In Book 4 aka Duel Nature, a character has a hypersonic projectile pass next to their ear from a gauss rifle I think. So I asked a question on another site and was wondering if it was true and if you agreed with it.
https://www.quora.com/What-happens-when-a-hypersonic-projectile-pass-next-to-a-human-ear
“There is a shock wave and a pressure pulse will hit the ear drum.
As long as it is less than the bursting pressure of the ear drum, the person will merely hear a LOUD noise.
Period.”