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Henry Way Kendall

From Wikipedia, the free encyclopedia
American particle physicist who won the Nobel Prize in Physics
For other people named Henry Kendall, seeHenry Kendall (disambiguation).
Henry Way Kendall
Henry Kendall climbing inYosemite Valley. Photo byTom Frost.
Born(1926-12-09)December 9, 1926
DiedFebruary 15, 1999(1999-02-15) (aged 72)
Alma materAmherst College (BA)
Massachusetts Institute of Technology (PhD)
AwardsNobel Prize in Physics (1990)
Scientific career
FieldsParticle physics
InstitutionsMIT
Stanford University
Doctoral advisorMartin Deutsch

Henry Way Kendall (December 9, 1926 – February 15, 1999)[1] was an American particle physicist who won theNobel Prize in Physics in 1990 jointly withJerome Isaac Friedman andRichard E. Taylor "for their pioneering investigations concerningdeep inelastic scattering ofelectrons onprotons and boundneutrons, which have been of essential importance for the development of thequark model in particle physics."[2]

Biography

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Kendall was born inBoston to Evelyn Way andHenry P. Kendall, an industrialist. Kendall grew up inSharon, Massachusetts and attendedDeerfield Academy.[3] He enrolled in theU.S. Merchant Marine Academy in 1945, and served on a troop transport on the North Atlantic in the winter of 1945 – 1946.

In 1946, he enrolled atAmherst College where he majored in mathematics, graduating in 1950. While at Amherst, he operated adiving andmarine salvage company during two summers. He co-authored two books, one on shallow water diving and the other onunderwater photography.

He did graduate research at theMassachusetts Institute of Technology, involving an experimental study ofpositronium, and he obtained his PhD in 1955. He then spent the next two years as a postdoctoral fellow atBrookhaven National Laboratory. He then spent five years inRobert Hofstadter's research group atStanford University in the late 1950s and early 1960s, where he worked withJerome Friedman andRichard Taylor, studying the structure ofprotons andneutrons, using the university's 300 feet longlinear electron accelerator. He developed a close working relationship withWolfgang K. H. Panofsky at Stanford.

Kendall joined the faculty of theMIT Physics Department in 1961, where he remained until his death in 1999. He was named Julius A. Stratton Professor of Physics in 1991.[4]

In the late 1960s and early 1970s, Kendall worked in collaboration with researchers at theStanford Linear Accelerator Center (SLAC) including Friedman and Taylor. These experiments involved scattering high-energy beams ofelectrons fromprotons anddeuterons and heaviernuclei. At lower energies, it had already been found that the electrons would only be scattered through low angles, consistent with the idea that thenucleons had no internal structure. However, the SLAC-MIT experiments showed that higher energy electrons could be scattered through much higher angles, with the loss of some energy. These deep inelastic scattering results provided the first experimental evidence that the protons and neutrons were made up of point-like particles, later identified to be theup anddownquarks that had previously been proposed on theoretical grounds.[5] The experiments also provided the first evidence for the existence ofgluons.

Kendall was not only a very accomplished physicist, but also a very skilled mountaineer and photographer. He did extensive rock climbing inYosemite Valley, followed by expeditions to theAndes,Himalaya andAntarctica, photographing his experiences with large format cameras. He was elected a Fellow of theAmerican Academy of Arts and Sciences in 1982.[6] On April 7, 2012, theAmerican Alpine Club inducted Kendall into its Hall of Mountaineering Excellence at an award ceremony inGolden, Colorado.[7]

Service activities

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Kendall was one of the founding members of theUnion of Concerned Scientists (UCS) in 1969.[3] He served as chairman of the board of the UCS from 1974 until his death in 1999.[8] His public policy interests included avoidingnuclear war, theStrategic Defense Initiative, theB2 bomber,nuclear reactor safety andglobal warming.

He was also a member of theJASON Defense Advisory Group.[9]

Death

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Kendall died while diving the cave at theEdward Ball Wakulla Springs State Park, Florida as a part of the Wakulla 2 Project.[3][10] He bypassed two pre-divechecklists for hisCis-Lunar MK-5P Mixed Gasrebreather and entered the spring basin without hisdive buddy from theNational Geographic Society.[10][11] Kendall missed turning on theoxygen supply to his rebreather andlost consciousness and drowned.[10][11] Theautopsy revealed a physiological issue that led to his disregarding the protocols.[10]

Awards and honors

[edit]

References

[edit]
  1. ^Henry Way Kendall on Nobelprize.orgEdit this at Wikidata
  2. ^"Nobel prize citation". Nobelprize.org. Retrieved2011-01-08.
  3. ^abcSales, Robert J (1999-02-16)."MIT Nobelist Henry Kendall dies at 72 while scuba diving in Florida lake". MIT News Office. Retrieved2011-01-08.
  4. ^"Collection: Henry W. Kendall papers | MIT ArchivesSpace".archivesspace.mit.edu. Retrieved2020-08-25.
  5. ^Dye, Lee; Maugh II, Thomas H (1990-10-18)."Four U.S.-Based Scientists Share Nobel Prizes".Los Angeles Times. Retrieved2011-01-08.
  6. ^"Book of Members, 1780–2010: Chapter K"(PDF). American Academy of Arts and Sciences. Retrieved14 April 2011.
  7. ^Osius, Alison (April 11, 2012)."Beautiful minds: Blum, Reichardt, Kendall, Molenaar in Mountaineering Hall of Fame".Rock and Ice. Archived fromthe original on April 12, 2012. RetrievedApril 11, 2012.
  8. ^Oliver, Myrna (1999-02-17)."Henry Kendall; Nobel Prize-Winning Nuclear Scientist".Los Angeles Times. Retrieved2011-01-08.
  9. ^Berkeley Scientists; Engineers for Social; Political Action (1972)."The Story of Jason – The Elite Group Of Academic Scientists Who, As Technical Consultants To The Pentagon, Have Developed The Latest Weapon Against Peoples' Liberation Struggles: "Automated Warfare"". Archived fromthe original on 2011-06-07. Retrieved2011-01-08.
  10. ^abcdKakuk, Brian J (1999). "The Wakulla 2 Project: Cutting Edge Diving Technology for Science and Exploration".In: Hamilton RW, Pence DF, Kesling DE, Eds. Assessment and Feasibility of Technical Diving Operations for Scientific Exploration.American Academy of Underwater Sciences.
  11. ^ab"Safety Lapse Suspected in Scientist's Diving Death".Los Angeles Times. Associated Press. 1999-02-18. Retrieved2011-01-08.
  12. ^"Golden Plate Awardees of the American Academy of Achievement".www.achievement.org.American Academy of Achievement.

External links

[edit]
Wikimedia Commons has media related toHenry Kendall.
Wikiquote has quotations related toHenry Way Kendall.
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