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Mirrors, Light, and Illusion

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Why? Files segment explaining how light can be manipulated to create illusions.

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I wonder if the illusionist, Franz Harari, uses mirrors to make things disappear. 00:00:00
Maybe he uses light mirrors. 00:00:05
Like he'd ever tell us his secrets. 00:00:07
I'm never telling them mine. 00:00:09
Maybe we should go to Franz's website to find out more about him. 00:00:11
Oh look, he's doing a live chat. 00:00:14
Just click here and we can talk to him. 00:00:16
Hi Franz! 00:00:18
Oh, hey there. Who are you? 00:00:20
We are the Treehouse Detectives, and we wanted to know how you make things disappear. 00:00:22
Detectives? You're going to love this. 00:00:26
I'm sitting in the cockpit of NASA 747. 00:00:29
Now check this out. This is actually the official shuttle carrier aircraft. 00:00:32
It's what NASA uses to move the space shuttle from one city to the other when it's not in space. 00:00:37
I mean, right now we're parked at NASA Dryden Flight Research Center. 00:00:42
And I was here because I was checking out this airplane they have. 00:00:46
This is the coolest jet aircraft ever. 00:00:49
And I'm thinking I'd like to make it disappear. 00:00:52
You can do that? 00:00:55
Well, I'm not going to give you all my secrets. 00:00:57
But if you want, come on out and check it out for yourself. 00:00:59
Yeah, right. How are we going to get to NASA Dryden? 00:01:02
It's easier than you think. 00:01:05
Check out your keyboard there. You see that? 00:01:07
There's one button you haven't used yet. 00:01:09
Right over there. 00:01:11
This one right here. 00:01:13
Wow, we really made it! 00:01:20
I can't believe he really got us to California. 00:01:23
Where's Franz? 00:01:26
Hey kids, welcome to NASA. How was your trip? 00:01:28
Where is he? 00:01:31
Look, he's up there. 00:01:33
Our trip was pretty wild, but I liked it. 00:01:35
Whoa, I really like magic stuff. 00:01:40
How did you get down here? 00:01:46
Well, you know, at NASA, anything's possible. 00:01:49
Now, how can I help you guys? 00:01:52
We're investigating a problem that deals with the properties of light. 00:01:54
I'm a big fan of yours, and I think you use light to help things disappear. 00:01:59
Well, to be honest, in my business, light is everything. 00:02:04
Now, I'm not going to give you all my secrets, but come on, I'll show you something cool. 00:02:08
Alright. 00:02:12
I'm sort of all set up to do a little demonstration here. 00:02:16
Now, here's a little model of an SR-71 Blackbird. 00:02:19
This is like my favorite plane. It's so cool. 00:02:23
This plane, the real plane, can actually go from New York to Los Angeles in like an hour. 00:02:25
It's amazing. 00:02:30
Now, you see the model, but the reason that you see this model 00:02:31
is because light is hitting the model and then bouncing back and hitting your eyes. 00:02:34
And your eyes are telling your brain that this little airplane is actually there. 00:02:39
Imagine this. 00:02:43
Imagine that we put just a reflection of my hand in there. 00:02:45
Well, we've seen that a bunch of times, but now you add another hand, 00:02:48
and now you go into kind of a symmetrical world, and watch this. 00:02:53
Your brain almost tells you the reflection of the hand is the real hand. 00:02:57
See that? Pretty cool, huh? 00:03:02
That's where it gets really magical. 00:03:05
Now, I was telling you about my little model here, the SR-71. 00:03:07
Let's see if we can't do some real magic with it. 00:03:12
I need some magic words. You got any magic words? 00:03:15
Abracadabra. 00:03:18
Abracadabra. That'll work perfect. 00:03:19
Watch. 00:03:21
The reflection becomes reality. 00:03:23
And there's one for you and one for you. 00:03:27
Let's try this trick one more time, 00:03:31
and this time you figure out if you can see how light made it all work, all right? 00:03:33
All right. 00:03:37
Come with me. 00:03:38
I couldn't help but notice you guys both have planes, but I don't have one, but I have an idea. 00:03:39
How would you feel if I borrowed your little model for just a moment? 00:03:44
All right. 00:03:47
Cool with that? 00:03:48
All right, I'll tell you what. 00:03:49
You guys stand over there. 00:03:50
Don't take your eyes off what's about to happen over here, 00:03:51
because that's where the real magic is about to begin, all right? 00:03:54
We will hold onto this shot until after that SR-71 has disappeared. 00:03:59
Gentlemen, raise the tarp. 00:04:06
All right, check it out. 00:04:09
Wow! 00:04:13
That's it! 00:04:17
How did you do that? 00:04:19
That was amazing. 00:04:23
How did you do it? 00:04:24
When I do it, it's all about light. 00:04:25
I need to make a phone call. 00:04:28
Oh, sure. Go for it. 00:04:30
Hi, Dr. D. 00:04:33
Hi, guys. 00:04:34
What's all that? 00:04:35
Thought I might be able to help you with your light experiments. 00:04:36
Where are Jacob and Bianca? 00:04:38
I don't know. 00:04:39
They were supposed to meet us here. 00:04:40
Hello? 00:04:44
Hi, Dr. D. 00:04:45
It's Bianca. 00:04:46
We're over at NASA Dryden. 00:04:47
We're running a little late. 00:04:49
We'll be there soon. 00:04:50
Where are you? 00:04:51
I'll be right there. 00:04:53
Well, you're definitely great at what you do, but we've got to get back home. 00:04:55
Oh, well, I have an idea. 00:05:00
Go ahead and assume the position. 00:05:02
What? 00:05:04
Assume the position. 00:05:05
Oh. 00:05:06
Yeah, there you go. 00:05:07
Ready? 00:05:08
And when I say go, blink. 00:05:09
You ready? 00:05:11
Go. 00:05:12
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Idioma/s:
en
Niveles educativos:
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Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
286
Fecha:
28 de mayo de 2007 - 15:32
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
05′ 17″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
480x360 píxeles
Tamaño:
31.78 MBytes

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