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Reply #22: I see, so that 2D grid can be tipped any which way depending on the object... [View All]

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no limit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Aug-12-10 10:24 AM
Response to Reply #19
22. I see, so that 2D grid can be tipped any which way depending on the object...
Edited on Thu Aug-12-10 10:25 AM by no limit
...that is traveling on that grid? So really there could be millions of different grids if you have millions of different objects? Do I understand that correctly?

I really do appreciate you trying to explain this to me, hopefully it's not a fruitless effort :). I did read such books as why e=mc2 and why we should care as well as watched many documentaries on this but the explaination of gravity I always seem to run in to (the way I understand it) is that it's in a sense flat, which I'm sure is wrong and I think you clarified that for me a bit assuming I'm understanding you correctly.
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  -Ok this is probably dumb, but can someone explain a flat universe to me? no limit  Aug-11-10 08:35 PM   #0 
  - I can't pretend to understand astrophysics...  JTG of the PRB   Aug-11-10 08:42 PM   #1 
  - If the universe is not flat, then it will eventuall intersect.  RandomThoughts   Aug-11-10 08:44 PM   #2 
  - but lets assume the universe is flat since what we've seen from experiments  no limit   Aug-11-10 08:55 PM   #4 
  - Gravity is an effect within a section of space time  RandomThoughts   Aug-11-10 09:14 PM   #12 
     - My questions are probably really dumb and my apologies for that, I just want to understand this.  no limit   Aug-11-10 09:23 PM   #13 
        - Gravity radiates out in all directions from a mass  Rabrrrrrr   Aug-11-10 09:31 PM   #14 
           - I had to think about it for a bit but I think that makes sense (kind of)  no limit   Aug-11-10 09:51 PM   #15 
              - See my other post below explaining the difference between a flat universe and a planar one.  Rabrrrrrr   Aug-11-10 10:18 PM   #16 
                 - Thank you for your patience, I appreciate the explaination.  no limit   Aug-12-10 10:22 AM   #21 
                    - Things tend to orbit in near-identical planes because of the spin of the thing being orbited.  Rabrrrrrr   Aug-12-10 11:21 AM   #28 
  - No, both an open universe and a flat universe will expand forever.  Twillig   Aug-11-10 09:00 PM   #8 
  - Why don't you post the question in the science forum?  Xipe Totec   Aug-11-10 08:55 PM   #3 
  - We have a science forum? My bad.  no limit   Aug-11-10 08:55 PM   #5 
  - ...  Xipe Totec   Aug-11-10 08:57 PM   #7 
  - posted reply to wrong thread - deleted. nt  Xipe Totec   Aug-11-10 08:57 PM   #6 
  - It's flat in the sense that it isn't curved, not flat in the sense of being planar.  Rabrrrrrr   Aug-11-10 09:05 PM   #9 
  - ^^ This is a very good answer.  uncommon   Aug-12-10 10:34 AM   #25 
  - There's a pretty good article on wiki  pokerfan   Aug-11-10 09:07 PM   #10 
  - So you are saying we are all repubs and see the the world one dimensionally??  madinmaryland   Aug-11-10 09:10 PM   #11 
     - Conservatives deny Relativity  pokerfan   Aug-11-10 10:50 PM   #17 
  - If you haven't read "Flatland", do so.  HopeHoops   Aug-12-10 04:30 AM   #18 
  - I second the rec to read Flatland.  dixiegrrrrl   Aug-12-10 09:42 AM   #20 
  - Thanks, I read the first 7 chapters this morning and do plan on finishing it later  no limit   Aug-12-10 10:27 AM   #23 
  - The picture you're looking at mixes what we think of as 3-D space...  Orsino   Aug-12-10 08:19 AM   #19 
  - I see, so that 2D grid can be tipped any which way depending on the object...  no limit   Aug-12-10 10:24 AM   #22 
     - Yeah, that's it.  Orsino   Aug-12-10 10:51 AM   #27 
  - From NASA  mcollins   Aug-12-10 10:29 AM   #24 
  - It's my understanding it's balanced on the backs of four elephants  spinbaby   Aug-12-10 10:36 AM   #26 
  - It's when someone leaves the cap off the universe ...  Deep13   Aug-12-10 11:27 AM   #29 
  - Well for one thing,  mysuzuki2   Aug-12-10 07:27 PM   #30 
  - I submit it's very important to remember one thing about gravity:  Dr Morbius   Aug-12-10 08:08 PM   #31 
  - I can explain a key feature of a flat universe  Generic Brad   Aug-12-10 09:41 PM   #32 
 

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