Duncan MacDougall
American physician (1866-1920)
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United StatesSummary
Updated 2026-06-22
The 21 grams experiment refers to a study published in 1907 by Duncan MacDougall, a physician from Haverhill, Massachusetts. MacDougall hypothesized that souls have physical weight, and attempted to measure the mass lost by a human when the soul departed the body. MacDougall attempted to measure the mass change of six patients at the moment of death. One of the six subjects lost three-quarters of an ounce.
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- Duncan MacDougallLow confidencewikipedia · vi.wikipedia.org
- دونكان ماكدوغالLow confidencewikipedia · ar.wikipedia.org
- دونكان ماكدوجالLow confidencewikipedia · arz.wikipedia.org
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