....and what else, dazzlenation?..."so that's how he does it" mcdonald was to conclude....back in the CIA lab...after CF had attempted to explain etc etc..."it's like a boom-boom in my ear"....see previous post....go figure:
Sonic boom - Sonic boom - Wikipedia
The "boom" is experienced when there is a sudden change in pressure; therefore, an N-wave causes two booms – one when the initial pressure-rise reaches an observer, and another when the pressure returns to normal. This leads to a distinctive "double boom" from a supersonic aircraft. When the aircraft is maneuvering, the pressure distribution changes into different forms, with a characteristic U-wave shape.
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