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ISS Basics - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect segment exploring the International Space Station. The video explains the basic facts and statistics about the ISS.

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Today, we're at NASA Johnson Space Center here in Houston. 00:00:00
Why? 00:00:04
To learn about the International Space Station, or the ISS, 00:00:05
and the people who make it work. 00:00:09
The ISS is a huge laboratory being built in orbit. 00:00:11
Scientists on the ground will send their research to the station 00:00:15
to be performed by astronauts from all around the world. 00:00:18
There are 16 countries participating in the largest 00:00:21
and most expensive laboratory ever built in space. 00:00:24
By working together rather than competing, 00:00:27
top scientists from around the world can collaborate 00:00:29
and share information. 00:00:32
Using the United States Space Shuttle 00:00:34
and various rockets from other countries, 00:00:36
it will take more than 100 spaceflights 00:00:38
to assemble the 100-plus components of the ISS. 00:00:40
The ISS will be about the size of a football field. 00:00:44
It will weigh approximately 1 million pounds 00:00:47
or over 100 adult elephants, 00:00:50
approximately total the volume of a 747 jumbo jet, 00:00:52
and generate enough power to light up more than 40 average homes. 00:00:55
How will the International Space Station get all that power? 00:00:59
From the sun. 00:01:02
Giant solar arrays will capture the energy from the sun 00:01:04
and convert it to electricity. 00:01:07
We'll learn more about the parts of the space station 00:01:09
and what they do a little later. 00:01:12
As we witness from the Expedition 1 crew, 00:01:14
the first full-time residents on the ISS, 00:01:16
the space station now supports human life. 00:01:18
During Expedition 1's five-month space stay, 00:01:21
the crew of the space shuttle Atlantis 00:01:24
delivered and installed the first U.S. laboratory, DESTINY. 00:01:26
This lab, built by the Boeing Company 00:01:30
at the NASA Marshall Space Flight Center, 00:01:32
is the centerpiece for scientific research on the station 00:01:34
and will support many experiments. 00:01:37
Space station crews will continue to rotate shifts 00:01:39
every four to six months, 00:01:42
preparing the station for the arrival of more components 00:01:44
and beginning scientific research. 00:01:47
Why build an International Space Station? 00:01:49
Great question. 00:01:52
If you'd like to study sound, you'd go to a quiet room. 00:01:53
If you'd like to study light, you'd go to a dark room. 00:01:56
And if you'd like to study the effects of gravity, 00:01:59
you'd want to go into an anti-gravity room. 00:02:01
But since there's no such thing on Earth, we have the ISS. 00:02:04
On board the ISS, a microgravity environment is created. 00:02:08
This is where the effects of gravity are reduced 00:02:12
compared to those experienced here on Earth. 00:02:15
You see, the ISS is in a continuous state of free fall around the Earth, 00:02:18
causing the astronauts and objects inside 00:02:22
to appear to float and be weightless. 00:02:25
You can experience free fall when you jump off a diving board. 00:02:28
You are practically weightless until you hit the water. 00:02:32
But how does this space station stay in orbit 00:02:36
if it's falling towards the Earth? 00:02:39
Here's an analogy. 00:02:41
300 years ago, a great scientist by the name of Sir Isaac Newton 00:02:42
imagined an experiment in his head. 00:02:46
He pictured a cannon on top of a very tall mountain. 00:02:48
When he fired the cannon, the cannonball would soon fall to Earth. 00:02:51
But if he used a cannon with more power, 00:02:54
the cannonball would go halfway around the Earth before it landed. 00:02:57
And if he used a super-duper cannon, 00:03:00
the cannonball would go so fast that it would fall at the same rate 00:03:02
that the Earth's surface is curving away beneath it. 00:03:05
This super-fast cannonball would never hit the Earth. 00:03:09
It would be in orbit. 00:03:12
And if you were sitting on the cannonball, you would feel weightless. 00:03:13
NASA uses rockets instead of a cannon, 00:03:16
and the ISS instead of a cannonball. 00:03:19
By understanding the effects of gravity, 00:03:21
we can learn why things behave the way they do. 00:03:23
Take the human body, for instance. 00:03:25
How does a microgravity environment affect the residents of the ISS? 00:03:27
One of our guests will fill us in. 00:03:31
The ISS will also give students like you 00:03:32
first-hand experience with the space program. 00:03:35
Get this, from your own classroom, 00:03:37
you can talk via amateur radio to the astronauts on board the ISS. 00:03:39
Or learn about Earth from the unique perspective of space with EarthCAM, 00:03:44
which stands for Earth Knowledge Acquired by Middle School Students. 00:03:48
The EarthCAM has already flown on five shuttle missions 00:03:52
involving students nationally and internationally. 00:03:54
Visit the EarthCAM website to learn more. 00:03:57
And don't forget, later in the show, 00:04:00
you'll be constructing your own model of the ISS. 00:04:02
But before we do that, 00:04:04
let's learn about some of the parts that make up the space station. 00:04:06
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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:
390
Fecha:
28 de mayo de 2007 - 16:54
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
04′ 08″
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:
24.94 MBytes

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