Aerospace Engineering Question:

Why the stall of the swept wing tends to occur at the tips first?
Why the fuselage of the pressurized aircraft is made of circular cross section?
Can we put engines on the end of a wing? If not, then why?
What is ram jet?
Why refrigeration is done inside aircraft, and why aircraft body is made of aluminum's?
Does not simplification of complex honeycomb designed for thermal protection system of are usable launch vehicles jeopardize the accuracy of results?
Are thermal protection systems of space craft's commonly composed of one panel or a collection of smaller tiles?
What is the highest temperature the space shuttle under surface experiences during its mission?
Explain how you overcame a major obstacle?
What are the main areas in Aviation?