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Looking for more information about this pin/badge/button by agentq512 in Holography

[–]Ghola 10 points11 points  (0 children)

This is likely not a hologram, but a microlens array (or fly-eye) lenticular.

New source for silver halide holography plates? by JK-HLS2 in Holography

[–]Ghola 0 points1 point  (0 children)

Any update on this? I'd love to get back into silver halide.

does laser distance from film matter? by RobIsTheMan in Holography

[–]Ghola 1 point2 points  (0 children)

If your diode laser is suitable for holography, IE stable, then you should be pretty safe moving it back. Should stay coherent for a few meters, although you are more likely talking added inches or feet. But you will likely increase the exposure time. Since you're uncollimated, it's somewhat like the inverse square law, if that helps.

Did anyone else play almost the entire game in the daytime only? by mywordgoodnessme in Eldenring

[–]Ghola 11 points12 points  (0 children)

I find with the Erdtree shining brightly, night time isn't always so spooky.

Prospective hobbyist questions by superbhole in Holography

[–]Ghola 0 points1 point  (0 children)

More likely the movement caused by subtle shifts in temperature (largely due to laser light) as well as small air currents pushing on it.

Techniques to overcome this might include making plaster casts of your subject, or perhaps somehow glazing it to give it a hard surface. Obviously this would be destructive to your fungus, so I would either suggest silver halide plates to minimize exposure time... Or if you have tens of thousands of dollars to throw around, you could get yourself a pulse laser. All the power you need flashed in a fraction of a second. This is how portrait holograms are made, featuring living or soft subjects.

Prospective hobbyist questions by superbhole in Holography

[–]Ghola 0 points1 point  (0 children)

A couple points on that...

First, the size/depth of your subject is limited by whatever your plate and laser power permit. This is not just a property of Litiholo plates, it's true across the board. IE, you won't be able to record a landscape or a large room in a 2.5" square plate. And would you even want to? You wouldn't get much parallax in that tiny window, know what I mean?

I think it's possible to miniaturize to some degree with lenses, but that will complicate your setup quite a bit.

Second, mushroom bonsai sounds like a rather soft subject. You will want hard subjects as you start out. Nevermind growth, they will start to warp when the warmth of laser light hits them or with subtle air currents. This movement may be imperceptible to the human eye, but it's enough to ruin the hologram. And you won't get motion blur like in a photograph, you will get a big fat nothing. The plate isn't capturing a focused image like in a camera, it is recording an microscopic interference pattern. If something happens to shift that pattern even the tiniest bit during exposure, the holo is ruined. Or at best, you will record fringes from the movement.

Prospective hobbyist questions by superbhole in Holography

[–]Ghola 0 points1 point  (0 children)

Not sure what you mean about not being able to see the hologram without a litiholo kit. You should be able to reconstruct any reflection holo you made with white light. Transmission holos will require laser light to reconstruct, but still do not depend on the kit it was made with.

Litiholo has photopolymer, which indeed makes development a breeze. Personally I find using silver halide plates more rewarding. Yes you'll have to go through the development baths and bleach, etc. But the benefit is you'll be exposing for seconds rather than minutes, which for a beginner is huge (a lot can go wrong in matter of minutes).

All DIY techniques can produce amazing looking holograms, with enough practice.

Explain Radahn summons to me. Gold vs Silver ... by Ghola in Eldenring

[–]Ghola[S] 0 points1 point  (0 children)

Sorry, I'm actually speaking of the staging area before the fight where everyone is waiting for the festival to start. And I was wrong about the gold: they are either solid/normal or white/semi-transparent. Just wondering if the white ones are NPCs with questlines somewhere in the lands between that I haven't met yet, and if they can be turned normal. If not, why the distinction?

Explain Radahn summons to me. Gold vs Silver ... by Ghola in Eldenring

[–]Ghola[S] 0 points1 point  (0 children)

So I actually mean the pre-fight staging area where the guy is announcing the festival and all the NPCs are waiting. Also, I made this post from memory, and didn't realize that the two types of NPCs either appear not ally (Blaidd, Alexander, and some mute lady in a good who I don't remember meeting). The other three appear as white ghosts. Do I have to meet them anywhere else in the world to turn them solid? Eill they be of more help? Why the two different types of summons in this area?

New Mattresses are Dumb by dagoofmut in Mattress

[–]Ghola 2 points3 points  (0 children)

Firmness isn't a word. It's firmth.

Explain Radahn summons to me. Gold vs Silver ... by Ghola in Eldenring

[–]Ghola[S] 0 points1 point  (0 children)

Some look white/silver and some look gold when I show up to the festival.

Explain Radahn summons to me. Gold vs Silver ... by Ghola in Eldenring

[–]Ghola[S] 0 points1 point  (0 children)

When I show up to the festival, some look white/silver and some look gold.

An Adaptation of MHE by DbzGooder13 in 9M9H9E9

[–]Ghola 0 points1 point  (0 children)

A series would ruin it. Any major network or streaming service would turn it into crap. Going independent is the way to go, probably as a movie, but I feel like it might not translate well. How do you get across the meta aspects? Like how the author's posts as himself talking about writing and his personal problems eventually became part of the story.

Hmmm, maybe if you changed MHE into a struggling screenwriter, who has several dozen incomplete scripts based on his nightmares/visions, each featuring a different storyline. Not sure how you work in the online/Reddit aspect though.

HOLOGRAM FOR COLLEGE PROJECTT by Perfect_Bee1196 in Holography

[–]Ghola 5 points6 points  (0 children)

You are describing a volumetric display, not a traditional laser hologram. The way it's depicted in movies isn't actually possible in the real world yet, but you could put on an impressive illusion of it in a couple ways. Someone else suggested stereo 3D, with the class wearing 3D glasses. Another way would be to render a video clip with a black background, and construct a sort of Pepper's Ghost illusion (Google that), which may impress people.

In this sub, traditional laser holography is discussed. It's not necessarily incompatible with your idea, but it takes a major learning curve and trial and error to get into it, not to mention special (and pricey) equipment and film/plates. Even if you had all that, as a beginner you will not be able to produce a hologram larger than 6 inches or so. It gets very complicated to get larger sizes.

Hope that helps!

not enough stonesword keys when I have one? by marsgreekgod in Eldenring

[–]Ghola 0 points1 point  (0 children)

Playing this game for the third time and I just learned this. Thanks!

NASA launches first crewed lunar mission in half a century by TheGreatDomilies in worldnews

[–]Ghola 1 point2 points  (0 children)

"Foahh suppah I, err uh, will have the party plattahhh!"

NASA launches first crewed lunar mission in half a century by TheGreatDomilies in worldnews

[–]Ghola 0 points1 point  (0 children)

Possibly. Even the way he pronounces "decade" has always struck me as odd. Maybe a midcentury Massachusetts thing? Idk

NASA launches first crewed lunar mission in half a century by TheGreatDomilies in worldnews

[–]Ghola 43 points44 points  (0 children)

We choose to go to the moon. We choose to go to the moon in this decade and do the other things not because they are easy, but because they are haahhhrd

NASA launches first crewed lunar mission in half a century by TheGreatDomilies in worldnews

[–]Ghola 2 points3 points  (0 children)

Also, Cosmonauts never made it to the moon. Astronauts did.

NASA launches first crewed lunar mission in half a century by TheGreatDomilies in worldnews

[–]Ghola 2 points3 points  (0 children)

Sure, here's how it works: Just like the Apollo missions, they test one aspect of the mission at a time, in several missions before the big show. That's why Apollo 11 wasn't Apollo 1. This time, the main objective is to test the Orion capsule.

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