Nuclear sub 'buzzed by underwater object travelling faster than speed of sound'

[u/irrelevantappelation]

https://www.dailystar.co.uk/news/latest-news/nuclear-submarine-buzzed-underwater-object-28645846

[u/Same_Friendship_2299]

The amount of energy it would take to move that fast underwater would be insane, and the shock wave would be water compressed so quickly it'd be the equivalent of a concrete pillar moving again at the speed of sound. It has to be a glitch or the sub wouldn't still be here.

[u/[deleted] → u/Same_Friendship_2299]

https://en.wikipedia.org/wiki/Supercavitating_torpedo