Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]() "Cecil Moore" wrote in message et... Dave Oldridge wrote: Cecil Moore wrote in news:aqfuh.4372$O02.4066 *Only* within the frame of reference where the second was defined which didn't exist for the first 2/3 of the history of the universe. Actually, the second is defined as a certain exact number of oscillations of a cesium atom in the same reference frame as the observer. The same problem still exists. The cesium atom didn't exist before the first super nova. How can the time be calculated between the Big Bang and the first super nova if cesium didn't exist? -- 73, Cecil, http://www.qsl.net/w5dxp Units of measurement are totally arbitrary, what they are measuring isnt. It is irrelevant how long a second is as long as everyone agrees. Time has nothing to do with the existance of cesium. The origonal basis for the second was the roatation of the earth but that is not constant so it was redefined I believe in the 60s, seems like I remember hearing about it in HS. |
#2
![]() |
|||
|
|||
![]()
Jimmie D wrote:
... Units of measurement are totally arbitrary, what they are measuring isnt. It is irrelevant how long a second is as long as everyone agrees. Time has nothing to do with the existance of cesium. The origonal basis for the second was the roatation of the earth but that is not constant so it was redefined I believe in the 60s, seems like I remember hearing about it in HS. Jimmie: There is much common sense in what you state. However, I see us at a point where no more real advances in knowledge can be made until we do have an understanding of what these arbitrary units ARE measuring--at present, all we really understand are our units ... Regards, JS |
#3
![]() |
|||
|
|||
![]() "John Smith I" wrote in message ... Jimmie D wrote: ... Units of measurement are totally arbitrary, what they are measuring isnt. It is irrelevant how long a second is as long as everyone agrees. Time has nothing to do with the existance of cesium. The origonal basis for the second was the roatation of the earth but that is not constant so it was redefined I believe in the 60s, seems like I remember hearing about it in HS. Jimmie: There is much common sense in what you state. However, I see us at a point where no more real advances in knowledge can be made until we do have an understanding of what these arbitrary units ARE measuring--at present, all we really understand are our units ... Regards, JS There are a lot of things about the universe we really dont understand, time and gravity are just two. Our understanding of time is just a theory like gravity but so far all we think we know about it seems to work. I dont worry much about falling up when I get out of bed in the morning. Arguing about it is as fruitless as telling someone why an arbitrailly thrown together pile of metal isnt a breakthrough in antenna design. Where do you start?? Jimmie Jimmie |
#4
![]() |
|||
|
|||
![]()
Jimmie D wrote:
... There are a lot of things about the universe we really dont understand, time and gravity are just two. Our understanding of time is just a theory like gravity but so far all we think we know about it seems to work. I dont worry much about falling up when I get out of bed in the morning. Arguing about it is as fruitless as telling someone why an arbitrailly thrown together pile of metal isnt a breakthrough in antenna design. Where do you start?? Jimmie Jimmie Jimmie: Don't kill the messenger. I am at a loss to any REAL answers, as you are. But when you ask, "Where do you start?" Haven't we already started when at least we can describe the problem and starting talking and thinking about it? I don't even claim to be "smart enough" to solve all this (at least I am not that stupid grin), however, I would like to be standing next to the man who can ... if I can help him, I would! CERN now has the equipment to help ... Warmest regards, JS |
#5
![]() |
|||
|
|||
![]()
Jimmie D wrote:
Units of measurement are totally arbitrary, what they are measuring isnt. So a standard unit of measurement can change value daily in an unknown fashion and still yield non-arbirtary results? -- 73, Cecil, http://www.qsl.net/w5dxp |
#6
![]() |
|||
|
|||
![]() "Cecil Moore" wrote in message et... Jimmie D wrote: Units of measurement are totally arbitrary, what they are measuring isnt. So a standard unit of measurement can change value daily in an unknown fashion and still yield non-arbirtary results? -- 73, Cecil, http://www.qsl.net/w5dxp Theorectically yes, practically no. But this is just something you came up with and has nothing to do with what I said.. My total message was not so long that it needed to be snipped , it is obvious why you did. If you just want to argue and do so by taking what somone says out of context please put me on your kill file . |
#7
![]() |
|||
|
|||
![]()
Jimmie D wrote:
My total message was not so long that it needed to be snipped , it is obvious why you did. If you just want to argue and do so by taking what somone says out of context please put me on your kill file . It is obvious that honoring netnews guidelines requires snipping the part of the message to which I am not replying. Have you read the netnews guidelines? -- 73, Cecil http://www.w5dxp.com |
#8
![]() |
|||
|
|||
![]() Cecil Moore wrote: Jimmie D wrote: Units of measurement are totally arbitrary, what they are measuring isnt. So a standard unit of measurement can change value daily in an unknown fashion and still yield non-arbirtary results? You'd have to be able to demonstrate that relativistic effects single out particular units of measurement to the exclusion of others without having an effect on the observed phenomena and all within the same reference frame before being able to substantiate any claim that the result of a particular measurement is arbitrary. Can you demonstrate that? jk |
#9
![]() |
|||
|
|||
![]()
Jim Kelley wrote:
You'd have to be able to demonstrate that relativistic effects single out particular units of measurement to the exclusion of others without having an effect on the observed phenomena and all within the same reference frame before being able to substantiate any claim that the result of a particular measurement is arbitrary. Can you demonstrate that? Relativistic effects certainly single out measurements of time - also length in the direction of velocity. It has been demonstrated numerous times that the velocity of a clock affects the length of its second. What is the velocity of the cesium clock on Earth? -- 73, Cecil http://www.w5dxp.com |
#10
![]() |
|||
|
|||
![]()
Cecil Moore wrote:
Jim Kelley wrote: You'd have to be able to demonstrate that relativistic effects single out particular units of measurement to the exclusion of others without having an effect on the observed phenomena and all within the same reference frame before being able to substantiate any claim that the result of a particular measurement is arbitrary. Can you demonstrate that? Relativistic effects certainly single out measurements of time - also length in the direction of velocity. It has been demonstrated numerous times that the velocity of a clock affects the length of its second. What is the velocity of the cesium clock on Earth? Zero by definition. -- Jim Pennino Remove .spam.sux to reply. |
Reply |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|