The moiré effect lights that guide ships home
Tom Scott · 1 则 HN 推荐
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Tom Scott investigates moire-effect beacons, called Inogon leading marks, a Swedish invention from the 1980s that shows different patterns depending on the viewer's position. He visits one used to mark an undersea cable and tracks down its history.
HN 推荐的原因： Linked as the accessible explanation of how moire navigation lights work.
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