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Author Topic:   Age of the Universe
Agobot
Member (Idle past 5551 days)
Posts: 786
Joined: 12-16-2007


Message 1 of 6 (443008)
12-23-2007 12:48 PM


Is there any scientific explanation or theory on the movement of planets and what causes it? What about the ever expanding universe? Since it's been expanding at the speed of light for 14.5 billion years, why aren't the forces driving this expansion diminishing? Has any hypothesis been proposed by science?
Edited by Admin, : Change title to cover a narrow topic.

Replies to this message:
 Message 2 by AdminNosy, posted 12-23-2007 1:47 PM Agobot has not replied
 Message 4 by cavediver, posted 12-23-2007 2:00 PM Agobot has not replied

  
AdminNosy
Administrator
Posts: 4754
From: Vancouver, BC, Canada
Joined: 11-11-2003


Message 2 of 6 (443028)
12-23-2007 1:47 PM
Reply to: Message 1 by Agobot
12-23-2007 12:48 PM


you asked for it
I'll promote this but I'm afraid you are hopelessly out of your depth.
Your post is crammed full of errors of fact and utter confusion about what is involved in what. I'm just too lazy to try to help correct it so I will see if someone will have a go at trying to sort you out.
To others:
I would suggest you forget thinking you will help Agobot here. Just have fun trying to see if you can make a decent OP out of this.

This message is a reply to:
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AdminNosy
Administrator
Posts: 4754
From: Vancouver, BC, Canada
Joined: 11-11-2003


Message 3 of 6 (443029)
12-23-2007 1:47 PM


Thread moved here from the Proposed New Topics forum.

  
cavediver
Member (Idle past 3664 days)
Posts: 4129
From: UK
Joined: 06-16-2005


Message 4 of 6 (443034)
12-23-2007 2:00 PM
Reply to: Message 1 by Agobot
12-23-2007 12:48 PM


Is there any scientific explanation or theory on the movement of planets and what causes it?
Yes, gravitation, and this was essentially bashed out by Gallileo, Kepler and Newton, several hundred years ago.
What about the ever expanding universe?
Yes, gravitation - Einstein enhanced the Newtonian concept into The General Theory of Relativity, nearly 100 years ago, which predicted the Universal expansion, amongst many other things.
ince it's been expanding at the speed of light for 14.5 billion years, why aren't the forces driving this expansion diminishing?
It actually expands much faster than the speed of light - but that's ok because expansion is not limited in the way that velocity is.
The force driving the expansion can be split into two, and one component (the gravitational) is diminishing, in the sense that if it was the sole driver, the expansion would be slowing down. The other component (commonly called Dark Energy) is more complex and we're still investigating it to discover it's actual behaviour over time. The conventional picture of the Dark Energy is that it should be constant, but this does appear not to be the case.

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 Message 5 by tesla, posted 03-08-2008 3:31 PM cavediver has not replied

  
tesla
Member (Idle past 1614 days)
Posts: 1199
Joined: 12-22-2007


Message 5 of 6 (459557)
03-08-2008 3:31 PM
Reply to: Message 4 by cavediver
12-23-2007 2:00 PM


observational error probabilities
I've changed the topic of this thread to just be the age of the universe. Please address the other questions in other threads. --Admin
although i must confess that an outer expansion pulling apart and stretching a fabric in which bodies sit on thereby expanding is a decent theory sustainable by the math of relativity, I'm afraid i still see a blank spot on relativity and time as it is used.
how is it that there is a dating for the age of the universe? how accurate is it in reliable terms?
relativity:
we know the faster something moves that time becomes warped in its relativity to the stationary. but what is the true expansion within our view points?
lets see our galaxy, in which our solar system is revolving around something, and our planet also taking its revolutions, and the system the our solar system moves around is also moving within the great spiral of the apparent black whole in the center of the galaxy. now taking our own galaxy, we are either expanding in this galaxy, or falling back towards its center.
by observation of the spiral design, it is more apparent to me that we are indeed cycling back towards the center of the milky way, whilst other galaxies move in their directions.
if a car is driving 30 miles an hr, and a car passing the opposite way is traveling 30 miles an hour, there is an appearance of 60 miles an hr as it moves away.
has the calculations of our own greater bodies movement (and our solar systems smaller movement, and the earth rotation) been taken into account when measuring the expansion of other greater bodies?
Edited by Admin, : Add comment about topic.

keep your mind from this way of enquiry, for never will you show that not-being is
~parmenides

This message is a reply to:
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Replies to this message:
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Admin
Director
Posts: 13016
From: EvC Forum
Joined: 06-14-2002
Member Rating: 1.9


Message 6 of 6 (459566)
03-08-2008 4:08 PM
Reply to: Message 5 by tesla
03-08-2008 3:31 PM


Re: observational error probabilities
This thread is trying to cover too broad a range of topics. Since it's been dormant of late, I'll change the title to cover just the age of the universe.
Please find another thread to ask your questions about expansion. If necessary propose a new thread over at [forum=-25].

--Percy
EvC Forum Director

This message is a reply to:
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