Kevin's Bacon on Nostr: This is fucking cool! A hundred years ago and they had this level of tech, that's ...

This is fucking cool! A hundred years ago and they had this level of tech, that's something else.

quoting
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In 1923, aircraft were used to release titanium tetrachloride as a smokescreen to conceal ships at sea. When exposed to moisture in the air, the chemical produced a dense white cloud—made up not just of smoke, but fine droplets of hydrochloric acid and titanium oxychloride.