On 06Mar2021 0806, James Catchpole - jlcatchpole at googlemail.com (via
tml list) wrote:
> Or stray clouds of sand from a battle.
These could have interesting vectors too, as ships in a fight often
manoeuvre in all kinds of directions without regard for where their
vectors will take them in days or months (you can sort all that out
afterwards).

--
Rupert Boleyn <xxxxxx@gmail.com>