O world engineering teachers & non-applicants of engg. studies for 20 yrs!

Those who teach engineering course can't practise engineering.
Those who can't self-weather for 20 yrs in social can't be engineers even though they study engg.
Engineering is self-weathering in social over 20 yrs
by appication of studies on control systems at first;power devices at next;machine design at last;and building structures at ultimate.