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Edwin
Edwin is offline
#173
Sep24-11, 05:56 PM
P: 167
Quote Quote by millitiz View Post
That is my point - if they somehow synchronize the neutrino with gamma ray from the emitter, then as I said, it would be an amazing technique because the light would be so scattered that it would be nearly none existing - and if they calculate the speed through distance/duration, then as I said, 60 nanoseconds is on the order of 10 m of differences. And from my limited knowledge, it could be an error somewhere. Although in the news (maybe not this one), they did check the result - and it also said that it is beyond statistic significance (I would assume it is 3 sigma? Although the news did not say anything about it) - then they probably did take into account of the error of measuring things.

I guess my bottom line is that, we will have to wait a bit longer, and as you noted, probably would have to dig around. I remember in the BBC news, it said that the team is going to talk about it soon. Although I would imagine it to be a false alarm...maybe.
I hope this is not overly speculative: I was wondering if seasonal temperature variations over large land masses can cause the ground to expand in such a way as to offset the straight line distance between two landmarks 730 kilometers apart by about 10 meters, or so? I had spoken a while back with a person who was familiar with bridge design, who explained that bridges can expand during summer due to the materials in the bridges being heated to higher temperatures during the summer months. So a natural question in my mind was whether the same thing is true for general land masses. I have tried searching around, but have not found any information that states that the ground of land masses in various regions expands during summer months in a way as to significantly change distances between landmarks (but I did not look very hard: it was a quick search, about 5 minutes of googling various links, so if there is an obvious link, I apologize).


I was wondering if the distance between the two facilities could have deviated by a factor of plus or minus 10 meters as a result of the expansions and contractions of the land mass the facilities and tunnels sit on due to seasonal variations in temperature of the ground?

p.s. I have removed this post a couple of times, as I think I am having problems with posting successfully. I am not sure if I did this right, but if this post ends up in more than one place, I apologize, and to the moderator, please delete any duplicates. Any duplicates is unintentional and is a result of my having difficulty with posting: I am not sure if I am having problems with my account, or if it is just plain error on my side.