The radar cross section for a balloon is generally low (depending on the material), but the payload was a giant slow moving target given the enormous...
I heard the Dr say that our COVID response killed everyone’s immune system. Now you are all in grave risk for heart failure. If I can save a healthy...
A minor point I see - you might try keeping your mouth open slightly, or at least lips apart for your valsalva. When it gets harder, you're trapping...