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Topic: the world is my spaceship
purplecat's photo
Tue 05/08/07 04:25 PM
wow

ok well I was readin about it and it has gravity ,and it is not visible
,, its got somethin to do with somethin obviously ,
but they mention the " big bang " , ( and of course we are all going
out ward from that ) but it mentions how it might end in the " big
crunch " ,,we continue going outward until the process reverses itself (
in theory ) and then we compress into the crunch ,, they figure we are
still going outward

um what if we are already in the reverse process and heading back inward
what happens next ??

noway

somebody please tell me....glasses

uk1971's photo
Tue 05/08/07 04:27 PM
Well looks like that dream won't come true now.ohwell glasses

NomDiPlume's photo
Tue 05/08/07 04:35 PM
We actually can experimentally confirm that the universe is still
expanding. Modern telescopic tech is adequate to view distant universes
and, through paralax, to compute the speed at which they are receeding
from us. Interestingly, the speed at which distant galaxies recede is
directly proportional to their distance from us. The only mathematical
explanation that makes sense for this pattern (that has been offered so
far) is universal expansion. Imagine a bunch of pennies taped to the
surface of a balloon. As the baloon expands, the pennies are pushed
farther apart. Also, due to the mathematics of curvature, pennies which
are further apart experience greater curvature, and therefore move away
from each other faster.

With general relativity (as a refinement of special relativity) Einstein
demonstrated that space can be curved, which carries on into the best
understanding of both gravity and cosmic expansion yet offered.

As far as dark matter goes, I must admit that I'm not up with the
cutting edge. So far as I know, dark matter was first discovered
because it does not emit light, but can block light. In other words,
dark matter was first discovered not by direct observation but rather by
the way in which it obscured distant stars. Since then there have been
experiments which theoretically demonstrate (through paralax) that light
is bent when passing near to dark matter, which would indeed indicate
mass. I don't believe dark matter has ever yet been directly observed.
The totally (?) non-emittive nature of dark matter is very interesting,
since it is almost unheard of in nature. Some speculate a correlation
between DM and black holes. I'd love to hear more recent news on this
front if anyone has any ...

Uh, yeah, maybe I should shut up for a while?

NomDiPlume's photo
Tue 05/08/07 04:44 PM
Oh - and the "big crunch" is still fairly theoretical, but it goes like
this. About 25 years ago scientists were able to first predict and then
experimentally verify a level of universal background radiation which
would have been caused by any Big Bang event and which would not yet
have had enough half-lives to dissapear completely. In fact, it was
predicted and verified to an incredible degree of precision. This was
when Big Bang became the default origin theory.

The Big Crunch, also sometimes called Cold Death, theorizes (rather
logically) that energy-based expansion cannot be an infinite reaction.
Accordingly, the universe continues to expand, but not to create new
matter, and thereby contains less matter for a given area all the time.
This process would cause the universe to gradually lose heat and energy
until the energy driving the cosmic expansion was exhausted. At this
point the universe would begin to cool, which would in turn slow
particle movement, which would result in condensation and, eventually,
maybe, a big crunch.

What happens then? Beats me. Big bang, maybe? Regardless, all life in
the universe is likely to be frozen to death long previous, and our sun
is going to go supernova far sooner, so I wouldn't worry about it.

purplecat's photo
Tue 05/08/07 04:44 PM
OH IF YOU HEAR OF A N Y NEW FININGS ON THE TOPIC I WANT TO BE THE
FIRST TO KNOW ,, I WANT TO BE THE ONE THAT FIGURES OUT WHAT THAT STUFF
IS ,,
happy I THINK IT HAS A REACTIVE NATURE YA BLACH HOLES HAVE IT I THINK
SOME 90 PERCENT OF SPACE IS MADE UP OF IT OR SOMTHIN LIKE THAT , SOME
WEIRD INVERTED PROCESS IN WICH MATTER IS OF A DIFFERENT STATE ...

hmmmglasses

no photo
Tue 05/08/07 04:58 PM
OMG (((((((((((CAT)))))))))))))) I walked into the WRONG classroom.. I
thought this was HISTORY sad






bigsmile

whispertoascream's photo
Tue 05/08/07 05:05 PM
I want to go to the moon! I just want to float happy

no photo
Tue 05/08/07 05:09 PM
send him to Minnesota pweas
<------------------

purplecat's photo
Fri 05/11/07 02:07 AM
}}}}}}}}}}ZOOOOOOOOOOOOOOOOOOOOOOOMMMMMMM{{{{{{{{{{{{{{


happy
laugh
glasses
happy bigsmile

purplecat's photo
Fri 05/11/07 02:10 AM
oh theres those crickets again ,I guess the cooler space ship was
already here and they all left without me..noway

LAMom's photo
Fri 05/11/07 02:22 AM
laugh (( Purple)))) Noppers sweetie yours is the coolest,,, I want
to go to Texa and Visit Ms Txs and Bucket,, or course after you and I
have lunch and hang out for awhile happy

twosteper's photo
Fri 05/11/07 03:17 AM
i need to take time n read this

<<< n this is a perfect place to do it


laugh laugh laugh laugh


party on...drinker drinker drinker drinker

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