On: Satellite images of the Beirut explosion site – before and after

[melonkidney]

Seems like the silo acted as a lens for the shockwave.

Related video from Steve Mould where he demonstrates this with a balloon and sound waves:

https://www.youtube.com/watch?v=RLBmWF9Xo10

[Edit: added correct link]

[cbm-vic-20 → melonkidney]

Tom Scott did a video about another acoustic lens: the "sound mirror" overlooking the English Channel that was intended to be an early warning against aircraft coming from the continent.

https://www.youtube.com/watch?v=04F5osXK4vw

[re → melonkidney]

[edit: parent comment has been fixed]

[melonkidney → re]

You're absolutely right, thanks. The joys of sharing via mobile...