This is an abrasive disk, rotating at 1500 rpm. When I shine my flashlight at it, it carries the glow with it, approximately halfway around the disk. What am I seeing happen here?

  • 9point6@lemmy.worldEnglish
    76·
    6 months ago

    I saw “iron”, “aluminium” and “oxide” and I briefly assumed you were trolling until I looked again to check which one was the oxide.