Re: If the universe is shaped like a cone why does the sky look round?
From: Wayne Shanks (wshanks_at_charm.net.nospam)
Date: 04/21/04
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Date: Wed, 21 Apr 2004 00:50:12 -0500
Wayne Shanks wrote:
> Wayne Shanks wrote:
>
>> Lisa Horton wrote:
>>
>>> Wouldn't the stars be concentrated more in certain areas of the sky?
>>>
>>> http://www.newscientist.com/news/news.jsp?id=ns99994879
>>
>>
>> The cone of the model is a 4D cone. The cone depicted in the atricle
>> is that of a 2D universe.
>>
>> The interesting point is that at the narrow end of the cone, one of
>> our spatial dimention is curled up just like the extra dimentions in
>> sting theory..
>>
>> Does the mean that space in that region is 2D not 3D?
>>
>> The question them becomes... is there a point in the universe where
>> one or more of the curled up higher dimention of string theory "unwind".
>>
>> Perhaps the ovservable univers is just a small rejion on a 11+1 D
>> Picard topology, where all spatial dimentions but 3 are coiled up.
>>
>> physics at lower and higher dimention might be very interesting.
>>
>> Wayne Shanks
>
>
>
> HMMMM this is interesting..
>
> Consider an electron fired down the narrow end of such a Picard topology.
>
> At some point he diameter of the universe in the curled up dimension
> will be of the same order as the electron wave packet. As the geometry
> shrinks further you should get stationary states of the electron in the
> curled up dimension. Electrons fired down the Picard topology neck with
> different amounts of momentum in the curled up dimension will look like
> different particles. (well different excited states at least).
>
> I pretend to know little to nothing about sting (M) theory, but I would
> love to hear a "brane-y" guy comment on string modes being higher
> dimensional momentum confined to coiled up dimensions.
>
> Wayne Shanks (Pitiful Experimentalist… slightly lower than Pitiful Human)
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