Thomas Corwin Mendenhall

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birth_date = October 4, 1841
birth_place = Hanoverton, Ohio
death_date = March 23, 1924
death_place = Ravenna, Ohio
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nationality = US
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field = physics meteorology
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known_for = gravity
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Thomas Corwin Mendenhall (October 4, 1841 – March 23, 1924) was an autodidact US physicist and meteorologist.

Biography

Mendenhall was born in Hanoverton, Ohio to Stephen Mendenhall, a farmer and carriage-maker, and Mary Thomas, and married Susan Allan Marple in 1870. The couple had one child. In 1852 the family moved to Marlboro, Ohio and Mendenhall became principal of the local primary school in 1858. He formalized his teaching qualifications at Southwest Normal School in 1861 with an "Instructor Normalis" qualification.Carey (1999)]

He taught at a number of high schools, gaining an impressive reputation as a teacher and educator until 1873 when, although lacking conventional academic credentials, he was appointed professor of physics and mechanics at the Ohio Agricultural and Mechanical College. The College ultimately became Ohio State University, Mendenhall being the first member of the original faculty. [ [http://www.wosu.org/archive/horseshoe/men.htm] The Birth of Ohio Stadium ]

In 1878, on the recommendation of Edward S. Morse,Fact|date=August 2007 he was recruited to help the modernization of Meiji Era Japan as one of the "o-yatoi gaikokujin" (hired foreigners), serving as visiting professor of physics at Tokyo Imperial University. In connection with this appointment he founded a meteorological observatory in which systematic observations were made during his residence in Japan. From measurements using a Kater's pendulum of the force of gravity at the sea level and at the summit of Mount Fuji, Mendenhall deduced a value for the mass of the Earth that agreed closely with that which Francis Baily had obtained in England by another method. He also made a series of elaborate measurements of the wavelengths of the solar spectrum by means of a large spectrometer. He also became interested in earthquakes while in Japan, and was one of the founders of the Seismological Society of Japan. [ [htp://famousamericans.net/thomascorwinmendenhall/] Famous Americans ] During his time in Japan, he also gave public lectures on various scientific topics to general audiences in temples and in theaters.

Returning to Ohio in 1881, Mendenhall was instrumental in developing the Ohio State Meteorological Service. He devised a system of weather signals for display on railroad trains. This method became general throughout the United States and Canada.

He became professor at the US Signal Corps in 1884, introducing of systematic observations of lightning, and investigating methods for determining ground temperatures. He was the first to establish stations in the United States for the systematic observation of earthquake phenomena. [ [htp://famousamericans.net/thomascorwinmendenhall/] Famous Americans ]

Resigning in 1886, Mendenhall took up the presidency of the Rose Polytechnic Institute in Terre Haute, Indiana before becoming superintendent of the U.S. Coast and Geodetic Survey in 1889. During his time as superintendent, he issued the Mendenhall Order and oversaw the consequent transition of the United States's weights and measures from the customary system, based on that of England, to the metric system. Mendenhall remained a strong proponent for the official adoption of the metric system all his life. Also, as superintendent of the U.S. Coast and Geodetic Survey, he was also responsible for defining the exact national boundary between the United States (Alaska) and Canada. Mendenhall was president of the Worcester Polytechnic Institute from 1894 until 1901 when he emigrated to Europe.

He returned to the United States in 1912. He was appointed to the Board of Trustees of Ohio State University in 1919, and is remembered for his successful efforts to close the College of Homeopathic Medicine and his unsuccessful effort to limit the capacity of Ohio Stadium to 45,000 seats, contending that it would never be able to fill to its design capacity of 63,000 seats. [ [http://www.wosu.org/archive/horseshoe/men.htm] The Birth of Ohio Stadium ] He continued to serve as a trustee until his death at Ravenna, Ohio in 1924.

Work on stylometry

In 1901 Mendenhall published one of the earliest attempts at stylometry, the quantitative analysis of writing style. Prompted by a suggestion made by the English mathematician Augustus de Morgan in 1851, Mendenhall attempted to characterize the style of different authors through the frequency distribution of words of various lengths. After generating the relevant statistics from published works, he applied his "word spectra" methods to a comparison of the works of William Shakespeare and Sir Francis Bacon. He found that the results did not support long-standing claims that Bacon was the true author of the works usually attributed to Shakespeare. It has however since been shown by Williams that Mendenhall failed to take into account "genre differences" that could invalidate his conclusions. [Williams (1975)]

Honors

*Honorary Ph.D. from Ohio, (1878); [ [http://www.wosu.org/archive/horseshoe/men.htm] The Birth of Ohio Stadium ]
*Member of the National Academy of Sciences, (1887);
*LL.D. from the University of Michigan, (1887); [ [htp://famousamericans.net/thomascorwinmendenhall/] Famous Americans ]
*President of the American Association for the Advancement of Science, (1889);
*The Mendenhall Valley and glacier in Juneau, Alaska was named for him in (1892); [ [http://www.fs.fed.us/r10/tongass/districts/mendenhall/faq.html] Mendendall Glacier Visitor Center home page ]
*The Mendenhall Laboratory on the campus of The Ohio State University is also named in his honor. [Alexander (1926)]

References

Bibliography

Works by Mendenhall

*cite book | author=Mendenhall, T. C. | year=1887 | title=A Century of Electricity | location=New York | publisher=Houghton, Mifflin and Co.

Obituary

*"Science", 11 July 1924

Works about Mendenhall

*cite journal | author=Alexander, W. H. | title=PDF| [https://kb.osu.edu/dspace/bitstream/1811/2311/1/V26N04_183.pdf Report of the thirtysixth annual meeting of the Ohio Academy of Science] |1.66 MiB | journal=Ohio Journal of Science | volume=26(4) | pages=185–186 | year=1926
* [Anon.] (2001) "Mendenhall, Thomas Corwin", "Encyclopaedia Britannica", Deluxe CDROM edition
*Carey, C. W. (1999) "Mendenhall, Thomas Corwin", "American National Biography", Oxford University Press, 15: 297-298, ISBN 0-19-520635-5
*Crew, H. (1934) "Thomas Corwin Mendenhall", "Biographical Memoirs of the National Academy of Sciences", 16: 331-315
*Hebra, A. & Hebra, A. J. (2003) "Measure for Measure: The Story of Imperial, Metric, and Other Units" ISBN 0-8018-7072-0
*cite journal | title=Scientists and the schools of the nineteenth century: The case of American physicists | author=Joncich, G. | journal=American Quarterly | volume=18(4} | year=1966 | pages=667-685
*Mendenhall, T. C. (Jr.) (1989) "American Scientist in Early Meiji Japan: The Autobiographical Notes of Thomas C. Mendenhall", ISBN 0-8248-1177-1
*cite journal | author=Williams, C. B. | year=1975 | title= [http://biomet.oxfordjournals.org/cgi/content/abstract/62/1/207 Mendenhall's Studies of Word-Length Distribution in the Works of Shakespeare and Bacon] | journal=Biometrika | volume=62(1) | pages=207–212 | doi=10.1093/biomet/62.1.207 (subscription required)

Persondata
NAME= Mendenhall, Thomas Corwin
ALTERNATIVE NAMES=
SHORT DESCRIPTION=autodidact US physicist and meteorologist
DATE OF BIRTH=October 4, 1841
PLACE OF BIRTH=Hanoverton, Ohio
DATE OF DEATH=March 23, 1924
PLACE OF DEATH=Ravenna, Ohio