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Are they serious? It's NOT A HOLOGRAM!
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 (September 30, 2014 at 1:12 am)Exian Wrote: So, would an image created from a theater projector be considered a hologram? No. It does not capture the phase angle of the entire light field around the scene. It only maps the intensity and frequency of part of the light field that passes through the lens that recorded the image. 
Ok, looks like I have some reading to do. Thank you for answering my stupid questions.
I can't remember where this verse is from, I think it got removed from canon:
"I don't hang around with mostly men because I'm gay. It's because men are better than women. Better trained, better equipped...better. Just better! I'm not gay." For context, this is the previous verse: "Hi Jesus" -robvalue  RE: Are they serious? It's NOT A HOLOGRAM!
September 30, 2014 at 1:36 am
(This post was last modified: September 30, 2014 at 1:44 am by Aractus.)
(September 29, 2014 at 10:52 pm)Chuck Wrote: So a mirror reflected image of a projection of Michael Jackson is a hologram. Technically it is not a hologram of Michael Jackson, because the projected image itself probably does not have the same phases as the light field around Michael Jackson. But it is the hologram of the projected image of Michael Jackson. It captures the phases, intensity, and color of the projected image of Michael Jackson.No, a hologram is a 3D projected image. The image projected was 2D (or very possibly an array of 2D images). This is what an actual hologram looks like: http://youtu.be/HLtpi4nTv8Q Note that it can't be projected at the distances imagined in the MJ demonstration.
For Religion & Health see:[/b][/size] Williams & Sternthal. (2007). Spirituality, religion and health: Evidence and research directions. Med. J. Aust., 186(10), S47-S50. -LINK
The WIN/Gallup End of Year Survey 2013 found the US was perceived to be the greatest threat to world peace by a huge margin, with 24% of respondents fearful of the US followed by: 8% for Pakistan, and 6% for China. This was followed by 5% each for: Afghanistan, Iran, Israel, North Korea. -LINK "That's disgusting. There were clean athletes out there that have had their whole careers ruined by people like Lance Armstrong who just bended thoughts to fit their circumstances. He didn't look up cheating because he wanted to stop, he wanted to justify what he was doing and to keep that continuing on." - Nicole Cooke
No, the image in the mirror is just as 3D as any in a hologram. The image in the mirror appears 3d for precisely the same reason why a hologram appears 3D.
This thread has taught me two things:
1. I know bugger all about holograms. 2. I'm extremely depressed about my vast collection of X-Ray Specs. Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
(September 30, 2014 at 3:21 am)Chuck Wrote: No, the image in the mirror is just as 3D as any in a hologram. The image in the mirror appears 3d for precisely the same reason why a hologram appears 3D.The image in the Mirror is 2D NOT 3D. The picture is flat and has no depth, it is 2D.
For Religion & Health see:[/b][/size] Williams & Sternthal. (2007). Spirituality, religion and health: Evidence and research directions. Med. J. Aust., 186(10), S47-S50. -LINK
The WIN/Gallup End of Year Survey 2013 found the US was perceived to be the greatest threat to world peace by a huge margin, with 24% of respondents fearful of the US followed by: 8% for Pakistan, and 6% for China. This was followed by 5% each for: Afghanistan, Iran, Israel, North Korea. -LINK "That's disgusting. There were clean athletes out there that have had their whole careers ruined by people like Lance Armstrong who just bended thoughts to fit their circumstances. He didn't look up cheating because he wanted to stop, he wanted to justify what he was doing and to keep that continuing on." - Nicole Cooke
The image in the mirror has all the depth of any hologram. Move your head, and you see parallax. Measure the parallax, and you would see the distance implied by the parallax is not the distance from you to the mirror, but from you to the location of the object in the image. Move your head more, and you clearly begin to see a different aspect of the same object in the mirror image. If you can accurately measure the parallax to each point of the image, you would find the parallax implies the distance to each point in the image of object varies exactly as they would if the image is 3 D
The image in the mirror is not some two dimensional map of mere light intensity and color like a print. It captures all the phase angle of the light as well, that is why it can produce the above mentioned features. This is exactly how a hologram makes itself seem 3D. 
And here I thought this was going to be about the people who think the Moon is a hologram.
RE: Are they serious? It's NOT A HOLOGRAM!
September 30, 2014 at 10:47 am
(This post was last modified: September 30, 2014 at 11:10 am by Anomalocaris.)
And hold up a mirror so it reflects the moon, and what you see in the mirror is a hologram of how the moon appears in visible wave lengths.
Btw, the basic definition of hologram doesn't say anything about visible wave length. It is the capturing of phase,intensity, and frequency of any wave field. A really high fidelity stereo recording of sound can be regarded as the hologram of sound. In physics, a hologram can refer to capturing the phase, amplitude and frequency of the quantum probability wave field of particles. If you construct hologram of quantum probability waves of all particles that makes up the moon, which is currently well beyond our technology, but which does not contradict any know laws of physics, then you will literally have a hologram of the moon. Such a hologram of the moon will not only look like the moon from any angle, it will pull upon you with the same gravity as the moon. In fact in principle, this hologram is indistinguishable from the real moon, down to the fact that your fingers would respond just like you touched the real surface of the moon if you were to try to touch the surface of this holographic moon. The fact that at quantum level, reality has not demonstrable deeper existence than the amplitude, frequency and phase of the probability waves of all particles is the essence of the so called holographic principle.  You can fix ignorance, you can't fix stupid. Tinkety Tonk and down with the Nazis. |
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