WEBVTT - Hollywood Ruined Holograms 0:00:00.160 --> 0:00:07.400 Brought to you by Toyota. Let's go places. Welcome to 0:00:07.560 --> 0:00:16.120 Forward Thinking. Welcome everyone to Forward Thinking, the podcast where 0:00:16.120 --> 0:00:18.279 we look at the future, open up our arms and 0:00:18.320 --> 0:00:22.440 say come here you. I'm Jonathan Strickland, I'm Lauren Vocalvon, 0:00:22.680 --> 0:00:24.919 I'm Joe McCormick. And today we wanted to talk a 0:00:24.960 --> 0:00:28.160 little bit about holograms, uh and uh and kind of 0:00:28.200 --> 0:00:32.279 the misconceptions about holograms and how Hollywood has given us 0:00:32.560 --> 0:00:36.640 unrealistic expectations that we cannot help but feel um are 0:00:37.200 --> 0:00:39.200 should just be right around the corner room. We're always 0:00:39.240 --> 0:00:42.639 disappointed when it doesn't happen. Yeah, where's my Layah hologram? Honestly? 0:00:43.120 --> 0:00:45.720 But yeah, you're talking about Princess Leah. Are there any 0:00:45.760 --> 0:00:49.479 other layers that are critical too? Sure? There are some 0:00:49.560 --> 0:00:54.080 people with some very nerdy parents who, yes, are named Leia. Correct, 0:00:54.080 --> 0:00:55.920 you're correct. I'm sorry. I didn't mean to invalidate all 0:00:55.920 --> 0:00:57.920 of you layers out there. No, No, I don't want 0:00:57.920 --> 0:01:00.360 to invalidate any layers anywhere, but I do want to 0:01:00.360 --> 0:01:02.920 talk about holograms and uh. You know, do you guys 0:01:03.000 --> 0:01:08.880 remember the story about Tupac headlining over at Coachella. Yeah, 0:01:09.040 --> 0:01:11.040 they said it was a hologram. Didn't they know he 0:01:11.120 --> 0:01:17.400 was on stage with Snoop Lion. He's now SNOOPO used 0:01:17.440 --> 0:01:19.280 to be Snoop Dogg. No, I understand, I know who 0:01:19.319 --> 0:01:21.160 it is. Okay, all right, you're looking at me like 0:01:21.200 --> 0:01:22.960 just like I just wasn't sure that he. I just 0:01:23.040 --> 0:01:25.680 knew he was performing on stage with somebody. Yeah, No, 0:01:25.840 --> 0:01:29.600 he was on stage, or really an image of him 0:01:29.600 --> 0:01:32.480 was on stage. Of course, Tupac himself was sadly no 0:01:32.560 --> 0:01:35.120 longer with us, and that, of course, was the big deal, 0:01:35.200 --> 0:01:36.960 was the fact that there was a person who was 0:01:37.000 --> 0:01:41.000 once alive and now no longer alive performing at Coachella, 0:01:41.040 --> 0:01:43.320 And it looked like kind of a hologram sort of thing, 0:01:43.319 --> 0:01:45.559 and that's what everyone called it. Well, wait a minute, 0:01:45.840 --> 0:01:49.040 so I heard it was a hologram. It's not. Why not, 0:01:49.320 --> 0:01:53.120 because it really was just a sort of a well, 0:01:53.240 --> 0:01:57.160 kind of a sub set of an old trick called 0:01:57.200 --> 0:02:01.520 Pepper's Ghost, which is a trick that's used by magicians. 0:02:01.600 --> 0:02:05.760 It's used in haunted houses, it's used in dark rides. Uh, 0:02:05.800 --> 0:02:07.880 And it's a way to create an illusion so that 0:02:07.920 --> 0:02:12.119 you have sort of a transparent figure that seemingly can 0:02:12.160 --> 0:02:16.120 interact with a real physical setting and uh and the 0:02:16.120 --> 0:02:19.000 way it works is pretty pretty nifty. Um and and 0:02:19.040 --> 0:02:23.120 the the best manifestation of this that I have seen 0:02:24.040 --> 0:02:28.720 is that the Disney ride the Haunted Mansion. So for 0:02:28.880 --> 0:02:31.280 you Disney fans out there who are listening to this 0:02:31.320 --> 0:02:35.520 podcast who absolutely do not want to have the magic ruined, 0:02:36.080 --> 0:02:38.639 I will suggest that you skip ahead on this podcast 0:02:38.680 --> 0:02:41.720 because I'm going to tell you how a certain effect works. 0:02:42.040 --> 0:02:45.000 And once you know it, you can never unknow it. 0:02:45.800 --> 0:02:48.920 So um, I know that some people take that very seriously. 