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Author Topic:   Creation cosmology and the Big Bang
nwr
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Posts: 6419
From: Geneva, Illinois
Joined: 08-08-2005
Member Rating: 5.5


(2)
Message 10 of 305 (663526)
05-25-2012 9:07 AM
Reply to: Message 5 by Admin
05-25-2012 6:06 AM


Admin writes:
It's regrettable that people jeer a post still in the promotion process instead of waiting for promotion.
Maybe they are commenting on whether they think the topic is worthy of promotion in its current form.

Jesus was a liberal hippie

This message is a reply to:
 Message 5 by Admin, posted 05-25-2012 6:06 AM Admin has seen this message but not replied

  
nwr
Member
Posts: 6419
From: Geneva, Illinois
Joined: 08-08-2005
Member Rating: 5.5


(2)
Message 12 of 305 (663533)
05-25-2012 9:43 AM
Reply to: Message 4 by zaius137
05-25-2012 1:52 AM


zaius137 writes:
The invention of dark energy and dark matter relies on human imagination.
My comment will be about "invention" as used in science. I'll go with the term "invention" and not worry about whether it is the appropriate term.
Newton "invented" a force of gravitational attraction. He was criticized for that (for introducing occult forces) by others, including Descartes. Nevertheless, it was a very useful idea and was one of the basic principles of Newtonian science. It has technically been replaced by GR (general relativity), which invented curvature of space to replace that gravitational force. However Newton's law of gravity is still widely used and is still useful.
Dalton "invented" the atom to account for the combinatorial properties observed in chemical reactions. This has since been superseded by a different conception of the atom, but the basic idea of the Dalton atom was an important part of classical physics and chemistry.
Mendel "invented" the gene, based only on combinatorial properties of observed inheritance. It has turned out to be the backbone of modern biology.
My point: inventing entities to account for evidence has been an important part of science. Sometimes the inventions work out, and sometimes they have to be later changed. But the fact that there appears to be some invention should not by itself be a reason for concern. The very names "dark matter" and "dark energy" already indicate that there is uncertainty about them.

Jesus was a liberal hippie

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nwr
Member
Posts: 6419
From: Geneva, Illinois
Joined: 08-08-2005
Member Rating: 5.5


(1)
Message 25 of 305 (663642)
05-25-2012 6:47 PM
Reply to: Message 23 by Dogmafood
05-25-2012 6:15 PM


Dogmafood writes:
From what I can tell, you need at least 3 dimensions to have a surface that is not flat.
Just as you can have a 2-dimensional sphere (just the surface) in 3-space, you can have a 3-dimensional sphere in 4-space, and a 4-dimensional space-time as a surface in some higher dimensional space.

Jesus was a liberal hippie

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Replies to this message:
 Message 26 by NoNukes, posted 05-25-2012 9:46 PM nwr has replied

  
nwr
Member
Posts: 6419
From: Geneva, Illinois
Joined: 08-08-2005
Member Rating: 5.5


Message 27 of 305 (663661)
05-25-2012 10:34 PM
Reply to: Message 26 by NoNukes
05-25-2012 9:46 PM


Yes, but people who are not familiar with the mathematics have difficulty conceptualizing unless it is embedded in a higher dimensional space.

Jesus was a liberal hippie

This message is a reply to:
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Replies to this message:
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