I used my particle physics and knowledge of quantum topology to hybridise a new species of drought-resistant pineapple just the other day. It's that easy!
Well, we did have plenty of engineered items before having the proper physics theory to explain what was happening. Physics does a whole lot more than simply enabling engineering to do more. It's the basis of our understanding of the universe.
Oh, I do my plumbing based on political science. But that's not especially modern. The real genius is using music theory to run my email server. I'm setting self-hosted jazz on a saxophone next weekend.