0:02:49.400 --> 0:02:51.639 So and by the way, the Easter Bunny is real 0:02:53.400 --> 0:02:56.799 fair enough, So you go through the Haunted Mansion ride. 0:02:56.840 --> 0:02:59.440 One of the big sequences in this ride is a 0:02:59.480 --> 0:03:02.920 ball where there's a giant birthday party going on. There's 0:03:02.919 --> 0:03:05.520 some ghosts dancing, there's a ghost playing a pipe organ. 0:03:05.840 --> 0:03:10.080 You see some ghosts uh portraits dueling with pistols, um, 0:03:10.160 --> 0:03:13.120 other ghosts appear to be circling chandelier. A lot of 0:03:13.160 --> 0:03:16.800 stuff is happening in this one sequenceeous it looks great. 0:03:16.880 --> 0:03:19.840 And all the ghosts are these transparent figures that are 0:03:19.880 --> 0:03:23.519 moving around what looks like an actual three dimensional scene, 0:03:23.600 --> 0:03:25.920 and so it's kind of it can be a little confusing, 0:03:25.919 --> 0:03:29.400 like how did they do that? It's actually very simple. 0:03:29.639 --> 0:03:34.840 So the setting is real. There's a real table there there, 0:03:35.480 --> 0:03:39.520 there's a real uh, chandelier, chandelier, pipe organ, all these 0:03:39.600 --> 0:03:42.560 kind of things are actually there. But all the figures 0:03:42.560 --> 0:03:45.080 you see are actually just reflections. There's a pane of 0:03:45.120 --> 0:03:50.880 glass between the ride vehicles and the setting where the 0:03:50.920 --> 0:03:55.000 table is and all that, uh, and then below you 0:03:55.200 --> 0:03:58.080 and above you on you know, right along the same 0:03:58.080 --> 0:04:01.360 parallel as the as the track you are on, there 0:04:01.400 --> 0:04:06.200 are animatronic figures that are lit so that they will 0:04:06.240 --> 0:04:09.440 reflect off the glass. The ride part that you are 0:04:09.480 --> 0:04:12.040 in is very dark, so you don't see your own 0:04:12.120 --> 0:04:15.480 reflection or else that would ruin the illusion. There's also 0:04:15.520 --> 0:04:17.359 a scrim there that kind of cuts down on the 0:04:17.400 --> 0:04:21.039 glare so that you can't tell that there's a reflection 0:04:21.120 --> 0:04:24.960 going on. By controlling the lighting in that section above 0:04:25.040 --> 0:04:27.640 and below you, you can make the ghosts appear to 0:04:27.800 --> 0:04:30.720 fade in and fade out of existence. The brighter it is, 0:04:30.760 --> 0:04:33.719 the stronger the reflection is. The dimmer it is, the 0:04:33.800 --> 0:04:36.599 more weak the reflection, so they start to look like 0:04:36.640 --> 0:04:39.400 they are becoming more and more insubstantial as the lights 0:04:39.440 --> 0:04:41.080 go down right right, the same way that if you've 0:04:41.120 --> 0:04:44.120 ever seen on TV if they're interrogating suspect and on 0:04:44.120 --> 0:04:47.040 one side of a one way mirror, and if the 0:04:47.120 --> 0:04:48.800 lights come up on the other side, then you can 0:04:48.839 --> 0:04:51.039 see who's through the other end. Right, that's considered a 0:04:51.080 --> 0:04:55.120 bad thing, usually usually played to great comedic effect and 0:04:55.160 --> 0:04:59.760 things like but but yeah, that's how that that illusion 0:04:59.760 --> 0:05:03.240 we're because it's just a reflection. So you've got the 0:05:03.800 --> 0:05:05.880 dark part of the ride, so you can't see your 0:05:05.920 --> 0:05:07.920 own reflection. You've got the parts that are lit up 0:05:07.960 --> 0:05:10.080 above you and below you, those are blocked out from 0:05:10.080 --> 0:05:12.600 your view by the floor and ceiling of the actual 0:05:12.720 --> 0:05:15.520 ride track that you are on. And then you're looking 0:05:15.560 --> 0:05:18.799 into a room and seeing the reflection, and that gives 0:05:18.800 --> 0:05:21.520 you the illusion that there are ghosts wandering around. Now. 0:05:21.560 --> 0:05:24.880 In the case of Tupac over at Coachella, it was 0:05:24.960 --> 0:05:30.479 a variant of this particular trick, uh and it's very similar, 0:05:30.520 --> 0:05:34.240 but it does require a slightly different setup. It's called 0:05:34.279 --> 0:05:38.880 the Musion eyeliner, which is actually a proprietary tech. It's 0:05:38.920 --> 0:05:41.240 done by this one company. Is that is that the 0:05:41.279 --> 0:05:45.320 projection or the film or both. It's it's really the 0:05:45.320 --> 0:05:49.240 projection method. So at the stage at Coachella, you have 0:05:49.320 --> 0:05:51.360 you have the stage itself where the people are all 0:05:51.720 --> 0:05:54.200 dance and round, singing and stuff. In front of the 0:05:54.240 --> 0:05:58.520 stage is a screen that's that's on the ground, so 0:05:58.560 --> 0:06:01.600 it's not it's not mounted vertically. It's mounted so that 0:06:01.680 --> 0:06:05.480 it's actually on the ground itself, flat against the ground. 