mick Posted February 20, 2007 Share Posted February 20, 2007 I was thinking that the universe may actually be very, very SMALL RATHER than very immense. Of course, out of sheer logical ramification, we are then really, really, really, small. (Like wicked small) Link to comment Share on other sites More sharing options...
Callyn Posted February 21, 2007 Share Posted February 21, 2007 Well, we don't really know what big and small are except in comparison to ourselves. So to our senses, the universe is fucking huge. Link to comment Share on other sites More sharing options...
Fweethawt Posted February 21, 2007 Share Posted February 21, 2007 I think that we're just really small in a really really big sort of way. And, as far as the Universe is concerned, there is no up or down. Fancy that... Link to comment Share on other sites More sharing options...
Callyn Posted February 21, 2007 Share Posted February 21, 2007 Makes sense to me. The only reasons there's an up or down on Earth is gravity and a bottom. If there weren't a force pulling you towards a boundary, what would define up? What would define down? Link to comment Share on other sites More sharing options...
Ouroboros Posted February 21, 2007 Share Posted February 21, 2007 I guess up and down is defined when it comes to quarks, but not to the universe. Go figure... Link to comment Share on other sites More sharing options...
Vigile Posted February 22, 2007 Share Posted February 22, 2007 I was thinking that the universe may actually be very, very SMALL RATHER than very immense. Of course, out of sheer logical ramification, we are then really, really, really, small. (Like wicked small) In this context you are dealing with relativity. What is small? Compared to what? A giant kingdom that lives outside the universe? Link to comment Share on other sites More sharing options...
StewartP Posted February 22, 2007 Share Posted February 22, 2007 Makes sense to me. The only reasons there's an up or down on Earth is gravity and a bottom. If there weren't a force pulling you towards a boundary, what would define up? What would define down? But why do we use the convention of North being "up"? It's probably historical, in that cartography as we know it is Western/European. It's always a shock when you see maps that are printed upside down. Link to comment Share on other sites More sharing options...
Callyn Posted February 22, 2007 Share Posted February 22, 2007 I guess up and down is defined when it comes to quarks, but not to the universe. Go figure... It's probably just a convenient lable for the spin. But there are forces involved that could help define it. I'm not that well informed about quantum mechanics, so I'm really not sure. Makes sense to me. The only reasons there's an up or down on Earth is gravity and a bottom. If there weren't a force pulling you towards a boundary, what would define up? What would define down? But why do we use the convention of North being "up"? It's probably historical, in that cartography as we know it is Western/European. It's always a shock when you see maps that are printed upside down. Basically. Tradition is hard to get rid of, as miles and feet show. Link to comment Share on other sites More sharing options...
Ouroboros Posted February 22, 2007 Share Posted February 22, 2007 I guess up and down is defined when it comes to quarks, but not to the universe. Go figure... It's probably just a convenient lable for the spin. But there are forces involved that could help define it. I'm not that well informed about quantum mechanics, so I'm really not sure. I know, it was more of a joke. But it's funny that quarks know what we don't. Hehe. Link to comment Share on other sites More sharing options...
neverclear5 Posted March 5, 2007 Share Posted March 5, 2007 It's probably just a convenient lable for the spin. But there are forces involved that could help define it. I'm not that well informed about quantum mechanics, so I'm really not sure. Yes. Up and down spin arn't really up or down.....or spins. Same as colour charges arn't really colours and flavour types arn't really flavours. Needless to say, particle physics students tend to hate all past particle physicists! Link to comment Share on other sites More sharing options...
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