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Herbert William Heinrich's work, particularly his Domino Theory and Safety Pyramid, provided foundational ideas for workplace safety. The Domino Theory suggests accidents are a sequence of events, where removing a single "domino," specifically an unsafe act or hazard, can prevent the resulting injury. His Safety Pyramid illustrates that serious accidents are preceded by many less severe incidents and near misses, implying that preventing minor events helps prevent major ones. Although his theories have been criticized for focusing too heavily on individual fault, they remain influential in emphasizing the importance of identifying and controlling workplace risks.
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