583361 - 11/01/07 09:43 AM (16 years, 2 months ago) |
|
|
Oh no sweat, I kind of figured that after I posted.
I have another reply to Silversoul, I dont think science proves anything beyond a doubt! Doubt is a key ingredient in science (of course in many things doubt is relegated to an enormously small percentage, yet still exists).
|
Seuss
Error: divide byzero



Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 2 months, 20 days
|
|
Quote:
Silversoul said:
Quote:
Seuss said: (Math isn't my strong suite.)
*suit
Apparently spelling isn't either.
Heh, I would go so far as to claim that my abilities at spelling are a learning disability. I do a fairly good job of working with it, but no, spelling and I do not get along, at all. I use a very limited vocabulary when writing, compared to speaking, as I don't know how to spell most words correctly.
-------------------- Just another spore in the wind.
|
Ego Death
Justadropofwaterinanendlesssea



Registered: 04/27/03
Posts: 10,447
Loc: The War Machine
|
Re: What is light? [Re: Seuss]
#7584689 - 11/01/07 04:38 PM (16 years, 2 months ago) |
|
|
So is light just energy like heat?
Is heat a wave?
Now I'm really
|
trendal
J♠



Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
|
Re: What is light? [Re: Ego Death]
#7584712 - 11/01/07 04:45 PM (16 years, 2 months ago) |
|
|
Light is one form of energy, yes. The thing most commonly referred to thing as "heat" - that feeling you get when you put your hand up beside a hot oven window - is a type of light, infrared light.
Of course there is another type of "hot" to talk about, and that is the "thermal vibrations" that molecules undergo (at all but absolute zero).
--------------------
Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
|
Silversoul
Rhizome


Registered: 01/01/05
Posts: 23,576
Loc: The Barricades
|
Re: What is light? [Re: DieCommie]
#7584826 - 11/01/07 05:19 PM (16 years, 2 months ago) |
|
|
Quote:
DieCommie said: I have another reply to Silversoul, I dont think science proves anything beyond a doubt! Doubt is a key ingredient in science (of course in many things doubt is relegated to an enormously small percentage, yet still exists).
Ya, I realize that. I was just saying it for dramatic effect.
--------------------
|
Silversoul
Rhizome


Registered: 01/01/05
Posts: 23,576
Loc: The Barricades
|
Re: What is light? [Re: trendal]
#7584840 - 11/01/07 05:21 PM (16 years, 2 months ago) |
|
|
Quote:
trendal said: I think that experiment proves that a photon of light is neither a particle or a wave...not that it is "both".
Light behaves like a wave or particle...but experiments such as the double slit prove light is, in fact, something more.
I was wondering: Isn't the same true of electrons? I think I remember hearing that somewhere. What about protons and neutrons? Are they just particles, or are they something more as well? Is there anything that is "just" a particle?
--------------------
|
trendal
J♠



Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
|
|
No, there is nothing in the atomic world that is shaped as a "particle" (as they are most often understood to be). A particle is a hundred year old explanation for the atomic world.
--------------------
Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
|
DieCommie


Registered: 12/11/03
Posts: 29,258
|
Re: What is light? [Re: trendal]
#7585275 - 11/01/07 07:20 PM (16 years, 2 months ago) |
|
|
Well, I think dont think the particle description of matter is completely antiquated idea. It has particle/wave duality, just like light does.
Silversoul-> Yes the same is true of electrons, protons, anything we consider 'matter'. When light which was believed to be a wave was found to have particle wave duality a French nobleman/scientist, deBroglie, postulated that perhaps matter, which is believed to be a particle also has particle/wave duality. He ran some numebrs and found the wavelength of particles. Now electrons can be run through the double slit experiment just like light, and they show the same properties. That is if you send one electron through the slits it will interfere with itself and create a interference pattern. That means the electron must have went through both slits, thus it must be a wave. But when the electron strikes a surface it only creates one little mark, so it must be a particle. (Note that if you observe the particle to see which slit it goes through, you get no interference pattern) Thats probably a little over your head, do some searching on particle/wave duality, double slit experiment, and deBroglie wavelength if interested.
|
Diploid
Cuban



Registered: 01/09/03
Posts: 19,274
Loc: Rabbit Hole
|
Re: What is light? [Re: DieCommie]
#7585596 - 11/01/07 08:59 PM (16 years, 2 months ago) |
|
|
Now electrons can be run through the double slit experiment just like light
Entire atoms and even molecules can be shot through the double slit and they also have dual personalities. The bigger the thing, the more it behaves like a classical particle and the less it behaves like a wave.
That's why I behave almost entirely like a particle: cuz I'm BIG!
-------------------- Republican Values: 1) You can't get married to your spouse who is the same sex as you. 2) You can't have an abortion no matter how much you don't want a child. 3) You can't have a certain plant in your possession or you'll get locked up with a rapist and a murderer. 4) We need a smaller, less-intrusive government.
|
DieCommie


Registered: 12/11/03
Posts: 29,258
|
Re: What is light? [Re: Diploid]
#7585606 - 11/01/07 09:02 PM (16 years, 2 months ago) |
|
|
According to one of my texts, they have gotten an interference pattern off of a bucky ball (C-60)!
|
Gumby
Fishnologist



Registered: 06/13/01
Posts: 26,656
|
Re: What is light? [Re: DieCommie]
#7587308 - 11/02/07 11:02 AM (16 years, 2 months ago) |
|
|
Quote:
DieCommie said: The coolest aspect of light... It travels the same speed no matter how fast you are going, or the source of it is going. No matter how fast you go you always measure a light beam traveling at the same speed.
So what happens if I'm driving my car in space at the speed of light and I turn on the head lights?
|
DieCommie


Registered: 12/11/03
Posts: 29,258
|
Re: What is light? [Re: Gumby]
#7587400 - 11/02/07 11:25 AM (16 years, 2 months ago) |
|
|
.
Edited by DieCommie (11/11/16 10:15 AM)
|
DieCommie


Registered: 12/11/03
Posts: 29,258
|
Re: What is light? [Re: DieCommie]
#7590156 - 11/03/07 03:25 AM (16 years, 2 months ago) |
|
|
Haha, I just remembered I wrote this shit out earlier. Its probably a little incoherent and out of place... Basically its just shit goes fast ---> time goes slow
|
Acyl
cyanidepoisoning


Registered: 12/13/05
Posts: 4,472
Loc: N.W.T.
|
Re: What is light? [Re: DieCommie]
#7591414 - 11/03/07 03:04 PM (16 years, 2 months ago) |
|
|
Quote:
DieCommie said: According to one of my texts, they have gotten an interference pattern off of a bucky ball (C-60)!
Cool!
--------------------
1 ,2
|
Minstrel
Man of Science



Registered: 03/15/05
Posts: 1,974
Loc: Hogtown
|
Re: What is light? [Re: Diploid]
#7605820 - 11/07/07 07:34 AM (16 years, 2 months ago) |
|
|
We can never know 100% of any properties of these quanta. We can only theorize, and model the system on the evidence we have.
The most useful model for 'light' as electromagnetic radiation, is that it is a photon, with a finite ammount of energy, which is proportional to its wavelength. It has a magnetic wave component, and an electrical wave component, which are 90 degrees out of phase.
|
|