What are space and time?
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From: Pat Flannery on 8 Jul 2010 14:25 On 7/8/2010 6:55 AM, John Stafford wrote: > That goofy librarian could have rummaged about the earth for another > pair of glasses, but that would be a sequel and they didn't do them then. You probably don't have really bad vision like I do (and his glasses made his look far worse than mine in that episode) I've spent half an hour looking around the inside of my apartment for my misplaced glasses before I could locate which particular blur was them. :-) > Back to the subject: What is a light year? I think it is a year that has > more taste, is less filling. I'd say a light year was 1752, when 11 days were dropped from the year to get the calender back into adjustment with the sky: http://www.cslib.org/CalendarChange.htm Pat
From: Androcles on 8 Jul 2010 15:44 "John Stafford" <nhoj(a)droffats.net> wrote in message news:urOdnSPbFcl0Z6jRnZ2dnUVZ_s-dnZ2d(a)supernews.com... | In article <6NlZn.103683$We4.41427(a)hurricane>, | "Androcles" <Headmaster(a)Hogwarts.physics_z> wrote: | | > "John Stafford" <nhoj(a)droffats.net> wrote in message | > news:89KdnbrTYeRge6jRnZ2dnUVZ_ridnZ2d(a)supernews.com... | > | In article | > | <icydnd_xBbsKT6jRnZ2dnUVZ_tidnZ2d(a)posted.northdakotatelephone>, | > | Pat Flannery <flanner(a)daktel.com> wrote: | > | | > | > On 7/8/2010 3:48 AM, bert wrote: | > | > > Sam Einstein has "time" more important than space. He gave it a | > | > > dimension. | > | > | > | > A dimension of sight and sound? | > | > Where you are the last man on Earth, and you've broken your glasses? ;-) | > | > | > | > Pat | > | | > | That goofy librarian could have rummaged about the earth for another | > | pair of glasses, but that would be a sequel and they didn't do them then. | > | | > | Back to the subject: What is a light year? I think it is a year that has | > | more taste, is less filling. | > | | > Phooey - A light beer has less taste and is more filling. | | So the presidents of Guinness, Budweiser and Pabst go to lunch together. | The waiter asks for drink orders, and the Bud boy says, "I'll have a | Budweiser, and naturally the Pabst person orders a Pabst. "And what will | you have, Sir", the waiter asks the Guinness guy, who replies, "Just | water, please." | | "What?!" the other two exclaim, "Aren't you going to have a drink?" | | Guinness guy answer, "Well, if you chaps aren't going to drink beer, | then neither will I." | Sounds like Stephen Hawking, he turned down a beer when it was MY shout. No sane Englishman would ever commit such a sin. Perhaps it was the thought of falling into the black hole of a pint of Theakston's Olde Peculier that upset him. http://www.theakstons.co.uk/
From: Pat Flannery on 8 Jul 2010 21:23 On 7/8/2010 8:20 AM, John Stafford wrote: > So the presidents of Guinness, Budweiser and Pabst go to lunch together. > The waiter asks for drink orders, and the Bud boy says, "I'll have a > Budweiser, and naturally the Pabst person orders a Pabst. "And what will > you have, Sir", the waiter asks the Guinness guy, who replies, "Just > water, please." > > "What?!" the other two exclaim, "Aren't you going to have a drink?" > > Guinness guy answer, "Well, if you chaps aren't going to drink beer, > then neither will I." Shar, and if that not be the truth of the matter too. Pat
From: Sam Wormley on 8 Jul 2010 18:33 On 7/8/10 6:48 AM, bert wrote: > On Jul 8, 12:10 am, Sam Wormley<sworml...(a)gmail.com> wrote: >> On 7/7/10 9:40 PM, Immortalist wrote: >> >>> What sort of things are they if they are things? >> >> Some Background >> http://en.wikipedia.org/wiki/Spacetime >> >> "The concept of spacetime combines space and time to a single abstract >> "space", for which a unified coordinate system is chosen. Typically >> three spatial dimensions (length, width, height), and one temporal >> dimension (time) are required. Dimensions are independent components of >> a coordinate grid needed to locate a point in a certain defined "space". > > Sam Einstein has "time" more important than space. He gave it a > dimension. Without time you can not be at a given place to meet. > Without time how could we measure the size an age of the universe? > TreBert I'm surprised you don't have a theory that gives each of the four dimensions equality--none being more important than any other and yet all as one entity--Spacetime.
From: Sam Wormley on 8 Jul 2010 19:16
On 7/8/10 12:26 AM, Michael C wrote: > Also, if a moment in time is a configuration of the universe, then it > seems that traveling "back to" a certain moment in time is a little > more possible in theory. We are part of the universe--we can't step outside of it and go where we choose as if we where "above it all". |