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  #1 (permalink)  
Old Fri Jul 24, 2009, 08:49am
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Quote:
Originally Posted by BadNewsRef View Post
If that is the measurement of a second how could it have been scientifically defined prior to the 20th Century?

And why is that the measurement?
1. Prior to the development of chronometers capable of measuring microseconds, the sidereal second was sufficiently precise.

2. It matches a sidereal second pretty closely. If you're asking why cesium 133, I don't know the answer to that one. Sorry!
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  #2 (permalink)  
Old Fri Jul 24, 2009, 09:26am
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Quote:
Originally Posted by mbyron View Post
1. Prior to the development of chronometers capable of measuring microseconds, the sidereal second was sufficiently precise.

2. It matches a sidereal second pretty closely. If you're asking why cesium 133, I don't know the answer to that one. Sorry!
2 is easy. cesium 132 wasn't quite long enough, and cesium 134 was too long.
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Old Fri Jul 24, 2009, 09:28am
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Originally Posted by Snaqwells View Post
2 is easy. cesium 132 wasn't quite long enough, and cesium 134 was too long.
Finally something that makes sense in this silly thread.
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Old Fri Jul 24, 2009, 05:45pm
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Quote:
Originally Posted by mbyron View Post
1. Prior to the development of chronometers capable of measuring microseconds, the sidereal second was sufficiently precise.

2. It matches a sidereal second pretty closely. If you're asking why cesium 133, I don't know the answer to that one. Sorry!


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  #5 (permalink)  
Old Fri Jul 24, 2009, 06:15pm
Ref Ump Welsch
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Actually, Doane's fifth game of the season, Nebraska-Omaha's season opener after an exhibition against Iowa State.
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Old Mon Jul 27, 2009, 09:53am
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Originally Posted by Ref Ump Welsch View Post
Actually, Doane's fifth game of the season, Nebraska-Omaha's season opener after an exhibition against Iowa State.

And, since N-O is the home team, it's probably the first day D-II schools are allowed to have a contest.
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  #7 (permalink)  
Old Mon Jul 27, 2009, 01:36pm
Ref Ump Welsch
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Originally Posted by bob jenkins View Post
And, since N-O is the home team, it's probably the first day D-II schools are allowed to have a contest.
I believe so...several other D-II schools I looked up for the heck of it have their season openers on the same day. UNO will be an interesting one, because the parking basically sucks on their campus to start with. Oh wait, maybe this will be a blessing because noone would be caught dead on a college campus at that hour!
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