This is a sidewalk grip where it ramps up from the street. I noticed that all of them have the same melt pattern. Low traffic area when no one was out.

Just curious if anyone knows why

  • Dustwin
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    5 days ago

    Have we considered the snow fell in that pattern? 😲😂

    • howrar
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      4 days ago

      Snow is simultaneously a particle and a wave. What you’re seeing is the destructive interference resulting from its wave-like behaviour.