jamalkoiyess said:
Hello
Lately i have been searching for what to do in university and i decided to go for physics because i am passionate about it. Then i visited the campus of the university i am planning to go into and had a talk with the physics department chairman , he told me that if i had a PhD in experimental physics i will have the same knowledge as an engineer in the same field. I mostly like research and development in physics so any advices on what to do would be great. Thanks.
Research is doing something that has never been done before. Engineering is doing something that has been done before. The distinction is a bit blurred because research always has elements that have been done before, and engineering always has elements that have never been done before, so it is a question of emphasis.
As far as practicalities go, there is a great deal of money to be earned by selling variations on things that have been done before. There is usually very little money to be earned by selling things that have never been done before. But there are some exceptions, like building a quantum computer. It is quite possible that the patents on that would be worth a lot of money.
Some (most?) physics PhDs go into engineering. They would be inclined to be in the more speculative end of engineering, like working with superconductors. Such "gee-whiz" "cutting edge" things may be funded by venture capitalists who will fund twenty ventures and hope one works out bigtime. That's what I did as a programmer. My boss was an ex-professor from a hotshot university. The system was a scaled-up, commercial version of his experimental systems at Carnegie-Mellon.
There are things like the Google search engine, a pretty simple idea but it had yet to be done. So in a way it was research, but once you had the idea then the whole shebang that followed it was engineering. Google does things like design their own switches to handle vast amounts of data. That's cutting-edge engineering.
It is hoped that something like the LHC will spin off technology that may be profitably exploited. So work experience there could translate into getting hired for these new ventures.
As a physics PhD you usually commit to a technology. If it makes it big, you might make it big too. If not, not.