Mathematician:Horace Scudder Uhler
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Mathematician
American physicist who worked on geometrical optics, spectroscopy and X-rays.
As a mathematician, demonstrated several Mersenne numbers to be composite without finding one single Mersenne prime.
Also calculated the values of many irrational numbers such as logarithms, reciprocals and roots to a colosssal number of decimal places.
Published the value of $\map {\log_{10} } {9^{9^9} }$ to $250$ decimal places in $1947$.
Apparently he found such work relaxing.
Nationality
American
History
- Born: August 5, 1872 in Baltimore, USA
- Died: December 6, 1956
Theorems and Definitions
Publications
- 1907: Atlas of Absorption Spectra
- 1946: Note on the Mersenne numbers $M_{157}$ and $M_{167}$ (Bull. Amer. Math. Soc. Vol. 52, no. 2: p. 178)
Sources
- April 1953: Adrian Struyk: Mathematical Miscellanea (The Mathematics Teacher Vol. 46, no. 4: pp. 265 – 273) www.jstor.org/stable/27954274
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $9^{9^9}$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $9^{9^9}$