4-H Curricula: Design and Technology.0:02
Holography: The New 3D.0:20
We're all familiar now with 3D technology in films and on TV, but it seems all this might soon be competing with an even more advanced technology: holography.0:32
Whereas a 3D image appears on a flat screen, a holographic image is a laser projection of light that looks as if it was standing right in front of you, allowing you to walk around and even through it.0:45
Ever since a holographic Princess Leia appeared out of the robot R2-D2 in Star Wars, sci-fi fans and researchers have dreamt of the day when such technology would become a reality.1:04
Well, that day is almost here.1:18
CNN used holographic technology during the 2008 US presidential election coverage to make their news correspondent appear as if she was in the studio, even though she was several states away.1:21
Actually, this wasn't real holography, but a superimposition technique, which had been known for years.1:37
As for the internet, we got the first glimpse of what this might look like in the 2002 movie There Would Be No Mouse or Keyboard, just a holographic screen allowing you to walk through the internet using your hands1:45
True holography remains very difficult and expensive to create and project.2:07
It also requires high-powered lasers, which are dangerous to use around people.2:11
There's another method, however, that uses an updated 19th-century theater trick called Pepper's Ghost.2:16
An image is projected from below onto an angled sheet of glass at the front of the stage.2:23
This creates an extremely lifelike image that appears on stage.2:29
That's how many stars who have passed away now perform on stage once more and look very lifelike.2:34
Hatsune Miku, a Japanese pop star, performed a sellout tour and topped the charts using a similar setup.2:40
Yes, you've guessed it, she's not real either.2:48
One of the most effective uses of 3D images was seen in 2012 in the Indian state of Gujarat.2:54
Using the Pepper's Ghost method, the Indian politician Narendra Modi gave an election speech in 53 locations across 26 cities simultaneously.3:03
In the following days, he made 5 3D broadcasts which were viewed in 180 locations.3:16
Modi won in Gujarat and 2 years later became Prime Minister of India.3:24
It will be many years before we have the holographic gadgets promised to us by science fiction films, where we and our friends can appear in each other's living rooms.3:31
However, the examples above show the winning power of the 3D presence of a person, even if it's only simulated.3:41
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