0:06:06.080 --> 0:06:09.080 You've got a frame that's in front of the stage 0:06:09.120 --> 0:06:12.960 that that supports a screen that's tilted at a forty 0:06:13.000 --> 0:06:15.880 five degree angle toward the audience. So the base of 0:06:15.920 --> 0:06:20.200 the screen or foil as as Musian Eyeliner calls it, 0:06:20.440 --> 0:06:22.320 the base of the foil is on the edge of 0:06:22.320 --> 0:06:25.359 the stage. The top of the foil is mounted to 0:06:25.680 --> 0:06:29.600 a sort of a lattice that's in front of the stage, 0:06:30.080 --> 0:06:32.840 and it's transparent so you can see through it. So 0:06:32.880 --> 0:06:35.240 if you're standing in front of the stage, there's just 0:06:35.279 --> 0:06:37.760 the screen that you probably aren't really noticing, particularly if 0:06:37.760 --> 0:06:40.880 it's if it's dark, uh, And so you can see 0:06:40.920 --> 0:06:43.480 everything that's happening on the stage just fine. Well, you've 0:06:43.480 --> 0:06:46.000 got a projector also mounted at the top of the 0:06:46.000 --> 0:06:48.920 the you know, the structure that's holding the screen up 0:06:49.360 --> 0:06:53.280 it's projecting down onto the ground, so that screen that's 0:06:53.320 --> 0:06:57.560 flat on the ground, it projects onto that. The foil 0:06:57.839 --> 0:07:01.680 reflects that projection, so that from the perspective of the 0:07:01.720 --> 0:07:07.240 audience there appears to be a three dimensional moving figure 0:07:07.400 --> 0:07:10.920 up there on stage that's ghostly in nature, because of 0:07:10.960 --> 0:07:13.720 course you can see through the screen, so it's sort 0:07:13.720 --> 0:07:17.080 of this transparent kind of figure that's moving around, and 0:07:17.440 --> 0:07:20.040 it can seem to move through the same physical space 0:07:20.240 --> 0:07:22.400 as the people who are actually on the stage. It's 0:07:22.400 --> 0:07:24.760 all on illusion, but yeah, it's just a matter of 0:07:24.960 --> 0:07:28.800 perspective right now. I'd imagine if you're a performer who's 0:07:28.840 --> 0:07:31.760 up there on the stage with the image of Tupac, 0:07:31.840 --> 0:07:35.560 you you're not seeing anything interacting with him. Maybe you're 0:07:35.560 --> 0:07:38.400 seeing you're seeing a little bit of light on the screen. Yeah, 0:07:38.440 --> 0:07:40.320 you might see, you might see the foil in front 0:07:40.320 --> 0:07:42.880 of you. You probably could see where it was being projected, 0:07:42.920 --> 0:07:45.360 but you wouldn't, Yeah, you wouldn't look to your right 0:07:45.440 --> 0:07:49.120 and suddenly see a ghostly performer standing there. And that's 0:07:49.160 --> 0:07:50.680 one thing I think we need to keep in mind 0:07:50.760 --> 0:07:53.640 as we're going through the rest of this podcast is 0:07:53.680 --> 0:07:57.640 the idea that um when we're talking about three D imaging. 0:07:58.400 --> 0:08:00.480 It turns out most of the time what we're actually 0:08:00.520 --> 0:08:03.840 talking about is something that is going one way. Is 0:08:04.200 --> 0:08:07.640 it's a forced perspective. Is if you are sitting and 0:08:07.680 --> 0:08:12.000 looking from one direction, it appears three D and right. 