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The Design Process

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Sci Files segment exploring the design process and how wind tunnels are used in this process.

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Nice to meet you, Mr. Wozzeck. 00:00:00
Nice meeting you. 00:00:03
This is a wind tunnel, isn't it? 00:00:04
What do you do here? 00:00:06
We're testing a new kind of airplane. 00:00:08
A micro air vehicle, or MAV for short. 00:00:10
Is this a real plane? 00:00:14
It looks more like a bird or a bat or something. 00:00:16
Well, you're pretty close. 00:00:19
It's about the size of a bird. 00:00:20
And we use what we know about how birds, bats, and insects fly to help design it. 00:00:22
Do you test your models? 00:00:26
Yes, testing is an important part of the design process. 00:00:28
That's why we're here, to learn more about the design process. 00:00:30
Well, design is the process by which you turn ideas into reality. 00:00:33
Ideas often involve contributions from many different people. 00:00:37
We collaborate or work together by sharing ideas to improve our design. 00:00:40
Kind of like us. 00:00:45
We work together as a team. 00:00:46
We collaborate. 00:00:48
That's great. 00:00:49
For MAVs, we're working with aerodynamicists, controls engineers, 00:00:50
wind tunnel engineers, technicians, and even biologists. 00:00:53
Biologists? 00:00:56
That's right. 00:00:57
Biologists help to better understand how animals fly. 00:00:58
And we can design and build airplanes that use the same principles. 00:01:00
Through collaboration, we help each other, and we can iterate to get a better design. 00:01:03
Iter what? 00:01:07
Iterate. 00:01:08
It almost always takes lots of tries and retries before you get an effective design. 00:01:09
Iteration refers to the process by which we design, build, test, and analyze our data. 00:01:13
Data collection is another part of the scientific process. 00:01:18
From our data, we modify our design. 00:01:22
We repeat the process over and over again until we get it right. 00:01:25
So collaboration and iterative design help you come up with this. 00:01:28
But what are you going to do with such a small plane? 00:01:32
Well, we're going to use it to be our eyes and other senses 00:01:35
to go to places we can't get to or are too dangerous to go. 00:01:38
That is so awesome. 00:01:41
I guess we need to get back to the tree house so we can collaborate and iterate. 00:01:43
That's right. 00:01:47
And remember to use what you learn to make your designs better. 00:01:48
Thank you very much, Mr. Wozak. 00:01:50
This was really great. 00:01:52
Oh, yeah. Thanks a lot. 00:01:53
See you. 00:01:54
Bye. 00:01:55
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Idioma/s:
en
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
156
Fecha:
28 de mayo de 2007 - 15:33
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
01′ 57″
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:
11.81 MBytes

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