Is the Universe Infinite?
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Watch this and other space videos at http://SpaceRip.com Explore the biggest question of all... in 1080p. How far do the stars stretch out into space? And what's beyond them? In modern times, we built giant telescopes that have allowed us to cast our gaze deep into the universe. Astronomers have been able to look back to near the time of its birth. They've reconstructed the course of cosmic history in astonishing detail. From intensive computer modeling, and myriad close observations, they've uncovered important clues to its ongoing evolution. Many now conclude that what we can see, the stars and galaxies that stretch out to the limits of our vision, represent only a small fraction of all there is. Does the universe go on forever? Where do we fit within it? And how would the great thinkers have wrapped their brains around the far-out ideas on today's cutting edge? For those who find infinity hard to grasp, even troubling, you're not alone. It's a concept that has long tormented even the best minds. Over two thousand years ago, the Greek mathematician Pythagoras and his followers saw numerical relationships as the key to understanding the world around them. But in their investigation of geometric shapes, they discovered that some important ratios could not be expressed in simple numbers. Take the circumference of a circle to its diameter, called Pi. Computer scientists recently calculated Pi to 5 trillion digits, confirming what the Greeks learned: there are no repeating patterns and no ending in sight. The discovery of the so-called irrational numbers like Pi was so disturbing, legend has it, that one member of the Pythagorian cult, Hippassus, was drowned at sea for divulging their existence. A century later, the philosopher Zeno brought infinity into the open with a series of paradoxes: situations that are true, but strongly counter-intuitive. In this modern update of one of Zeno's paradoxes, say you have arrived at an intersection. But you are only allowed to cross the street in increments of half the distance to the other side. So to cross this finite distance, you must take an infinite number of steps. In math today, it's a given that you can subdivide any length an infinite number of times, or find an infinity of points along a line. What made the idea of infinity so troubling to the Greeks is that it clashed with their goal of using numbers to explain the workings of the real world. To the philosopher Aristotle, a century after Zeno, infinity evoked the formless chaos from which the world was thought to have emerged: a primordial state with no natural laws or limits, devoid of all form and content. But if the universe is finite, what would happen if a warrior traveled to the edge and tossed a spear? Where would it go? It would not fly off on an infinite journey, Aristotle said. Rather, it would join the motion of the stars in a crystalline sphere that encircled the Earth. To preserve the idea of a limited universe, Aristotle would craft an historic distinction. On the one hand, Aristotle pointed to the irrational numbers such as Pi. Each new calculation results in an additional digit, but the final, final number in the string can never be specified. So Aristotle called it "potentially" infinite. Then there's the "actually infinite," like the total number of points or subdivisions along a line. It's literally uncountable. Aristotle reserved the status of "actually infinite" for the so-called "prime mover" that created the world and is beyond our capacity to understand. This became the basis for what's called the Cosmological, or First Cause, argument for the existence of God.
Тэги: universe space infinity black holes einstein galileo hawking cantor aristotle plato archimedes zeno greeks mathematics astronomy cosmology copernicus galaxies inflation big bang hubble guth nasa esa aliens hotel infinite monkey theorum paradox stars antimatter cosmic cosmos pi consciousness ovni shuttle ufo ufos philosophy earth moon planet
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another, younger or even older universe, it could be that there is no edge, it could be anything, we don't know yet, for now all we can do is guess...
never know what is beyond the edge because we will never catch up to it.
energy which has been taking infinite forms and forming infinite dimensions,universes and existences since infinity GOD
God gives to see who wants be with Him eternal in His eternal Kingdom.
swear.
guess you could call the universe god if you want. But do not mistake the universe as being self aware and having intent.
are infinite, the universe and human stupidity, and I'm not sure about the former" - A.Einstein
own beliefs, You have your own. But I'm sure they appreciate what you've said.
aren't you already describing god? "always has been"?
universe itself. Nothing created the universe because it has always been. I do not view the universe as having intent or being able to answer prayers as the god in religion is described. My 'god' (the universe) is natural, not supernatural as in the bible or any other book.
universe?
and then reappearing somehow. that's mythical and supernatural in itself.
we're in a state of illusion and the reality is beyond passed the edges of even what is further passed the universe, if there is an edge. if god is there, he'd function freely as he wishes. and the only way we could ever understand it is if he allowed us to. i think most religions try to approac
h this and are someway asking this god to let them understand.
the first one. I believe the universe works in cycles, there's a big bang then a big crunch then a big bang etc. and this has happened an infinite number of times. They say that religion makes you humble, well what I believe has humbled me more than religion ever did. And yes, I was brought up i
n a christian family.
all we have are numbers. everything else is theory. string theory, theory of relativity, etc. there may have been other big bangs that created other universes, so we might also have a "multi-verse". and its widely been accepted that the universe will eventually spread until there are no galax
ies to sustain life.
of that multi-verse?
him. i'm not making a claim for religions. just saying that there's no logical reason to exclude a "god". now if you believe that there is the universe and that's it and you've chosen to conform yourself with the universe being eternal, what difference is it from someone who's conformed themsel
ves with an eternal god who's created everything?
more uni- or multi-verses
The difference is that the universe has no intent and did not create us for any specific purpose and did not send a messiah to Earth to absolve our sins.
in our universe before that event.
supports this theory. If that really is the case then time did exist before the big bang.