0:08:12.080 --> 0:08:14.120 You wouldn't always know that. But we we can get 0:08:14.120 --> 0:08:16.880 to the Hollywood misconceptions in a bit. Well. For instance, 0:08:16.880 --> 0:08:18.880 if you were staying to the side of that stage, 0:08:18.920 --> 0:08:21.040 if you were looking at the stage from like your 0:08:21.320 --> 0:08:24.120 ninety degrees off, so you're looking from the left or 0:08:24.200 --> 0:08:26.520 right side, you could see that there are people on 0:08:26.560 --> 0:08:28.559 the stage dancing. You would see that there's a screen 0:08:28.640 --> 0:08:31.240 that's that's tilted out toward the audience, and that's all 0:08:31.280 --> 0:08:33.240 you would see. You would not see a ghostly figure 0:08:33.280 --> 0:08:35.600 at all. You might see that there's a projector that's 0:08:35.600 --> 0:08:37.520 beaming something down, but you wouldn't be able to tell 0:08:37.520 --> 0:08:39.920 what it was. There'd be no three dimensionality to it 0:08:40.400 --> 0:08:42.920 um and you wouldn't even know necessarily that there was 0:08:42.960 --> 0:08:46.920 the ghostly figure of two pack cor dancing around on stage. 0:08:47.120 --> 0:08:49.880 It only appears to have volume from one direction. It 0:08:50.000 --> 0:08:54.120 doesn't actually have depths exactly. Yeah, you couldn't walk around 0:08:54.160 --> 0:08:56.960 it you know it, it would only be it would 0:08:56.960 --> 0:08:59.120 only work as long as you were in the right position, 0:08:59.160 --> 0:09:01.680 which is why this works great for things like haunted 0:09:01.720 --> 0:09:06.400 houses and rides where the perspective, Yeah, you're pretty much 0:09:06.440 --> 0:09:09.439 stuck with one point of view. You can't change that 0:09:09.840 --> 0:09:12.240 easily in most of these And the same thing with 0:09:12.320 --> 0:09:14.719 magic tricks. You know you you have designed this so 0:09:14.880 --> 0:09:17.360 that people can look at it in one particular way, 0:09:17.960 --> 0:09:19.800 and so it doesn't matter if it doesn't work any 0:09:19.840 --> 0:09:21.360 other way because no one's ever going to be in 0:09:21.440 --> 0:09:25.520 that position to see it. So we should probably explain 0:09:25.920 --> 0:09:30.120 if Tupac wasn't a real hologram. What is a hologram? 0:09:30.440 --> 0:09:32.880 When people use that word, what what are we actually 0:09:32.960 --> 0:09:37.160 talking about? So hologram is essentially a three dimensional representation 0:09:37.400 --> 0:09:40.440 of some sort of object. And the way it works 0:09:40.520 --> 0:09:43.400 is using one of my favorite things in the world, lasers, 0:09:44.120 --> 0:09:46.240 or really just one laser. Use a laser and a 0:09:46.360 --> 0:09:49.839 beam splitter to split that laser beam into two, and 0:09:50.160 --> 0:09:52.800 use mirrors to direct exactly where those beams go. And 0:09:53.000 --> 0:09:57.160 you have two, these two beams that perform very important functions. 0:09:57.200 --> 0:09:59.640 One of them is the object beam. Now this is 0:09:59.720 --> 0:10:01.800 the B beam that you direct, and you actually also 0:10:01.920 --> 0:10:04.120 use a lens to to diffuse the light in fact, 0:10:04.440 --> 0:10:07.760 to scan over an object, whatever the object is that 0:10:07.800 --> 0:10:10.839 you want to make a hologram of, and so that 0:10:11.080 --> 0:10:13.720 light then hits the object, some of it gets reflected 0:10:13.800 --> 0:10:17.160 back to this holographic medium, whether it's film or some 0:10:17.280 --> 0:10:21.920 sort of digital representation ship. Right, and in the in 0:10:22.000 --> 0:10:24.400 the good old days of holograms, we're talking holographic film, 0:10:25.080 --> 0:10:27.880 which is very very sensitive. It's got very high resolution 0:10:27.960 --> 0:10:32.000 for different different grades and phases of light. Your other 0:10:32.240 --> 0:10:35.599 beam is a reference beam which reflects and then is 0:10:35.679 --> 0:10:39.880 projected directly onto the holographic film, never having encountered the object. 