Some context: Irving Fisher (February 27, 1867 - April 29, 1947) was an American economist, statistician, inventor, and Progressive social campaigner. He was one of the earliest American neoclassical economists, though his later work on debt deflation has been embraced by the Post-Keynesian school. Joseph Schumpeter described him as "the greatest economist the United States has ever produced", an assessment later repeated by James Tobin and Milton Friedman. Fisher made important contributions to utility theory and general equilibrium.
Fisher was born in Saugerties, New York. His father was a teacher and a Congregational minister, who raised his son to believe he must be a useful member of society. Despite being raised in religious family, he later on became an atheist. As a child, he had remarkable mathematical ability and a flair for invention. A week after he was admitted to Yale College his father died, at age 53. Irving then supported his mother, brother, and himself, mainly by tutoring. He graduated first in his class with a B.A degree in 1888, having also been elected as a member of the Skull and Bones society.  In 1891, Fisher received the first Ph.D. in economics granted by Yale. His faculty advisors were the theoretical physicist Willard Gibbs and the sociologist William Graham Sumner. As a student, Fisher had shown particular talent and inclination for mathematics, but he found that economics offered greater scope for his ambition and social concerns. His thesis, published by Yale in 1892 as Mathematical Investigations in the Theory of Value and Prices, was a rigorous development of the theory of general equilibrium. When he began writing the thesis, Fisher had not been aware that Leon Walras and his continental European disciples had already covered similar ground. Nonetheless, Fisher's work was a very significant contribution and was immediately recognized and praised as first-rate by such European masters as Francis Edgeworth.  After graduating from Yale, Fisher studied in Berlin and Paris. From 1890 onward, he remained at Yale, first as a tutor, then after 1898 as a professor of political economy, and after 1935 as professor emeritus. He edited the Yale Review from 1896 to 1910 and was active in many learned societies, institutes, and welfare organizations. He was president of the American Economic Association in 1918. The American Mathematical Society selected him as its Gibbs Lecturer for 1929. A leading early proponent of econometrics, in 1930 he founded, with Ragnar Frisch and Charles F. Roos the Econometric Society, of which he was the first president.  Fisher was a prolific writer, producing journalism as well as technical books and articles, and addressing various social issues surrounding of the First World War, the prosperous 1920s and the depressed 1930s. He made several practical inventions, the most notable of which was an "index visible filing system" which he patented in 1913 and sold to Kardex Rand (later Remington Rand) in 1925. This, and his subsequent stock investments, made him a wealthy man until his personal finances were badly hit by the Crash of 1929.  Fisher was also an active social and health campaigner, as well as an advocate of vegetarianism, Prohibition, and eugenics. He died in New York City in 1947, at the age of 80.
How did he do as a professor?
A: He edited the Yale Review from 1896 to 1910 and was active in many learned societies, institutes, and welfare organizations.

Some context: "Good Vibrations" is a song composed by Brian Wilson with words by Mike Love for the American rock band the Beach Boys, of which both were members. Released on October 10, 1966, the single was an immediate critical and commercial hit, topping record charts in several countries including the US and UK. Characterized by its complex soundscapes, episodic structure, and subversions of pop music formula, it was the costliest single ever recorded at the time of its release. "Good Vibrations" later became widely acclaimed as one of the greatest masterpieces of rock music.
Although the song does not technically contain a theremin, "Good Vibrations" is the most frequently cited example of the instrument's use in pop music. Upon release, the single prompted an unexpected revival in theremins and increased the awareness of analog synthesizers. The notion that "Good Vibrations" features a theremin has been erroneously repeated in books, CD liner notes, and quotes from the recording's participants. While having a similar sound, a theremin is an aerial-controlled instrument, unlike the Electro-Theremin.  When the Beach Boys needed to reproduce its sound onstage, Wilson first requested that Tanner play the Electro-Theremin live with the group, but he declined due to commitments. Tanner recalls saying to Wilson, "I've got the wrong sort of hair to be on stage with you fellas", to which Wilson replied: "We'll give you a Prince Valiant wig." The Beach Boys then requested the services of Walter Sear, who asked Bob Moog to design a ribbon controller, since the group was used to playing the fretboards of a guitar. Sears remembers marking fretboard-like lines on the ribbon "so they could play the damn thing." Moog began manufacturing his own models of theremins. He later noted: "The pop record scene cleaned us out of our stock which we expected to last through Christmas."  In Steven M. Martin's 1993 documentary Theremin: An Electronic Odyssey, in which Wilson makes an appearance, it was revealed that the attention being paid to the theremin due to "Good Vibrations" caused Russian authorities to exile its inventor, Leon Theremin.
what is theremin?
A:
the single prompted an unexpected revival in theremins and increased the awareness of analog synthesizers.