physics

Forward: For a week I've been attempting to research whether there were physics based rules one could use to size the inlet and exhaust of EDF power systems. I've searched through a variety of theorems, principles and concepts and after many brain straining nights I think I've finally crafted a...

Hey Guys, I was wondering if i could get some help, I'm building a small rocket that gets launched off of a boba straw using my breath. Any ideas on how to make fins get a nose cone and make a body? Thanks, anything helps!