wrote:
i want to build a jet engine
i don't know anything about jets
where do i start-where do i get plans
i do not have a physics degree

Try the book "Model Jet Engines" by Thomas Kamps
Here's a link:

http://www.amazon.com/Model-Jet-Engi.../dp/190037191X

Or "Gas Turbine Engines for Model Aircraft" by Kurt Schreckling & Keith
Thomas. Here's another link:

http://www.amazon.com/Gas-Turbine-En.../dp/0951058916