> I presume all has been thoroughly examined. /s I'll bet they've put more thought into it than someone only just reading about it now. :P It's not like huge

> I presume all has been thoroughly examined. /s I'll bet they've put more thought into it than someone only just reading about it now. :P It's not like huge underground tanks of petrol or high current electricity in close proximity of people are without risk either. Seriously though, to operate one of these you'd have to have liability insurance. So the manufactured would have to put some engineering into making it an insurable risk before anyone will buy and install it. One could speculate that they might even have started with the max amount of kinetic energy they could safely contain and worked backwards to get that 17,000rpm * half ton answer.