Engineering is merely the slow younger brother of physics.
Robert Heinlein defined the difference between a physicist and an engineer as something like this - warning, mild misogyny ahead:
"Put an engineer and a physicist across the room from a beautiful woman, and tell them that if they approach the woman each step must be no larger than half the distance of the previous step. The physicist gives up because he knows he can never reach her, while the engineer starts walking because he knows he can get close enough for all practical purposes".
I once worked for an engineer who previously had a physicist working for him. The physicist couldn't understand why a couple of 6-volt lantern batteries in series wouldn't start his car - after all, they were putting out 12 volts...