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In 180 years...

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Old Nov 28, 2007 | 11:40 AM
  #31  
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Originally Posted by sahtt,Nov 28 2007, 12:28 PM
Taking a few college level astronomy classes can be some of the most fulfilling learning you do in your life span. I was an economics and mandarin chinese major but almost had a minor in astronomy simply because I enjoyed the knowledge I obtained so much.

We already have the capacity to see events that took place roughly 10-11 billion years ago.

Here's a good one that takes some reading to fully understand-space is expanding in all directions relative to any point in existence.

The human conception of time and gravity is centered upon our experiences in our little blubble called earth. In the most accurate sense, "time" doesn't really exist in terms of our definition. The last class I took was an advanced class on quasars and black holes. I learned more truly interesting and profound information in my astronomy classes than I did in all my economics and chinese classes combined.
ughhhh


i was gonna go to San Diego State University to become an astronomer

that was one of my all time dreams along with becoming a philospher and studying guys like Ghandi, who i last heard was discovered to have started to explore the idea of time travel

i belive it was Eistein who said a twin brother would age faster on Earth than the other in outter space

time is by far the craziest factor....it is against us
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Old Nov 28, 2007 | 11:44 AM
  #32  
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Originally Posted by sahtt,Nov 28 2007, 01:28 PM
Taking a few college level astronomy classes can be some of the most fulfilling learning you do in your life span. I was an economics and mandarin chinese major but almost had a minor in astronomy simply because I enjoyed the knowledge I obtained so much.

We already have the capacity to see events that took place roughly 10-11 billion years ago.

Here's a good one that takes some reading to fully understand-space is expanding in all directions relative to any point in existence.

The human conception of time and gravity is centered upon our experiences in our little blubble called earth. In the most accurate sense, "time" doesn't really exist in terms of our definition. The last class I took was an advanced class on quasars and black holes. I learned more truly interesting and profound information in my astronomy classes than I did in all my economics and chinese classes combined.
Come on over and look through my scope some clear night. It'll blow your mind.
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Old Nov 28, 2007 | 11:45 AM
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Originally Posted by PalenkosBro,Nov 28 2007, 12:20 PM
when my brother came back from Kuwait, he told me that there are so many things he learned that we as civilians don't know.....the gov't has its' secrets
Care to elaborate on those.
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Old Nov 28, 2007 | 11:46 AM
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So.. I'm guessing that didn't pan out? Did you get a chance to learn at least some of what you wanted to?

The concept of time that we have on earth is due to our gravity. It's not the matter of going in to outer space that reduces aging, it's the matter of being removed from strong gravitational forces. IMO, as well as good ol' alberts, there is no such thing as the force of gravity, it's just how mass distorts space-time.

What you are refering to is the fact that if you go in to outer space and orbit the earth, you are slightly younger once you return than if you had stayed on earth during the same time span. This is easily proven using atomic watches/clocks in any orbiting space craft. Totally off the top of my head, I believe if you orbit the earth at the smallest radius possible while staying out of the atmosphere you are approximately 7 days younger per year. Very interesting subject.
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Old Nov 28, 2007 | 11:50 AM
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Originally Posted by magician,Nov 28 2007, 09:07 AM
You're only referring to animals. There are many plants - trees, specifically - that have been alive for much longer than 175 years.
verrrry tru....i was just babbling on making this thread as fast as possible


but trees are a prime example of amazing "being"

they practically "die" off in the winter and then come back in the upcoming seasons

and Redwoods are yet another wonder that I've yet to grasp the concept on.


REBELS2K, I too believe space is continually expanding, but I've never heard the theory on it reversing......very interesting

I was aware of the definition of black holes but i wish we, as the human race, knew what was really out there


the movie "Contact" really moved me when I had first watched it
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Old Nov 28, 2007 | 11:51 AM
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Originally Posted by The Raptor,Nov 28 2007, 12:44 PM
Come on over and look through my scope some clear night. It'll blow your mind.
Besides doing a few projects/assignments, my experience in actual 'star gazing' is fairly limited due to the fact both my residences are in bigger cities. I never had the time to drive an hour out side of town to reduce the light pollution. When hunting in mexico however I could easilly tell what direction I was looking not only by the stars but by the lights emmitted from the only cities that were hunderds of miles away. The terrain is so flat and the light/smog pollution so minimal you can see an immense amount of stars etc.
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Old Nov 28, 2007 | 11:51 AM
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Originally Posted by S2020,Nov 28 2007, 02:11 PM
actually, alot of the "stars" we see at night are galaxies. they're just so far away that we see dot instead of form.
If you mean "one" by "alot" then yes, you're correct. In the southern hemisphere, you might be able to see the Small and Large Magellanic Clouds. In the northern hemisphere, you might be able to see Andromeda Galaxy, which actually shows up as a bit of a smudge. Only the actual core of the galaxy is bright enough to see - if you could make out the entire galaxy, it would take of six times the amount of space in the sky that the Moon does.

http://www.iolaks.com/softech/astro/astro2.htm says there might actually be three more galaxies you can see with your naked eye if your eyes are good enough.

Here's a comparison of the visual size of the Moon and Andromeda. Obvicously the brightness levels have been tweaked.

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Old Nov 28, 2007 | 11:53 AM
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Originally Posted by The Raptor,Nov 28 2007, 09:27 AM
My telescope can see millions of things beyond the solar system. They're called deep sky objects.
beautiful....
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Old Nov 28, 2007 | 11:54 AM
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black holes are actually fairly simplistic 'things'. It's just a mass in which it's gravitational "pull" or coordinating space-time curves are so powerful that light cannot escape. Besides the singularity concept and a couple other details the difference between a neutron star or even a run of the mill dead white dwarf star isn't too great.
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Old Nov 28, 2007 | 12:01 PM
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Originally Posted by Elistan,Nov 28 2007, 01:51 PM
In the northern hemisphere, you might be able to see Andromeda Galaxy, which actually shows up as a bit of a smudge. Only the actual core of the galaxy is bright enough to see - if you could make out the entire galaxy, it would take of six times the amount of space in the sky that the Moon does.

Here's a comparison of the visual size of the Moon and Andromeda. Obvicously the brightness levels have been tweaked.
That's why a time exposure with a very wide field of view is required to image the Andromeda Galaxy. It's the most distant deep sky object visible to the naked eye.
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