COALPORT AREA COAL MUSEUM
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Picture
Picture
LIGHT DETECTOR
to measure the amount of light in foot candle units to detect the appropriate light levels in a mine.

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  • HOME
  • RESEARCH
    • INVENTORY
  • CONTRIBUTE
  • MEMBERS
    • LIFE MEMBERS
    • MINER MEMORIALS
  • NEWS
  • ARTIFACTS
  • LINKS
  • CONTACT