"Sonic attack" in China.

[coderman]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Friday, December 20, 2019 9:04 PM, jim bell <jdb10987 at yahoo.com> wrote:

> 'Sonic attack' impacted 'at least 20 regions' of US diplomat's brain - but cause remains unknown, new study finds
> https://news.yahoo.com/sonic-attack-impacted-least-20-204353837.html
>
> Jim Bell's comment:
>
> Why not use a sound spectrum analyzer, running on a smartphone app, to identify this?

because it's not RF: it's pesticides!  https://www.bbc.com/news/world-latin-america-49770369

(they checked radio and audio spectrum to no avail...)

best regards,
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