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A Loud Warning From the Past About Living With Cars
(www.bloomberg.com)
Klaxon automotive horns, once standard safety equipment, disappeared from the roads after World War I.
If you want one, you can still have one.
https://www.amazon.com/s?k=klaxon+horn
If you really want a loud horn, you can get a compressor-driven air horn of the sort that trains have:
For stuff that's neat. Neat article? Neat video? Neat pic of a bug you saw? All good. Neat meme? Ehhh... take it to the meme subs.