There might be a small piece of something like a screw a piece of bone or anything hard that has found their way inside the impeller, or chopper area that is at the top of the motor, or the noise could be coming from the drain pump, this dishwasher carry a seperate pump motor assembly from the main wash motor so the noise can be coming from either the pump motor , or from the main motor.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.