Between the 1880s and the 1890s, Karl Pearson proposed the existence of " squirts " ( sources ) and sinks of the flow of aether.

* 1936 – Karl Pearson, English mathematician ( b. 1857 )

In the early 1900s, after the rediscovery of Mendel's work, the gaps in understanding between genetics and evolutionary Darwinism led to vigorous debate among biometricians, such as Walter Weldon and Karl Pearson, and Mendelians, such as Charles Davenport, William Bateson and Wilhelm Johannsen.

It is an estimate of the probability distribution of a continuous variable and was first introduced by Karl Pearson.

It is also said that Karl Pearson, who introduced the term in 1895, derived the name from " historical diagram ".

In The Grammar of Science, Preface to the 2nd Edition, 1900, Karl Pearson wrote, " There are many signs that a sound idealism is surely replacing, as a basis for natural philosophy, the crude materialism of the older physicists.

One common measure of kurtosis, originating with Karl Pearson, is based on a scaled version of the fourth moment of the data or population, but it has been argued that this measure really measures heavy tails, and not peakedness.

In the nineteenth century authors on the general theory included Laplace, Sylvestre Lacroix ( 1816 ), Littrow ( 1833 ), Adolphe Quetelet ( 1853 ), Richard Dedekind ( 1860 ), Helmert ( 1872 ), Hermann Laurent ( 1873 ), Liagre, Didion, and Karl Pearson.

Figures who made significant contributions to psychometrics include Karl Pearson, Henry F. Kaiser, L. L. Thurstone, Georg Rasch, Eugene Galanter, Johnson O ' Connor, Frederic M. Lord, Ledyard R Tucker, Arthur Jensen, and David Andrich.

* March 27 – Karl Pearson, statistician ( d. 1936 )

His findings led him to oppose contemporary Darwinists, most notably Francis Galton and Karl Pearson, who held the occurrence of normal distributed trait variation in populations as proof of gradual genetic variation on which selection could act.

but the statisticians Karl Pearson, et al., in 1899,

They also engaged the work of contemporary philosophers and scientists, such as Karl Pearson, Ernst Mach, Henri Poincaré, William James and John Dewey in an attempt to move, in the words of Boas ' student Robert Lowie, from " a naively metaphysical to an epistemological stage " as a basis for revising the methods and theories of anthropology.

Although O ' Rourke suggests that the first meta-analysis was a paper by Karl Pearson in the BMJ in 1904, in reality Pearson computed a simple average in this study and therefore it cannot be considered a meta-analysis.

PCA was invented in 1901 by Karl Pearson.

* Biometric school: led by Karl Pearson and Walter Weldon, argued vigorously against it, saying that empirical evidence indicated that variation was continuous in most organisms, not discrete as Mendelism predicted.

Gosset acquired that knowledge by study, trial and error and by spending two terms in 1906 – 7 in the biometric laboratory of Karl Pearson.

Karl Pearson developed the coefficient from a similar but slightly different idea by Francis Galton.

Karl Pearson FRS ( 27 March 1857 – 27 April 1936 ) was an influential English mathematician who has been credited with establishing the discipline

Carl Pearson, later known as Karl Pearson ( 1857 – 1936 ), was born to William Pearson and Fanny Smith, who had three children, Aurthur, Carl ( Karl ) and Amy.

Her brother Karl was a very gentle soul, her mother was a quiet woman who said little but who had hard, probing eyes.

Karl was an almost exact copy of his father physically and it was strange to see the expected become the unexpected.

Karl played well and his favorite song was a Schubert lullaby.

The Afroasiatic language family was originally referred to as " Hamito-Semitic ", a term introduced in the 1860s by the German scholar Karl Richard Lepsius.

An early pioneer of radio astronomy was Grote Reber, an amateur astronomer who constructed the first purpose built radio telescope in the late 1930s to follow up on the discovery of radio wavelength emissions from space by Karl Jansky.

The notation was introduced by Karl Weierstrass in 1841.

This was, in fact, Swiss Reformed theologian, Karl Barth's, understanding of the doctrine of election.

* One of the impieties of Tantalus, according to Pindar, was that he offered to his guests the ambrosia of the Deathless Ones, a theft akin to that of Prometheus, Karl Kerenyi noted ( in Heroes of the Greeks ).

Karl Beloch has suggested that there was no Dorian invasion, but rather that the Peloponnesian Dorians were the Achaeans.

The criterion was first proposed by philosopher of science Karl Popper.

He was a poet and a member of the völkisch agitators who, together with journalist Karl Harrer, founded the German Workers ' Party ( DAP ) in Munich with Gottfried Feder and Dietrich Eckart in 1919.

Archduke Charles of Austria, Duke of Teschen (, also known as Karl von Österreich-Teschen ) ( Full name: Karl Ludwig Johann Josef Lorenz of Austria ) ( 5 September 1771 – 30 April 1847 ) was an Austrian field-marshal, the third son of emperor Leopold II and his wife Infanta Maria Luisa of Spain.

Frederick William was the eldest surviving son of Karl Christian of Nassau-Weilburg and Princess Wilhelmine Carolina of Orange-Nassau.

During the first years of the reign of his older brother as Elector, Anton was the third in line, preceded only by his older brother Karl.

The death of Karl ( 8 September 1781 ) make him the next in line to the Electorate as Crown Prince ( de: Kronprinz ); this was because all the pregnancies of the Electress Amalie, except for one daughter, ended in a stillbirth.

The dandy horse, also called Draisienne or laufmaschine, was the first human means of transport to use only two wheels in tandem and was invented by the German Baron Karl von Drais.

It was reserved for his biographer Karl Benrath to justify him, and to represent him as a fervent evangelist and at the same time as a speculative thinker with a passion for free inquiry, always learning and unlearning and arguing out difficult questions with himself in his dialogues, frequently without attaining to any absolute conviction.

The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was not fully appreciated for another four decades.

The event was also commemorated in a propaganda medal designed by the German engraver Karl Goetz.

The term was coined in 1819 by philologist Karl Morgenstern in his university lectures, and later famously reprised by Wilhelm Dilthey, who legitimized it in 1870 and popularized it in 1905.

Kotzebue was born in Weimar to a respected merchant family and was educated at Wilhelm-Ernst-Gymnasium in Weimar, where his uncle, the writer and critic Johann Karl August Musäus was among his teachers.

Sybel was educated at the local Gymnasium, and then at the University of Berlin, where he came under the influences of Friedrich Karl von Savigny and Leopold von Ranke, whose most distinguished pupil he was to become.

He was educated at Repton and Trinity College, Cambridge, where he studied mathematics and became a close friend of Karl Pearson.

He was educated at the academic gymnasium at Vienna and afterwards at the University of Vienna, where he was the favorite pupil of the distinguished Germanist, Karl Müllenhoff ( 1818 – 1884 ).

* Karl Hackethal ( 1901 – 1990 ), politician, educated in Heiligenstadt.

While they certainly wanted a well-respected academic work to fit their acclaimed series on history, Karl Reimer and Solomon Hirzel were also seeking one with literary merit that would be accessible and appeal to the educated public.

He was, like his two younger brothers Patrick and Karl, educated at William Ellis secondary school in north London before studying English literature at Oxford University.

Born in Paris, to Rosa Scheidt and Hermann Klibansky, he was educated at the University of Kiel, University of Hamburg and Ruprecht Karl University of Heidelberg, where he received a Ph. D. in 1928.