FILE PHOTO 17OCT90 - Nobel Prize winning physicist Henry Kendall of the Massachusetts Institute of Technology (MIT) explains his research into the structure of matter as he gestures to an atomic chart in his office in Cambridge, Massachusetts, October 17, 1990. Kendall, died during an underwater photography dive, February 16, in Florida. Investigators have not determined if Kendall died of a heart attack or encountered a problem in the water and drowned.

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