Okay. Then explain to me how ufos can be the most unerodynamic shapes (like, a cube), travelling thousands of miles per second, and create no noise whatsoever ?A larger aircraft displaces more of the atmosphere. If an aircraft is larger is it obviously much heavier... because it's larger... and so has more materials in it (do I honestly have to mention this?). The mass itself does not impact displacement, volume does. It's the displacement of air by the leading edge of the aircraft that causes the shockwave.
Jesus wept. Go back to primary school and sit in on a physics class. This is ridiculous.
EDIT: to be clear, that doesn't mean reducing intertial mass has no impact on an aircraft. Quite the contrary. A lighter vehicle is more maneuverable. It requires less force to accelerate and change direction. So handling of a craft that is made lighter is going to be improved. All other things beind equal however zero impact on the boom.
Clearly they are employing technology which makes our aircraft, which have to deal with air friction, look extremely primitive. They have achieved elimination of air friction alltogether.
You are talking from a human-level understanding of physics, not from an advanced extraterrestrial perspective - and let me remind you that no, our scientific understanding has not reached the universal apex.
Hypersonic velocities without signatures is one of the key observables that has come out of the AATIP program. This has been confirmed. This is not speculative conjecture.
Can you explain how that is achieved, Dr. Sheldon Cooper ?