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The sun - Contenido educativo

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Subido el 7 de octubre de 2022 por Rafael A.

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Our Solar System. Have you ever looked up into the sky and wondered what was there? Higher than 00:00:07
the birds, past the clouds, and farther than the moon, a whole host of fascinating objects spin in 00:00:31
outer space. Let's imagine for a moment that we can leave the earth behind and explore the solar 00:00:37
system that surrounds it. 00:00:46
We call it the solar system because everything in it is centered around the sun, and solar 00:00:50
means something to do with the sun. 00:00:55
The sun is a star, just like many of the stars that you can see in the night sky, just many 00:00:58
times closer to us. 00:01:04
Still, the sun is very, very far away from the earth, almost 93 million miles away. 00:01:06
That's why it looks so small, even though it's the biggest object in the solar system. 00:01:15
In fact, the Sun makes up more than 99% of the mass in the solar system. 00:01:21
If you put all of the planets, moons, asteroids, comets, and everything else in the solar system 00:01:27
together, they would make up less than one quarter of a percent of it. 00:01:33
The Sun is so big that it's more than 100 times wider than the Earth, and if it were 00:01:39
a giant jar, you could fit more than 1 million Earths into it. 00:01:45
More than that, the Sun is what holds the solar system together. 00:01:51
Its massive gravity is what keeps the Earth and all the other planets circling around 00:01:56
it instead of drifting off into space. 00:02:01
The Sun is also what allows us to live on Earth. 00:02:05
Without the sun, there would be no heat, there would be no light, plants could not grow, 00:02:09
water would freeze, and nothing could survive. 00:02:15
The sun gives us heat and light because it is always burning. 00:02:18
It is a giant ball of gas, mostly hydrogen and helium, and it burns at millions of degrees 00:02:23
in its center. 00:02:30
Let's leave the sun now, to explore the planets. 00:02:32
Subido por:
Rafael A.
Licencia:
Dominio público
Visualizaciones:
6
Fecha:
7 de octubre de 2022 - 18:50
Visibilidad:
Público
Centro:
CP INF-PRI SAN JOSE DE CALASANZ
Duración:
02′ 37″
Relación de aspecto:
1.78:1
Resolución:
1024x576 píxeles
Tamaño:
111.91 MBytes

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