The most diversified PhD program-??? Hello everybody, I'm an Instrument Engineer working in Oil&Gas sector(field work in automation with transmitters,sensors,valves,PLCs,etc.) who wants to follow the PhD program in one of the US universities.The thing is I have a varied set of interests which make my choice quite complicated.I'm really good at maths,physics,electronics,langs, and I really like 'em all.I also like to do different chemical experimets on my own as a hobbyist. I understand that considering my education and industrial experience it's more logical for me to choose some PhD program in engineering rather than in a science.Besides that,I like when the theory is applicable. So,my question is the following:which multi-varied PhD program could be the best fit for me?I'd like to do a research in some diversified field which requires knowledge from physics,maths,electronics,chemistry simultaneously because the Electrical and Electronics engineering alone doesn't cover the spectrum of my interests.I need something more varied,more diverse.Could you share your opinions on that and advice me sth,pls? Thanks in advance!!!