Truman Henry Safford
|Truman Henry Safford|
Safford circa 1844, by Southworth & Hawes
January 6, 1836|
|Died||June 13, 1901(aged 65)|
|Known for||Calculating prodigy|
He was born in Royalton, Vermont, US, on 6 January 1836. At an early age he attracted public attention by his remarkable calculation powers. At the age of nine, a local priest asked him to multiply 365,365,365,365,365,365 by itself. In less than a minute he gave the correct answer of 133,491,850,208,566,925,016,658,299,941,583,225 with no paper. At around this age he also developed a new rule for calculating the moon's risings and settings, taking one-quarter of the time of the existing method.
Unlike many other calculating prodigies, Safford did not give public exhibitions. He went to college and studied astronomy. He became the second director of the Hopkins Observatory at Williams College, the oldest extant astronomical observatory in the United States. He served as director of the Observatory until his death.
The Safford Fund for Williams College student researchers was created by his descendants to honor him. A portrait of him as a child prodigy hangs in the Hopkins Observatory's Mehlin Museum of Astronomy, adjacent to the Milham Planetarium. His natural calculating abilities seemed to wane with age.
- "Prof. Truman H. Safford". New York Times. June 14, 1901. Retrieved 2014-01-08. "Truman Henry Safford, Field Memorial Professor of Astronomy at Williams College, died at 8:30 o'clock yesterday morning at the home of his sons, 112 Broad Street, Newark, N.J. Prof. Safford suffered a stroke of paralysis seven years ago, and for the past year his health has precluded any activity in the duties of his position. ..."
- W. W. Rouse Ball (1960) Calculating Prodigies, in Mathematical Recreations and Essays, Macmillan, New York, chapter 13.
- The Remarkable 'Lightning Calculator,' Truman Henry Safford, Harvard Magazine, vol. 85 (1982), pp. 54-56. Co-author: K.R. Lewis.
- Describes his agitation at calculating
- Hopkins Observatory
- "Obituary: Truman Henry Safford," The Observatory, vol. 24 (1901), pp. 307–309, http://adsabs.harvard.edu/full/1901Obs....24..307
- "The Celebration of the Semi-Centennial of the Chicago Astronomical Society and the Dedication of a Tablet to the Memory of Truman Henry Safford," Popular Astronomy, vol. 21 (1913), pp. 473–479, http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1913PA.....21..473F&link_type=ARTICLE&db_key=AST&high=4e8047f40e10119
- "Truman Henry Safford", Science, Volume 14, Issue 340 (1901), pp. 22–24, http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1901Sci....14...22J&link_type=EJOURNAL&db_key=GEN&high=4e8047f40e10119