0:10:40.400 --> 0:10:42.880 So you've got these two different beams for reference, right, 0:10:42.920 --> 0:10:44.520 You've got the well, you've got the one for reference 0:10:44.559 --> 0:10:46.600 in the one of the object one, and then uh 0:10:47.400 --> 0:10:50.680 that ends up being the basis of the holographic image 0:10:50.679 --> 0:10:53.319 that gets captured on the film. So what you're actually 0:10:53.400 --> 0:10:58.520 recording is the interference between these two beams. How a 0:10:58.720 --> 0:11:04.080 clean fusion of the beam interacts with uh, the waves 0:11:04.120 --> 0:11:07.079 of light that passed over the object. Right. And so 0:11:07.720 --> 0:11:10.920 then what you do is, once you've developed this holographic 0:11:11.000 --> 0:11:15.120 film or processed it through digital means whatever you have 0:11:15.880 --> 0:11:18.480 a physical representation you've got, like the picture, the holographic 0:11:18.520 --> 0:11:21.640 picture in front of you, in whatever medium you've used, 0:11:22.120 --> 0:11:25.240 usually it's clear plastic film. Uh. Then you have to 0:11:25.400 --> 0:11:28.719 use the same sort of light you used as your 0:11:29.559 --> 0:11:32.400 your your object being a reference beams so that you 0:11:32.559 --> 0:11:37.720 can recreate that that um that instance and get the effect. 0:11:37.800 --> 0:11:40.800 Otherwise you're just you're just looking at noise signal. Yeah, 0:11:40.800 --> 0:11:42.959 you're not looking at anything in particular, you know, it's 0:11:43.000 --> 0:11:45.920 just it's just clear plastic film. So you illuminate with 0:11:46.000 --> 0:11:47.719 the proper type of light, and the effect is that 0:11:47.800 --> 0:11:50.640 you get a three dimensional object that looks like it's 0:11:50.800 --> 0:11:53.800 right behind that plastic film, like like the plastic film 0:11:53.840 --> 0:11:57.120 is almost like a window, right and uh, and that 0:11:57.320 --> 0:11:59.440 you can it's something that you feel like you can 0:11:59.480 --> 0:12:02.240 even walk around it. And depending upon how you process 0:12:02.360 --> 0:12:05.160 the um the image and how you're displaying it, you 0:12:05.280 --> 0:12:08.280 might be able to walk around and see slightly different 0:12:08.480 --> 0:12:11.000 versions of that thing. Most of the time, you're getting 0:12:11.040 --> 0:12:13.920 something that's always forward facing because every single aspect of 0:12:14.040 --> 0:12:17.760 that holographic film, uh is captured in every piece of 0:12:17.840 --> 0:12:20.079 that holographic film. In other words, every section of that 0:12:20.160 --> 0:12:23.280 holographic film has the information of the entire picture inside 0:12:23.320 --> 0:12:24.760 of it. Right. You can even you can even rip 0:12:24.840 --> 0:12:26.959 a hologram in half and in each half see the 0:12:27.040 --> 0:12:29.360 exact state image, right, although every time you rip it 0:12:29.400 --> 0:12:31.400 you're going to degrade the right, You're you're going to 0:12:31.800 --> 0:12:35.480 have the resolution right. So, but but you can also 0:12:35.559 --> 0:12:39.800 do things like take several different images, represent them as holograms, 0:12:40.160 --> 0:12:43.240 and then through the process of just moving through a space, 0:12:43.400 --> 0:12:46.080 create the illusion of movements. So in other words, there's 0:12:46.080 --> 0:12:48.559 a famous hologram where it's a woman who appears to 0:12:48.600 --> 0:12:52.120 be blowing a kiss as you walk around this and uh, 0:12:52.240 --> 0:12:54.400 and it's done the same way you would do a 0:12:54.480 --> 0:12:57.560 hand drawn animation. It's just a series of these photos 0:12:57.679 --> 0:13:00.280 done as holograms, and as you move through the space, 0:13:00.400 --> 0:13:03.559 it seems to move. But that's all I can do. Like, 0:13:04.160 --> 0:13:06.960 you can either make it make the the image appear 0:13:07.040 --> 0:13:09.320 to blow a kiss or catch a kiss and shove 0:13:09.400 --> 0:13:11.920 it into the lips, I mean, take a kiss back. 0:13:12.000 --> 0:13:14.280 Those are your two choices. Yeah, I always walked in 0:13:14.320 --> 0:13:19.080 the wrong way, so lonely, um, but yeah, that's uh, 0:13:19.679 --> 0:13:21.360 that's your basic hologram. I mean, that's the thing is 0:13:21.400 --> 0:13:23.320 that that's what a hologram is. That you're using these 0:13:23.440 --> 0:13:28.840 lasers to really um to explore through light the dimensions 0:13:28.960 --> 0:13:33.440 of of an object and then capture that in some medium. 