He was known for using what he called the inverse or semi-inverse approach, which applied vector field analysis, to obtain numerous exact solutions of the nonlinear equations of gas dynamics, many of them representing rotational flows of nonuniform total energy.

Neményi's five constant theory for the determination of stress trajectories in plane elastic systems was subsequently proven by later mathematicians.

Hungary at the time, was producing a generation of geniuses in the exact sciences, who would be collectively known as Martians,[4] that included Theodore von Kármán (b.

Stripped of his position when the Nazis came to power, he also had to leave Hungary where anti-Semitic laws had been enacted, and found work for a time in Copenhagen.

In Germany, Neményi belonged to a Socialist party called the ISK, which believed that truth could be arrived at through neo-Kantian Socratic principles.

He briefly held a number of teaching positions in succession and took part in hydraulic research at the State University of Iowa.

[12] Theodore von Kármán wrote of Neményi: "When he came to this country, he went to scientific meetings in an open shirt without a tie and was very much disappointed as I advised him to dress as anyone else.

Neményi pioneered what he called the inverse or semi-inverse approach, which applied vector field analysis, to obtain numerous exact solutions of the nonlinear equations of gas dynamics, many of them representing rotational flows of nonuniform total energy.

However, Cohen notes that Neményi provides the "most thorough and incisive analyses in print of Newton's work on fluids, written by an obvious master of science.

For example, Neményi is the only author I have encountered who has shown the weakness of Newton's "proof" at the end of Book 2, that vortices contradict the laws of astronomy.

In 1951, he published a critique of the entire Encyclopædia Britannica, and suggested improvements for such diverse sections as psychology and psychoanalysis.