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Space Station Parts - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect segment explaining each components of the International Space Station and how these parts work together.

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How will a space shuttle attach to the ISS? 00:00:00
Describe two ways that the International Space Station will stay in Earth's orbit. 00:00:04
Describe the function of the solar arrays, thermal radiators, robotic arm, and truss. 00:00:09
I'd like to welcome NASA Connect this morning to the Johnson Space Center here in Houston. 00:00:17
My name is Connie VanPray-Cremins and I work 00:00:22
with the International Space Station program doing outreach and communications. 00:00:24
What we're building in outer space is a world-class research facility. 00:00:28
The United States NASA is the lead integrator of the program. 00:00:32
ESA, the European Space Agency, the Russian Space Agency, the Japanese Space Agency, 00:00:35
and the Canadian Space Agency all own the International Space Station 00:00:41
and as partners bring elements and people and training and research and all the facilities 00:00:45
that we're building to our orbiting facility. 00:00:51
In 1998 we began with a Russian-built, U.S. paid-for module called Zarya. 00:00:54
What it was is the initial power block and brains of the station. 00:01:00
Soon after that we launched Unity. 00:01:05
That was a Boeing-built, United States element. 00:01:07
Unity is one of three connecting bridge modules 00:01:10
that will be put on the International Space Station. 00:01:13
After we put Unity up came the service module. 00:01:16
That's an entirely Russian element. 00:01:20
It's Russian-built and Russian-launched and the service module actually took over much 00:01:22
of the functions that we had of Zarya and it also is the place 00:01:26
where the astronauts live, work, and sleep. 00:01:30
How does the shuttle dock to the space station? 00:01:34
Well, that's what Unity provides. 00:01:36
Unity has six docking ports so the shuttle comes up and docks 00:01:38
to a pressurized mating adapter which is attached to the Unity bridge 00:01:42
and then through there supplies can be moved into the space station. 00:01:46
So how will the station get power for the astronauts to use? 00:01:49
From the sun. 00:01:53
What the International Space Station has is a series 00:01:55
of giant solar arrays, photovoltaic solar arrays. 00:01:58
We have one set of arrays up there right now. 00:02:02
There will be four in total that will be aligned along the truss. 00:02:05
What exactly is a truss? 00:02:09
The truss is a backbone girder-like structure and you'll see this long, 00:02:10
almost like steel beam crate box. 00:02:15
And that is literally what these solar arrays are going to be attached to. 00:02:19
It's what modules are hung from and the astronauts will be walking along it. 00:02:22
Also walking and riding along it will be the Canadian robotic arm system 00:02:27
for the International Space Station. 00:02:32
Attached to the arm is what we call a special dexterous manipulator system 00:02:34
or a very smart hand that can go along and pick up different parts, 00:02:39
modules and move it around. 00:02:44
Okay, so I know that the solar arrays are on the truss, 00:02:46
but what are the other like panel things? 00:02:49
Van, you're probably talking about the thermal radiators. 00:02:52
That's the heat rejection system. 00:02:54
Much like an air conditioning system would function in your home, 00:02:57
the job of these radiators is to collect the buildup of heat 00:03:01
and power generated internally and use it to move that heat outside the 00:03:04
space station and dump it into space so that we can maintain comfortable 00:03:09
levels of working for the astronauts and for the systems. 00:03:13
Now I know the ISS is in a state of free fall, Connie, 00:03:17
but how does it stay up in orbit? 00:03:19
Well, initially we have attitude control thrusters that will continue 00:03:21
to operate throughout the life of the station. 00:03:25
These are the little jets that use fuel to keep our attitude. 00:03:28
What do you mean by attitude control? 00:03:32
Well, Jennifer, the space station has to maintain a certain position 00:03:34
as it's being constructed. 00:03:38
We want to get the maximum exposure to the sun for the arrays, 00:03:39
so the attitude control is what keeps this position of the station. 00:03:44
So how do you know the pieces are going to fit together 00:03:48
when you get them in space? 00:03:51
Well, this is part of the miracle challenge that confronts 00:03:52
the International Space Station program because these major elements 00:03:55
have to fit together with hairline tolerance the first time 00:03:58
when they're attached in Earth orbit. 00:04:02
All the flight elements are literally put in line on their way 00:04:04
to get integrated into the shuttle. 00:04:07
What we can't do physically, we're doing through software. 00:04:09
In fact, controlling the International Space Station is going to take 00:04:11
more than two million lines of computer code. 00:04:14
And we're learning valuable things through that testing. 00:04:18
We're fixing problems before they ever become a problem on orbit. 00:04:20
Thank you so much, Connie. 00:04:23
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Idioma/s:
en
Materias:
Matemáticas
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:
729
Fecha:
28 de mayo de 2007 - 16:54
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
04′ 25″
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:
26.68 MBytes

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