Age, Biography and Wiki

Otto Brune was born on 10 January, 1901 in Bloemfontein, Orange Free State, is a (1901 – 1982) South African mathematician. Discover Otto Brune's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 81 years old?

Popular As N/A
Occupation N/A
Age 81 years old
Zodiac Sign Capricorn
Born 10 January, 1901
Birthday 10 January
Birthplace Bloemfontein, Orange Free State
Date of death 1982
Died Place N/A
Nationality United States

We recommend you to check the complete list of Famous People born on 10 January. He is a member of famous mathematician with the age 81 years old group.

Otto Brune Height, Weight & Measurements

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Otto Brune Net Worth

His net worth has been growing significantly in 2023-2024. So, how much is Otto Brune worth at the age of 81 years old? Otto Brune’s income source is mostly from being a successful mathematician. He is from United States. We have estimated Otto Brune's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
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Source of Income mathematician

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Timeline

1901

Otto Walter Heinrich Oscar Brune (10 January 1901 – 1982) undertook some key investigations into network synthesis at the Massachusetts Institute of Technology (MIT) where he graduated in 1929.

His doctoral thesis was supervised by Wilhelm Cauer and Ernst Guillemin, who the latter ascribed to Brune the laying of "the mathematical foundation for modern realization theory".

Brune was born in Bloemfontein, Orange Free State 10 January 1901 and grew up in Kimberley, Cape Colony.

1918

He enrolled in the University of Stellenbosch in 1918, receiving a Bachelor of Science in 1920 and Master of Science in 1921.

1922

He taught German, mathematics, and science at the Potchefstroom Gymnasium, Transvaal in 1922, and lectured in mathematics at the Transvaal University College, Pretoria 1923–1925.

1926

In 1926 Brune moved to the US to attend the Massachusetts Institute of Technology (MIT) under the sponsorship of the General Electric Company, receiving Batchelor and Master's degrees in 1929.

1929

From 1929 to 1930, Brune was involved in artificial lightning tests on the power transmission line from Croton Dam, Michigan as a research assistant at MIT.

1930

From 1930, Brune was a Fellow in Electrical Engineering at MIT with an Austin Research Fellowship.

1933

In 1933, Brune was working on his doctoral thesis entitled, Synthesis of Passive Networks and Cauer suggested that he provide a proof of the necessary and sufficient conditions for the realisability of multi-port impedances.

Cauer himself had found a necessary condition but had failed to prove it to be sufficient.

The goal for researchers then was "to remove the restrictions implicit in the Foster-Cauer realisations and find conditions on Z equivalent to realisability by a network composed of arbitrary interconnections of positive-valued R, C and L."

Brune coined the term positive-real (PR) for that class of analytic functions that are realisable as an electrical network using passive components.

He did not only introduce the mathematical characterization of this function in one complex variable but also demonstrated "the necessity and sufficiency for the realization of driving point functions of lumped, linear, finite, passive, time-invariant and bilateral network. Brune also showed that if the case is limited to scalar PR functions then there was no other theoretical reason that required ideal transformers in the realisation (transformers limit the practical usefulness of the theory), but was unable to show (as others later did) that transformers can always be avoided. The eponymous Brune cycle continued fractions were invented by Brune to facilitate this proof.

The Brune theorem is:

Brune is also responsible for the Brune test for determining the permissibility of interconnecting two-port networks.

For his work, Brune is recognized as one of those who laid the foundation of network analysis by means of mathematics.

For instance, American computer scientist Ernst Guillemin dedicated his book Synthesis of Passive Network to Brune, describing him with these words: "In my opinion the one primarily responsible for establishing a very broad and mathematically rigorous basis for realization theory generally was Otto Brune."

1935

Brune returned to South Africa in 1935.

He became Principal Research Officer at the National Research Laboratories, Pretoria.