Re: Risk acceptance

[Valdis.Kletnieks () vt edu]

On Wed, 03 Nov 2010 12:11:54 -0800, "Rob, grandpa of Ryan, Trevor, Devon & Hannah" said:
> http://www.bbc.co.uk/news/science-environment-11687912
>
> Researchers at the Large Hadron Collider (LHC) are getting set to create the Big 
> Bang on a miniature scale.

No actual risk here.  The very same interactions happen to the Earth many times
a *day* - the LHC tops out around 10^13 ev, while cosmic rays have been measured
up in the 10^20 ev range.  For instance, the 'Oh-My-God particle':

http://en.wikipedia.org/wiki/Ultra-high-energy_cosmic_ray

The only reason the LHC got built was so we have some control over
where the interaction happens - those pesky cosmic rays insist on
happening where they want, not where our detectors are...

(To calculate how many times a day it happens, find the effective cross section of the
detectors, the effective cross section of the earth, and work from there...  If nothing
has happened in 4.5 billion years, it probably ain't gonna happen this week...)

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