In reply to Jürg Wyttenbach's message of Fri, 30 Aug 2019 01:59:00 +0200: Hi, [snip] >Some years ago people feared that CERN might produce black holes... > >the imagination of such things is deep old children instinct driven >behavior that outplays the brain.
No, it's just caution, which is wise, if a potential exists to blow up the planet. > >To split a proton you need to add about 53MeV. You can do this only with >dense Hydrogen as this state is able to directly accept and store >photons of e.g. a laser. The splitting - chain reaction - for a total >conversion of proton mass to photons is restricted to the tiny area of >condensed dense hydrogen. There is absolutely no chance that such a >reaction goes farther as the produced energy has the form of K,Pi,Muon >and is transported miles away before it starts to react again. That wouldn't matter if miles away it encounters another massive particle that repeats the process. Such a situation is guaranteed to be encountered within the Earth itself. However if it's a one to one relationship, i.e. no growth, then the output from a single ongoing reaction would only be a few micro-watts, and consequently not a problem. However if it grows exponentially, then it would become problematic eventually. Regards, Robin van Spaandonk local asymmetry = temporary success