0:13:33.880 --> 0:13:38.160 That's all hologram really is, Whereas what we're kind of 0:13:38.840 --> 0:13:42.320 used to thinking of as holograms isn't necessarily that. I mean, 0:13:42.360 --> 0:13:45.400 it's it's it's almost more of a problem of vocabulary 0:13:45.480 --> 0:13:47.840 than anything else, right, I mean, people use the word 0:13:47.920 --> 0:13:50.439 hologram when really I think what they're talking about is 0:13:50.640 --> 0:13:53.600 is pretty much any kind of three D image rey 0:13:53.720 --> 0:13:57.719 or three D projection. Yeah, yeah, exactly, So there are 0:13:57.880 --> 0:14:01.000 other means of three D projection to have nothing to 0:14:01.040 --> 0:14:03.880 do with holograms. You know, you don't have to use 0:14:04.000 --> 0:14:06.199 the laser beams or splitters or anything like that in 0:14:06.360 --> 0:14:08.679 order to generate the effect. The Pepper's Ghost one is 0:14:08.720 --> 0:14:11.200 a great example. There's no lasers involved in that. I mean, 0:14:11.480 --> 0:14:13.520 I guess you could throw lasers in there if you 0:14:13.559 --> 0:14:16.280 wanted to, but there's no reason for them. But with 0:14:16.400 --> 0:14:19.760 the Pepper's Ghost, I mean, in that instance, there's actually 0:14:19.840 --> 0:14:22.480 nothing even three D about the image, right, It just 0:14:22.960 --> 0:14:27.240 appears to uh right, right, You're you're looking at a reflection. 0:14:27.320 --> 0:14:29.440 But then there's nothing three D about a reflection either. 0:14:29.520 --> 0:14:31.280 I mean, that's the way Pepper's Ghost works, It's the 0:14:31.280 --> 0:14:33.320 way where a lot of holograms work. When you look 0:14:33.360 --> 0:14:35.480 into a reflection and you see a reflection of yourself, 0:14:35.880 --> 0:14:38.360 there's that illusion of depth, there's an illusion that light 0:14:38.520 --> 0:14:41.320 is coming at you, even though it's just really bouncing 0:14:41.400 --> 0:14:44.560 off to cracting off of various surfaces that make it 0:14:44.640 --> 0:14:47.520 seem as though. Right. What I'm talking about is um 0:14:48.480 --> 0:14:50.480 is for the viewers. So if you look at a 0:14:50.520 --> 0:14:53.720 Pepper's Ghost projection and you move around to the left 0:14:53.840 --> 0:14:56.640 or right of your position, it's still it's just gonna 0:14:56.840 --> 0:14:59.400 it's just a reflection, just a reflection. You're just going 0:14:59.440 --> 0:15:02.840 to be move around. It's not going to appear as 0:15:02.880 --> 0:15:05.280 a three D object would, Which is why, which is 0:15:05.360 --> 0:15:08.160 why they force your point of view in most of 0:15:08.240 --> 0:15:11.400 these uh instances of Pepper's ghosts. They don't want you 0:15:11.520 --> 0:15:13.000 to If you were to move to the side, you 0:15:13.000 --> 0:15:15.760 would just see that there's a pane of glass between 0:15:16.320 --> 0:15:20.120 people and a thing. Right, But there are ways to 0:15:20.520 --> 0:15:24.120 to create that three D illusion, right, to actually make 0:15:24.280 --> 0:15:26.440 so you know, I'm looking dead on and if I 0:15:26.560 --> 0:15:29.040 move my head over to the left. I see a 0:15:29.120 --> 0:15:32.640 little bit more to the left of the supposed image. Um, 0:15:32.760 --> 0:15:35.440 and it simulates the effect of three D volume even 0:15:35.480 --> 0:15:38.600 though we're still just looking at a projection coming from 0:15:38.640 --> 0:15:43.120 a screen. There's there's volumetric display, and volumetric display. Is 0:15:43.280 --> 0:15:47.760 this idea that you use a three dimensional display as 0:15:47.800 --> 0:15:51.000 opposed to the Planer displays P L A, N A 0:15:51.360 --> 0:15:53.960 R displays that we're used to. That's, you know, something 0:15:53.960 --> 0:15:55.960 you would have on your computer or your television or 0:15:56.040 --> 0:15:59.080 movie screen or whatever. This would be a display that 0:15:59.280 --> 0:16:03.040 itself had three dimensions, and so you would project things 0:16:03.320 --> 0:16:06.480 on it. It would essentially still be two dimensional projections 0:16:06.600 --> 0:16:08.720 on a three dimensional object, but that would give it 0:16:08.880 --> 0:16:11.640 the three dimensionality. That's kind of cheating. It is. It 0:16:11.800 --> 0:16:14.960 is cheating, and it's it's exactly cheating. And uh. And 0:16:15.240 --> 0:16:18.280 we've talked about the possibility of using things like missed 0:16:18.400 --> 0:16:21.160 or fog to project things on, but again, you're not 0:16:21.720 --> 0:16:25.080 we can't tell the projection. Hey, I want you to 0:16:25.160 --> 0:16:28.160 hit this one particle that's floating, this bit of particulate 0:16:28.280 --> 0:16:30.960 matter that's floating in the air, but don't hit the 0:16:31.040 --> 0:16:32.840 ones that are in front of it. Because I need 0:16:32.880 --> 0:16:36.200 you to to simulate depth. You can't really do that. 0:16:36.640 --> 0:16:40.360 We can't. We can't yet. Yeah, well yeah, I mean 0:16:40.440 --> 0:16:43.200 the idea of projecting into a fog or suspended mist 0:16:43.320 --> 0:16:47.040 is interesting, but we're not there yet in in terms 0:16:47.080 --> 0:16:50.720 of really creating something that that has a convincing volume 0:16:50.800 --> 0:16:53.840 to it. You can can specificity of our of our 0:16:53.960 --> 0:16:58.880 projection is not anywhere and and and controlling something like 0:16:59.120 --> 0:17:02.760 a fog or missed in a way where it doesn't 0:17:02.880 --> 0:17:05.159 reveal to the viewer that that's why it is as 0:17:05.200 --> 0:17:07.639 tricky as well. I will say that, Uh, there was 0:17:08.080 --> 0:17:11.600 another Disney ride that I loved very much. Uh was 0:17:11.680 --> 0:17:15.320 that Disneyland Flying Elephants. That was what I loved when 0:17:15.320 --> 0:17:17.600 I was a kid. I don't like. I don't like 0:17:17.680 --> 0:17:20.680 waiting three hours to write on it now. Um No, 0:17:20.960 --> 0:17:24.040 spinning teacups, awesome ride, fantastic. Don't ride that more than 0:17:24.119 --> 0:17:27.720 three times in a row, people, I speak from experience. No, 0:17:27.880 --> 0:17:32.040 I'm talking about the Indiana Jones ride, which is at Disneyland, 0:17:32.240 --> 0:17:35.880 not at disney World. Um. And at Disneyland, that one 0:17:36.080 --> 0:17:38.520 part of the ride, it involves going through this dark 0:17:38.560 --> 0:17:40.560 tunnel and at the end of the dark tunnel is 0:17:40.600 --> 0:17:42.800 a wall and on that wall or all these rats 0:17:42.880 --> 0:17:46.119 crawling across it, and the vehicle you're on is going 0:17:46.240 --> 0:17:48.679 very quickly towards that wall, and you're thinking, oh God, Tom, 0:17:49.280 --> 0:17:51.480 turn it the last second, that'll be exciting, But instead 0:17:51.520 --> 0:17:53.159 you go through it, and when you go through it, 0:17:53.200 --> 0:17:55.720 you realize that the whole thing was a projection that 0:17:55.880 --> 0:17:58.920 was done on Missed. Now, since then they've done similar 0:17:59.000 --> 0:18:00.600 things with the Pirates of the cab En ride where 0:18:00.600 --> 0:18:04.240 they'll project like Davy Jones's face on Missed before you 0:18:04.320 --> 0:18:06.240 go through it. But that was the first time I'd 0:18:06.240 --> 0:18:08.720 ever experienced that effect, and the particular day I went 0:18:08.880 --> 0:18:13.640 it was working really well. So I was genuinely surprised 0:18:13.680 --> 0:18:16.119 when it happened. And though we should say that effect 0:18:16.280 --> 0:18:18.920 is too deep projection, it was too deep projection. It 0:18:19.040 --> 0:18:21.760 was in the dark, and it was fast because I 0:18:21.840 --> 0:18:23.720 was on a fast moving ride, so you're not going, 0:18:23.880 --> 0:18:25.920 you know, you don't have a long enough moment to 0:18:26.000 --> 0:18:30.520 sit there and really evaluate exactly. All you see is rats. Wow, 0:18:30.680 --> 0:18:32.840 that was cool. That's That's about how fast it went. 0:18:33.400 --> 0:18:36.600 So so this brings us to something that we wanted 0:18:36.680 --> 0:18:39.920 to talk about, which