Danny Mayer <[email protected]> wrote: > On 12/27/2011 11:45 PM, Greg Hennessy wrote: >> On 2011-12-28, Danny Mayer <[email protected]> wrote: >>> On 12/27/2011 9:08 PM, John Hasler wrote: >>>> Danny writes: >>>>> GPS is not used for this kind of thing, they are too inaccurate, so it >>>>> doesn't matter. They use atomic clocks. >>>> >>>> The requirement is for synchronization. They use common view GPS. >>> >>> That's not good enough for experiments like this. >> >> In what way is it not good enough? The neutrinos are apparently >> arriving about 60 nanoseconds early, the distance is known, through >> GPS to 10's of centimeters, and the time is synchronized, again >> through GPS (although a second method is used as a double check) to >> about 1 nanosecond. In what fashion is it 'not good enough'? > > No, they use synchronized Cesium atomic clocks for time accuracy. GPS is > only used to get a fix on the location and I'm not sure that 10's of > centimeters is good enough for what they are trying to prove. I'd have > to look closely at the methods used and the data to even have a clue as > to what is needed and I have touched that stuff in years. > > Danny
Why don't you read some of the available literature before you make an even bigger fool of yourself with your arm-waving guesses and conjecture? -- Jim Pennino Remove .spam.sux to reply. _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
