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770,483 Views • Nov 19, 2020 • Click to toggle off description
And to learn more about the hologram printer go to: www.litiholo.com/3d-hologram-printer.html?te
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Holograms are truly an amazing trick of physics that allow you to capture a 3d image and save it on a photographic plate. But unlike a traditional photo all the 3d information is retained allowing you to view objects from different angles. Today we're going to be looking at how holograms are made, the different recording media, and some properties of light that allow these amazing images to be captured.
Materials:
Blue laser - www.amazon.ca/gp/product/B07K5LSJCC
Green laser - www.amazon.ca/gp/product/B018C9A9AG/ref=ppx_yo_dt_…
Beam splitter cube - www.amazon.ca/gp/product/B07PMCM8HP/ref=ppx_yo_dt_…
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Views : 770,483
Genre: Science & Technology
Date of upload: Nov 19, 2020 ^^
Rating : 4.951 (397/31,700 LTDR)
RYD date created : 2022-04-09T15:09:28.605151Z
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YouTube Comments - 1,214 Comments
Top Comments of this video!! :3
1:40 "Let's start simple: What is light?"
Me: 👀
358 |
1:40
"What is light?"
Me, a physicist: starts sweating intensely
"This is the part where the physicists collectively panic" - I guess that's entirely right
1.1K |
I made some red light holograms about 20 years ago, with an x-ray film that wasn't sensitive to green light. So the dark room ended up being lit green. The best image I got was of some fools gold, and the hologram glittered like the real thing. Really helps show that it's some quantum trickery rather than just a 3d photo.
304 |
Fun fact (assuming this isn't mentioned in the video): magnifying lenses or other optics (microscopes, telescopes, maybe mirrors?) work inside holograms
427 |
Looking forward to your custom chocolate holograms! Thanks for mentioning me. Those RGB holograms are sweet!
1.6K |
“So what is your resolution”
People who use holograms: “yes”
238 |
haha - "a necron from 40K which I borrowed from a friend". It's not mine, honest
304 |
“DO NOT STARE INTO BEAM WITH REMAINING GOOD EYE”
186 |
Fun fact: photons are not special at all with their wave particle duality. The double slit experiment has been performed with clusters of about 60 Carbon atoms and the interference pattern was still created.
160 |
I wonder if we will ever get holographic cameras, that would be really cool
488 |
(I failed the physics class on interference, but at least I can understand this really well)
284 |
i’m not even a physicist and i started freaking out when he asked “what is light?”
145 |
I made all the holograms you mentioned back in the late 60's early 70's in a studio we had on Venice beach in LA. We used to airbrush the emulsions on plates. Yes it was that far back. Our "stable-tables" were large 4'x8' (inside measurement) cinder block plastic-lined tubs filled with sand on which lay inflated inner tubes & on top of those was a heavy solid steel plate to which we could attach articulated arms welded to magnets for mirrors, lenses, splitters, Q-switches, irises, shutters etc., or we could drill alignment holes for the same components. Most of our hefty lasers were on loan from SpectraPhysics, mostly HeNe's & Argons. We eventually started producing white light transmission "Moving Holograms" where we would use 35mm movie cameras, spherical lenses & subjects on rotating tables, and the lasers were then shone through the film via spherical "rod" lenses to produce series of vertically aligned 'compressed' frame-by-frame holograms for motion capture, a holographic GIF if you will. This video reminded me that we wore surgical masks to stop our breath from disturbing the air molecules. Messed up many a plate because someone spoke or god-forbid sneezed. By-the-by, Spontaneous Parametric Down-Conversion when coupled with lasers produce quantum-entangled interference patterns.
10 |
"Do not try to eat the laser."
Ohh... you're not supposed to do that my throat is on fire.
75 |
For the full colored holograms instead of using 3 LEDs you should be able to use a Xenon arc lamp bc it's both a point light source & has the entire visible color spectrum in it at a very stable level
12 |
I love how the thumbnail boasts "Rainbow Holograms" but he keeps correcting it in the video 🤣🤣
36 |
Thanks for being one of the people that warns about the terrible effects of eating lasers, we need more people like you.
12 |
The water analogy for the double slit experiment is actually amazing, I can't believe I've never heard it before.
12 |
Yay ever since geko tape, I’ve been waiting for this.
63 |
@creeperthekingcreeper8234
3 years ago
13:06 I thought he wa gonna say "Just to be extra safe, I also shut down the power grid in my city"
1.4K |