Kara, Most people who work in filed of engineering must be proficient in math. Not everyone is a genius at math. Sarah, A turbine is like a car engine. It is the motor that pushes the air it captures through the engine. The combustor is the component that mixes the air with fuel to make it hot.
Hot air is what is needed to make the air go faster.
I like doing wind tunnel tests. Some times they are fun when you get very interesting data and it goes successful. It is however very hard work. You work long hours and have to be on top of all issues to make sure you are getting the best data possible. No, I do not work on the space shuttle.