My question is this.... What is big enough and with enough power to cause the booms in that context......yet leave nothing to see afterward for destruction or even the release of power that suggests?
Sonic Boom Basics
I know the above link is basic to almost an insulting level....but I list it for this:
I'd never actually seen it done and captured mere feet above physical ground level. I'll bet they worked half the day to time that shot to come at
the instant it was in good camera range and framed for the split second. It's quite a blast wave we hear too. Google up a U.S. Aircraft Carrier demo
of jets breaking the sound barrier in low altitude flybys for VIP's. It's hilarious because they always seem to start asking each other "was that
it??" JUST as the real shock wave/sound hits. That must be a high point for Carrier officers.
Here is my problem. The Sound Barrier is broken well under 800 Miles Per Hour. The sky diver recently broke 833 Miles Per Hour and the ammunition I
reload to shoot is generally loaded to come right around 1200 Feet Per Second outside the rifle calibers. That is 818 Miles Per Hour. The skydiver did
not become strawberry jam and I don't recall a big deal made of huge sonic booms from him. My firearms make enough bang to ring your ears for awhile
but can't be heard from a few blocks away, normally.
So.. ^^ We see that sonic booms can come in all shapes, sizes and altitudes but BIG ones take a BIG event ...or in the case of the Shuttle, something
so insanely far beyond the barrier, that breaking it can be heard over an area of a nation....not just localized.
.......... So what the heck is making the booms and do we even WANT to know? Perhaps, just occasionally, ignorance is bliss on topics we can do
nothing but fret about the details of?