The Moiré Effect Lights That Guide Ships Home
It turns out this thing's called an "Inogon leading mark" or "Inogon light" -- Inogon, not Inogen -- and it's a Swedish invention from the 1980s. But there's still a question: why is being used to mark an undersea cable, instead of guiding people home?
Posted 6 years ago by Hoofie in category: interesting

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