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From: jimp on 6 Apr 2010 11:11 In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote: >> >An earthquake ain't something subtle. >> >> >If you are having problems tracking the stresses in the earth you need >> >to switch to another field. >> >> >Bret Cahill >> >> Cantelever a sheet of glass. Put a bucket on it and trickle water in, >> drop by drop. Predict which drop will break the glass. Show your work. > > Some inventor came up with sensor that could save money on helicopter > rotors. It gave about 3 seconds warning before the rotor failed. > > It didn't sell. Since rotor failure during normal flight within the operating limitations of the aircraft is a rare occurance and 3 seconds isn't enough time to do anything usefull, there is no surprise there. -- Jim Pennino Remove .spam.sux to reply.
From: jimp on 8 Apr 2010 16:10
In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote: >> Too many variables, too little known. > > A lot of unknowns isn't a problem if you have enough equations. And ice cream has no bones. How about stating the obvious? > The after shocks are coming every few seconds for hours on end. > There must be tera bytes of information in those waves. > > If a formation is compressing over time then it might be possible to > know the displacement to the nearest cm. And seismic activity, especially in the Western US, has been heavily instrumented and monitored for decades now. No method to date to do predictions based on history. -- Jim Pennino Remove .spam.sux to reply. |