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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Sci Files segment exploring the new technology of Personal Air Vehicles and how the new air transportation system is being developed.

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Oh, hi. You must be RJ. I understand that you want to learn more about personal air 00:00:00
vehicles, or we call them PAVE for short. Yes. Our class assignment is to try to determine 00:00:06
what transportation will look like in a hundred years. Now, from what I know from the PAVE, 00:00:12
it sounds like a project of the future. Is it actually a flying car? The basic idea behind 00:00:17
PAVE is not so much to make a flying car, but to make an air transportation system with 00:00:21
many of the same characteristics that we really like about cars. So how will PAVE work? 00:00:25
First, we need an airspace system that works a lot more like our highway system, with small 00:00:30
airplanes that work a lot more like our cars. How do you build highways in the sky? There 00:00:34
are already 5,000 airports, and many of them are hardly used. The Small Aircraft Transportation 00:00:38
System, or SAS for short, is working on low-cost electronics in order to give even the smallest 00:00:43
of these airports all-weather capability. These small airports could then be safely 00:00:49
used by anyone who'd like to fly instead of drive. Sounds great. What would a personal 00:00:53
air vehicle look like? Well, we have several concepts that range from mild to wild. On 00:00:59
the mild side, it looks a lot like small airplanes of today, but with some big differences. For 00:01:04
example, there will be a ducted fan instead of a propeller, and engine muffling. Both 00:01:08
will dramatically help to reduce noise. Now, I know airplanes are really expensive. Will 00:01:13
I be able to buy my own PAVE? It will be more expensive than a car, but less than an airplane, 00:01:18
and that's because it will use a lot of car parts and have a streamlined design. Are planes 00:01:23
difficult to fly? Right now, we have robotic airplanes that do most of their flying without 00:01:27
help, but they're not that reliable. So, what's a wild PAVE going to look like? Well, it's 00:01:32
called a gridlock commuter, and it looks like a great big duct that carries one or two people. 00:01:36
It doesn't go very far or very fast, but it only needs the space of a baseball field to 00:01:41
take off and land, and the best part is that you can drive it on local streets. Why does 00:01:44
it need to drive on the streets? To reduce what we call intermodal delay. Intermodal 00:01:49
delay? Yes, intermodal delay is the time we spend going from one mode of transportation 00:01:53
to the other. For example, today, we drive to the airport, park, walk to the airplane, 00:01:58
fly, and then reverse the process. Wouldn't it be nice if you could just have your airplane 00:02:04
take you the whole way? It sure would, but of course, we couldn't fit an airplane in 00:02:08
our garage. No, but you could live in a community that centers around a small airport, and all 00:02:13
of the houses would have a hangar as well as a garage. Is that what transportation is 00:02:18
going to look like in a hundred years? Actually, they already exist. There are at least six 00:02:22
airparks here in Virginia now, and there are many more across the United States. Wow, that's 00:02:26
awesome. Are there any other benefits to PAVE? Yes, PAVE makes it possible to have more choices 00:02:31
about where to live, work, or go to school. Studies have shown that most people are unwilling 00:02:37
to spend more than a little over an hour commuting. Before cars, you could only go a couple of 00:02:41
kilometers in an hour, but with modern cars, you can go 40 or 50 kilometers in about the 00:02:46
same time in heavy traffic. We're learning a lot about traffic. Dr. D and a couple other 00:02:51
treehouse detectives are still stuck on the highway. With a PAVE, that problem would be 00:02:56
eliminated for the most part. You would also be traveling at faster speeds than driving, 00:03:01
and there would be a reduction of intermodal delay. All these things would allow you to 00:03:06
live 95 or more kilometers away from work, which would make it possible for you to enjoy 00:03:09
both an urban and a rural lifestyle. That's awesome. That means I could live near my grandma 00:03:14
in the country and still work in the city. That sounds great. How soon will PAVE be available? 00:03:19
We're hoping to have a full-size flying demonstrator by 2010. After that, it could be as little 00:03:25
as two years for a manufacturer to put them in showrooms right next to old-fashioned cars, 00:03:29
so maybe by 2012. 2012? That's a lot less than 100 years. Leave it to NASA to be on 00:03:33
the cutting edge. Thanks, Mr. Hogg. You're welcome, and good luck, and don't hesitate 00:03:40
to call me if you need anything else. All right. Bye. Bye-bye. 00:03:44
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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:
411
Fecha:
28 de mayo de 2007 - 15:33
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
03′ 48″
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:
22.93 MBytes

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