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Does the soul weigh 21 grams?
Key Facts In This Video
Dr. Duncan MacDougall placed six dying patients on a specialized scale in 1907, hoping to measure the weight of the human soul as it departed from the body. 00:18
MacDougall repeated his soul-measuring experiment on dogs, which he assumed had no souls. 01:03
The precise moment of a person's death is extremely hard to measure (or even agree upon) for scientists today. 02:01