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Thought this poll was appropriate because of the relationship between it and the product of this forum.
According to current scientific knowledge, we treat light as a thing called photons, somewhere in between a particle and a wave.
But screw nevermind that.
Light behaves in an immensely peculiar way, on one hand it has no mass, diffracts, etc. but on the other it also has been shown to have momentum, exists in discrete packets of energy, so like, holy crap, I'm digging a huge hole here.
Feel free to write down any explanations of why you think what is what. Looking for people that don't just click both, and have a reason.
I am simply a university student with no accreditations or anything like that in this field. If there are people out there who do have such qualifications, please contribute, I am extremely interested in what our lovely flashlights spew out.
(Should also add a poll for how the hell gravity works.)
+1 for gnomes.
imo, we don’t have a clue how gravity works (ie on a galactic scale), thus the invention of dark matter
but what I find mind boggling, is that it can over power light
This pretty much sums it up in layman’s terms
This is also interesting and describes in more detail the particle/wave function
And finally here is the late great Richard Feynman with his amazing way of describing things in a way nobody else can.
It must be small flying gnomes… Someone before be voted that as well…
I would agree with Aristotle who said that light is nothing of substance
So, that means that cheap Chinese flashlights claim to have twice small flying gnomes than they really have? Weird
Hurhur. I can be a tiny bit rascist because I'm purely of Chinese descent.
But yeah, those little Chinese gnomes like to reproduce, but there's a one-child policy going on.
I think light is evil, people say that darkness is truly evil, but what if light is the darkness parading as truth J)
Wait. Let me switch on my flashlights and ask them.
Well, many years ago when I went to refrigeration school, they said there was no such thing as "Cold". That "Cold" was simply the absence of heat.
SO.... it's really easy... "Light" is the absence of "Dark". ... Gotta love an engineer don't ya!
IS TO IS TO IS TO!!!! Dan.
So…
If light is waves of particles, where do the particles go?
If light is “just” energy waves, how does it obey the First Law? Specifically, into what is it transformed?
Here’s a “gedanken-experimenten” you can try:
Take a LASER of some x power. Shine it into a perfect sphere with a 100% mirrored internal surface (assume it’s perfectly smooth). Maybe you point it straight across the Diameter, maybe you skew it some, you choose. What happens? Keep the light ON for awhile, say many years. What is inside the sphere after that?
Pour light into a container from which no light can escape. What happens?
Collimated Light might cause Standing Waves, so what if you used “white” (fully multispectral, not “NW”) light?
This little dalliance, dropped onto my head “off the cuff” by a childhood friend, has kept me busy scratching my empty head for years!
Dim
(PS: It’s a Psychological Illusion of Magic Gnomes, as everyone should know!)
It’s all an illusion.
When you kick the bucket, you’ll probably find that it’s a bucket full of light.
According to my current knowledge of light, which only extends as far as PHYS1101, (and that was quite a few years ago) solutions to the above are actually quite simple.
1) Assuming that the 100% mirrored internal surface is ideal, ie. there is no change between incident and reflected light, simply a change in the direction of the velocity vector, the sphere is a vacuum and gravity is negligible. If pointed straight across the diameter, the light would always bounce back and forth along exactly the same path, ie. a rectilinear path. If you could, at the snap of your fingers, make the sphere disappear, all the light that had hit the opposite reflecting side last would go straight back in to the laser crystal, and all the light that had hit the entry side last would keep going 'forward'.
Each pulse of light would be exactly the length of the diameter of the sphere. The intensity of each pulse of light, if the laser was continually kept on for a long amount of time, would be half to total energy of the light that had entered the sphere over that amount of time.
If you kept the laser on long enough, the pressure on the two opposing points of the sphere due to the momentum of the light would be incredible, and eventually enough to shatter the sphere.
If the laser was pointed off-axis, and not parallel to lines of latitude, there would be an eventual even dispersion of light throughout the sphere, where the amount of light bouncing off any area of the sphere would be equal to any other.
If once again, you made the sphere de-materialise all the light would scatter, perpendicular to the tangent plane on the point of the sphere which it last bounced off (just like the last time, except on more than two points). This would result it literally a ball of light, with wavelength of the laser emitter, being released. Kind of like a flash going off.
2) There's many containers which don't let light escape. Hence the term opaque. Pour light into one of those, what happens?
Eventually, if not quickly, light will be absorbed by the material of which the container is made according to it's absorption spectrum. For example, a blue container will absorb red and green light faster than it does blue, so it may only take one or two reflections to absorb all the red and green light, whereas it could take many more for the blue not to be reflected
I'm just saying RGB for simplicity sake. Easy enough to find the absorption and emission spectra of a material.
Unless you mean no light can escape like just keep getting reflected like before.
If you simply think 'conservation of energy' then I think you get the picture.
I read somewhere recently that every single photon is everywhere in the universe at the same time.
Still trying to get my head around that. It makes the particle/wave thing look like kindergarten stuff.
thanks, i incorporate many simpsons quotes in to my posts, though you are one of the few to notice