The Universe: Gravity

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Gravity is the most powerful and exacting force in the universe. It is pervasive and penetrating. Gravity binds us together, its reach hangs stars in the sky and its grip crushes light. Gravity holds planets together, and leashes them to their suns. Without gravity, stars, comets, moons, nebulae, and even the Earth itself would not exist. Explore how science and humanity discovered, overcame and utilized gravity. Learn what it takes to propel objects into the heavens, to ride a wave or to ski down a slope. Take a front row seat as an astronaut subjects himself to the weightless wonders of the specially modified aircraft used to train astronauts known as the “Vomit Comet.”

The Universe: Gravity, 8.3 out of 10 based on 14 ratings

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  • Natasja

    PROOF of H.A.A.R.P. At 42.55min. High Frequency Active Auroral Research Program. Weather Manipulation.

    • lolwut

      Even so, why the fuck would they want that? What could be done? Are they going to flood the world in the next month and a half? Better get my cubit stick.

      • PickMyName

        Um, doesn’t God use weather modification to punish America for allowing homosexuality?

  • Christina Ann

    when and where !!! ….42 minutes very cool !! how’s that for travel time ??

  • homie12

    the standard model of physics has gotten away with compiling theory on top of theory until they have seperated with reality. they create words and theoretical definitions. And they say if you cant understand it you’re not smart enough. the gravitational theoreist get away with lieing now since newton and they imbelish einstein and hero worship him as well when they cant even recreate his exotic ideas. And they vilify anyone who disagrees with them choosing to ignore how many times their predictions have been found to be wrong. so they change their story and call it theirs. When a few others have accurately predicted events in space ie the electric universe, they ignore it and pretend they saw things first. Like comets are not ice but are electrically equalizting when coming in and out of the solar system. And why its hotter at the suns corona than its surface or center

    • Dafuq?

       wow… you need to read more.

    • JesusLovesSomeOfYou

      I love sarcasm!! You’re a natural, keep it up. I loved the way you subtly introduced spelling errors and poor grammar to really sell the whole, “I’m a fucking idiot…duh….duhhhh….duh….” character. Well done. Bravo.

      Encore?

      • http://www.facebook.com/benjamin.smithson1 Benjamin Smithson

        hahaha

  • Journeyintosound

    Gravity is the weakest force in the universe

  • Luke

    homie12, your comment is nothing but pure drivel.  nearly all predictions by einstein have been proven since 1912, and the ones that have not been proven by direct observation, have basis in universally accepted mathematical theory.  therefore, your assertions make no sense whatsoever.  I am assuming that “comets are not ice but are electrically equalitzing” is some misguided attempt for you to prove your idiotic assertions.  What really happens is comets (made up of rock, water ice, and various gases to include carbon monoxide, carbon dioxide, methane, and ammonia {not to mention organic compounds including amino acids}) become ionized due to the photoelectric effect, produced by the Sun’s ultraviolet radiation.  Once a comet enters the Solar System, the Sun’s radiation basically vaporizes these volatile materials, and the comet forms a “coma”, basically an atmosphere.  Once this atmosphere is ionized it produces a “tail”, which in some cases can extend up to one astronomical unit or 150 million km.  The ion tail attains a net positive electrical charge which creates a “magnetosphere” around the comet.  I could go on and on about how terribly inaccurate your account of comets are, but I rather move on to the big bright thing in the sky, you know, the Sun.
    The core of the sun is estimated to range from the center to about 25% of the total size.  It has an estimated density of 150g/cm^3.  The core temperature is around 15.7 MILLION KELVIN!  99% of the Sun’s thermal energy is produced in the core out to about 24% of radius, around 30% fusion stops (fusion being the process by which the Sun burns its “fuel”.)  The surface temperature is around 5,800 KELVIN!  From the surface down to about 70% of the solar radius, the thermal plasma is not dense enough to continue to carry the thermal radiation produced by the core, therefore there is a large decrease in temperature.  Areas of the chromosphere can reach up to 20,000K depending on altitude, by this point helium is becoming ionized, and at higher altitudes within the chromosphere the temperature can reach up to 1,000,000 K.  Further past this area, is the corona, which produces the solar wind.  Areas in this region are normally found to be between 1,000,000-2,000,000 K.  This is an active area of current research, while magnetic reconnection has been said to account for some of the rise in temperature, a full theory has not been produced.  As far as I can tell the most active research areas are focused primarily on flare heating mechanisms.  Hope this has been informative “homie”.

    • http://www.facebook.com/benjamin.smithson1 Benjamin Smithson

      well said.

  • TheOne

    Please fix the description. Gravity is the weakest force in the universe, yet it is pervasive and penetrating. There I even fixed the sentance for you… Is it better than yours.. I am not saying is… It’s just a simple fix…Do you care… probably not.. Ill come back here in 6 months and see.

  • Fred Bazzeeda

    doesn’t work. youtube account associated with this video has been terminated.

  • stickler

    Also it doesn’t “bind us together”

  • andrew

    Blah-blah . No movie