The Moiré Effect Lights That Guide Ships Home

I'd never heard of moiré effect beacons until I got an email asking me about them. It seemed like a really clever idea - but it was really hard to research. Or at least it was, until I stumbled upon one magic phrase that revealed its history. 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? (F

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  • Originally Aired March 5, 2018
  • Runtime 4 minutes
  • Network YouTube
  • Created September 23, 2020 by
    Administrator admin
  • Modified September 23, 2020 by
    Administrator admin