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paul valletta: on 9/2/07 at 9:20am UTC, wrote Is there really nothing there? If nothing equals zero, absolute nought or...

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FQXi BLOGS
May 26, 2019

CATEGORY: Blog [back]
TOPIC: Peering Into the Void [refresh]
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Blogger William Orem wrote on Sep. 1, 2007 @ 15:40 GMT


By now you've probably heard about the hole in the universe, but it's an interesting enough discovery to bear repeating. Larry Rudnick, a University of Minnesota astronomy professor, is reporting in Astrophysical Journal that his team has fortuitously come across a cosmic void a billion light years wide(!), some thousand times larger than any that should exist based on our current...

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bob wrote on Sep. 1, 2007 @ 21:14 GMT
the void, the axis of evil, and the new findings about the seemingly fundamental nature of helical structure all seem to promise more to come about the large-scale structure of the universe. Exciting stuff

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paul valletta wrote on Sep. 2, 2007 @ 09:20 GMT
Is there really nothing there?

If nothing equals zero, absolute nought or void, then how does one detect this?

The detection impliment must have a baring on what is and what "is'nt".

How do you actually detect something that, by the concept of "nothing", is deemed to be undetectable?

I think there is something, but it may, by its very nature be a very very weak "something"?

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Steve wrote on Sep. 4, 2007 @ 08:49 GMT
...but does it have a twin?

Symmetry is not genuinely expected - yet it would be interesting to check to see if there is a similar "voidic structure" on the "opposite" side.

Either a "yes" or "no" outcome of a search would be very interesting.

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tty wrote on Sep. 5, 2007 @ 14:42 GMT
I wonder what it means when one says void of such size should not existed according to theories. In fact one should say the probability of it is very small, since our theory can only give a probability distribution of void sizes. All sizes are possible.

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