is the misconceptions that we get 0:18:40.080 --> 0:18:43.200 when we're our ideas are fed by Hollywood, right, the 0:18:43.240 --> 0:18:46.520 whole Star Wars Princess Leiah hologram. Right. And I was 0:18:46.560 --> 0:18:50.080 actually trying to figure out why when I started doing 0:18:50.200 --> 0:18:54.040 research for this holograms. You know, the three D projections 0:18:54.080 --> 0:18:56.240 and holograms that I was finding, even the state of 0:18:56.240 --> 0:18:59.160 the art ones were nothing like the idea I had. 0:18:59.320 --> 0:19:02.320 Is just a kind of a shallow consumer of science fiction. 0:19:02.960 --> 0:19:09.200 And I think that's because the movies, um do not 0:19:09.480 --> 0:19:12.320 effectively communicate the idea that, as far as we know, 0:19:12.840 --> 0:19:16.440 three D imaging is really shackle too screens to some 0:19:16.720 --> 0:19:20.520 form of actual physical medium that you can't just project 0:19:20.680 --> 0:19:25.280 light into a space and have it be coherent in 0:19:25.359 --> 0:19:27.879 any way until we have a transparent nanobot army that 0:19:28.000 --> 0:19:30.400 we can use to reflect images off of. But it's true, 0:19:30.400 --> 0:19:32.040 I mean here, which we don't even need to reflect 0:19:32.080 --> 0:19:33.920 at that point. The nano bots themselves just take on 0:19:34.080 --> 0:19:36.760 whatever color they need, and then because they're nanobots, they're 0:19:36.760 --> 0:19:39.520 already got an amazing resolutions, So really they just form whatever, 0:19:40.240 --> 0:19:44.360 Like your idea twenty years away, Yeah, it's always away, 0:19:44.400 --> 0:19:47.399 yeah exactly, um No, but I mean so we can 0:19:47.480 --> 0:19:49.160 think of a few in the movies. I mean, there's 0:19:49.200 --> 0:19:51.639 tons of these things. But if you think of in 0:19:51.760 --> 0:19:55.320 Star Wars, like you mentioned earlier, Lauren, Princess Leah, or 0:19:55.400 --> 0:20:00.240 They or the Chess set, these are uh if it 0:20:00.280 --> 0:20:02.480 seems to have a little base and then coming up 0:20:02.520 --> 0:20:05.680 out of it, yeah, right, and it seemed, well, what 0:20:05.880 --> 0:20:08.720 it is is the thing that's amazing about it is 0:20:08.960 --> 0:20:15.240 the full simulation of volume from every angle, not attached 0:20:15.320 --> 0:20:17.920 to a screen. Right. So in other words, so it's 0:20:17.960 --> 0:20:20.800 not it's not taking advantage of your perspective. Right. You 0:20:20.880 --> 0:20:23.120 could walk around this thing and see it from any 0:20:23.200 --> 0:20:25.119 angle and it would be as if there were an 0:20:25.119 --> 0:20:28.000 actual person or thing in the room with you, not 0:20:28.160 --> 0:20:32.080 just a projection. So yeah, it seems to have all 0:20:32.119 --> 0:20:34.800 the qualities of an actual, real object. It's just it's 0:20:34.840 --> 0:20:37.760 one made out of light. But there's some obvious problems 0:20:37.840 --> 0:20:40.800 with this. I mean, we can project images that appear 0:20:40.960 --> 0:20:44.639 three D from a certain perspective, but um, you can't 0:20:45.000 --> 0:20:48.320 just project something into thin air and then make it 0:20:48.560 --> 0:20:51.359 stop right here. If we could, if we could control 0:20:51.480 --> 0:20:54.240 light like that, then lightsabers would be a thing. It's 0:20:54.240 --> 0:20:56.280 the same problem with lightsabers right, how do you turn 0:20:56.359 --> 0:20:59.800 on a lightsaber and have the light stop at saber 0:21:00.040 --> 0:21:02.920 length as opposed to just being a really destructive flashlight, 0:21:03.840 --> 0:21:05.320 you know. I mean that's the same sort of problem 0:21:05.320 --> 0:21:07.360 with the laser if you prefer be a laser gun, 0:21:07.520 --> 0:21:10.000 but with a lightsaber handle instead of an unstead of 0:21:10.000 --> 0:21:12.960 a gun handle. Um. Now, in the world of Star Wars, 0:21:13.119 --> 0:21:15.440 we can explain it by saying magic, because come on, 0:21:15.840 --> 0:21:18.000 it's really what Star Wars is. But there are other 0:21:18.280 --> 0:21:21.040