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Space isn't a vacuum if that helps. So maybe at the edge of space there is a proper vacuum, or maybe there is nothing, as in, no reality. You couldn't go there, because there is nothing there. Same as asking what comes after the edge of your computer screen.
🙂 Beautiful.
We naturally expect a piece of paper to have two sides. But a Möbius strip demonstrates that isn't always the case - it only has one side, because the plane is twisted through another dimension.
So (and here I'm inviting sighs and 'what are you, a numpty?' comments) the point of the möbius strip and klein bottle is to emphasise how such concepts as direction, edges and boundaries can become blurred/meaningless?
And, therefore, that while the universe may not be infinite it might have no edges?
** Baby steps being taken here **
Big Bang
😆
We don't know.
The expansion of the universe is not an outward expansion it is the growing of distance between objects in the universe over time.
Therefore it does not have to expand into anything other than its self. Thats if it is expanding, which might not be the case, it may just look like it is and actually be smaller that it measures.
Big Bang
😆
🙄 Feel free to offer your own competing theory dd.
It's the best model we have so far in our limited understanding.
It's the best model we have so far in our limited understanding.
😆
So some things in the universe are small and some are far away [i]at the same time[/i]?
Obviously dd, some people's understanding is more limited than others. 😉
I know G! There's no need to feel bad about it mate. 😉
I don't.
I will always have that faint hope that one day you might read a book 😛
the universe expands from all points, everything gets further away from everthing else, its the 3d equivalent of the 2d surface of a ballon being inflated. Draw a face on a balloon then blow it up and the features expand away from each other. Because of this the big bang occurred not just in the distant "edge" of space but everywhere in the universe is the point of the big bang. Physicists just try to observe the BB at great distances as the further you look the more back in time it is, nothing to do with the big bang being far away.
The surface of the balloon theory like the mobius strip is an aid to understanding the no edge theory of 3d space too, as this is beyond human comprehesion unfortunately, well mine anyway.
Interesting replies all.
I had this down as a philosophy question, but the beard strokers have been clearly outnumbered by the physics guys...
** determines to print thread off and digest, whilst stroking beard earnestly ••
Is the Klein bottle really a bottle? Can it hold anything? If the inside and the outside are all linked then won't stuff just fall out?
Is the Klein bottle really a bottle? Can it hold anything? If the inside and the outside are all linked then won't stuff just fall out?
Have a look at it, there's plenty of pictures here already. It's pretty obvious you can hold stuff "in" it, and maybe even drink out of it. A straw would help though.
I assumed it held aftershave. 😀
...an infinite amount of aftershave?
😯
http://www.kleinbottle.com/drinking_mug_klein_bottle.htm
http://blog.blazingangles.net/whatsthis/2007/08/never-spill-your-drink-again.html
I expect to purchase a Klein Bottle one day, primarily because I want to be able to accidentally spill my drink right onto the table outside of the Klein Bottle drinking glass, expecting the drink to appear inside of the glass nonetheless. I'm just hoping that the zero-volume property won't prevent me from drinking from the glass which, by definition, will always be empty.
I almost bought one the other day, purely because they are awesomely nerdy.
.then what's on the other side?
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