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  • Universe Painted in Light
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    Envoyée le mercredi 14 juillet 2010 21:56:38
    par SpaceRip
    Vue 35887 fois
    4.8 / 5
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    606 vote(s)

    Watch this and other space videos at http://SpaceRip.com

    In 1080p, enjoy the unusual visual style in this adaptation of the ground-breaking "Science on a Sphere" production, including depictions of Earth. From NASA and NOAA, with additional images from ESA Hubble.

    We perceive light--we see it—but what we see and what it means are not the same. Without context, detail means nothing.

    Oh, there are so many factors at play here: what wavelengths of light can we see, how well can our brains take what we see and turn it into something we understand?

    And also, how do we compare ourselves to the thing we're observing? What tools do we use to help us capture information? How do we turn light into data, data into pixels, pixels into meaning? Start with a planet.

    For example, Earth. And as long as we're at it, let's tip the Earth to spin properly on its axis. Now, recall our original points of light. Our idea.

    These are satellites in orbit. Satellites collect data as the Earth rotates beneath them.

    Think of satellites as paint brushes working in reverse: instead of painting planets with light, satellites collect light reflected from planets below. With enough data we can paint a world.

    Data that make this image come from instruments on two NASA satellites called AQUA and TERRA. These instruments see the Earth in what we might regard as "natural color."

    They can also see certain events as they happen. There, splattered like white paint on a blue canvas, something important: Hurricane Katrina.

    These satellites are only two of many that can see hurricanes. The stripes you see building up come from a unique spacecraft called TRMM. Among the many remarkable things TRMM can do, it can look inside hurricanes like nothing else in the world.

    See for yourself. TRMM sees the actual body of the beast in three dimensions. Orange and red zones indicate higher rainfall rates. Cloud spires called hot towers drive the storm's greedy grab for energy.

    The Earth changes. It breathes. And it surprises. Though we live on a planet largely covered by water, we often forget that huge tracts are frozen solid. Let's change the perspective.

    Ice covers much of the world. The eternally frozen parts are called the Cryosphere. It's the planet's thermostat, and a hydrological warehouse, and in terms of a changing climate, it's the canary in a coalmine.

    You may live your whole life and never visit these places, but these places will affect your life nonetheless.

    You know this place. The Moon. Earth's closest neighbor is little more than a beautiful stranger across an airless room. There are mysteries here and answers. And, like love, perhaps, destiny.

    Back on Earth, day and night change like moods, with points of light pricking the darkness like vaguely remembered dreams. City lights shine into space at night, like ancient campfires, like candles of civilization.

    No other place beyond the Earth shows signs of life like this, or shows signs of life at all. But we're looking.

    Before we can find life elsewhere, we need to be good at reading its signs at home first. And on Earth, life is everywhere.

    This is the living Earth: the biosphere. Phytoplankton bloom in vast oceanic fields. Land plants pulse rhythmically with seasonal growth. Together, these sound the global heartbeat, the pulse of life powered by the sun.

    The Sun. All energy on Earth comes from the sun.

    The Moon...the Earth...the Sun: celestial spheres we see and feel everyday. But in our solar neighborhood, there are other places, too. Fabulous places. Mysterious places.

    As a tourist destination, Mars has an impressive brochure. The longest, deepest canyon in the solar system. A volcano so high it's peak climbs above most of the Martian atmosphere. Nothing like these places exists on Earth. Nothing.

    This is from a NASA mission called WMAP. If the whole universe were a person, this would be its first baby picture. There are no stars here, no galaxies, certainly no planets. But there is energy. The rest came soon enough, once the new kid could collect herself.

    This is the universe we see today. It's a lively place. That's a gamma ray burst, spotted by NASA's "SWIFT" satellite. These cosmic blasts have long puzzled scientists. They may be stars collapsing in upon themselves, or two densely packed remnants of stars merging together.

    But in either case, scientists believe they herald the births of black holes. They're the most powerful explosions in the universe after the Big Bang. And they seem to happen all the time, as often as once a day.

    We look outwards as much as we look inwards, for if there is any certainty in the journey of knowledge it's that travel in any direction can lead to the same destination.

    We see only what we look for, and in space and on Earth we seek the wisdom to ask the right questions.



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  • NElectronicSoul

    This is of no use to anyone, let alone people who are new to it, what are they suppose to gleam from this, what basis for understanding does it provide in between the jazz funk and the husky voiced narrators poetic licence?
    jeudi 10 mai 2012 09:28:33
  • Lgw1984

    This is some weird shit...
    mardi 07 février 2012 18:24:35
  • FelipeZucchetti

    NICE...
    jeudi 01 décembre 2011 00:59:34
  • subh1

    oh, how bad I miss Dr. Sagan!
    samedi 05 mars 2011 15:06:03
  • thatunit995

    man this is awesome, does somebody knows the name of the song thats playing at 05:47?
    samedi 19 février 2011 08:12:04
  • SpiritTracker7

    This narrator borrows dialog style from "The Meatrix's" and Mr. Smith from The Matrix. He then changes it a few more times... he changes his narrator speech style like 6 times or more.
    dimanche 02 janvier 2011 12:07:17
  • Ivin3690

    narrator's so dramatic
    vendredi 03 décembre 2010 03:57:14
  • lebkha

    geniussssssssssssssssssssssssssssssssssss
    samedi 13 novembre 2010 04:42:42
  • patricksan460

    What's the title of the first song?
    mardi 02 novembre 2010 08:43:05
  • Caine0413

    According to the credits, the music was given rise by an individual known as "Andre Gribou", but lengthy research has proven this individual's music quite elusive. Any assistance to my noble endeavor would be most appreciated. I'm sure we could work out some sort of...arrangement.
    jeudi 21 octobre 2010 18:58:27
  • Thedeadhenrys

    Belief in god and belief in no god are exactly the same- a belief. You could say "I cannot prove God doesn't exist therefore he exists" or you could say "I cannot prove God does exist therefore he doesn't exist" and both ways are leaps of faith- belief in a story. My theories on human understanding are a bit complex for a Youtube comment, so let's just say your perspective and my perspective don't sit comfortably together. God is too simple a concept- a kids story.
    dimanche 10 octobre 2010 08:54:19
  • fastonfeat

    I have examined both and chosen one. To paraphrase, do you think that I both did and did not get up this morning? That I both did and did not eat breakfast? Or do you say truth=ignorence=observation=lies? I.e. truth=lies? Are you confused? Do you need help? Do you even think that way anymore? You sound like you question our existence. Be careful with an open mind: you may find yourself believing something that is not true. You cannot accept both yes and no.
    samedi 09 octobre 2010 23:31:55
  • depth386

    Bah this video touches every major topic for like 10 seconds but teaches you nothing new unless you're... well, new.
    samedi 14 août 2010 21:24:06
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