But the shaft of such length is not very "rigid", and the task is to keep it from wringing and breaking by keeping all parts of it rotating at the same speed.
(As a side note: have you heard of selsyns?)
But the shaft of such length is not very "rigid", and the task is to keep it from wringing and breaking by keeping all parts of it rotating at the same speed.
(As a side note: have you heard of selsyns?)