Results 11 to 20 of about 45,203 (25)

The Origins of Complex Geometry in the 19th Century [PDF]

open access: yesarXiv, 2015
This paper gives an overview of several key innovations in the 19th century which led to complex geometry in the 20th century. This includes the creation of the complex plane, the work of Abel on addition theorems for generalized elliptic integrals, the theory of elliptic functions, holomorphic functions, and the creation of Riemann surfaces by Riemann
arxiv  

Einstein's Patents and Inventions [PDF]

open access: yesarXiv, 2017
Times magazine selected Albert Einstein, the German born Jewish Scientist as the person of the 20th century. Undoubtedly, 20th century was the age of science and Einstein's contributions in unraveling mysteries of nature was unparalleled. However, few are aware that Einstein was also a great inventor.
arxiv  

From Poland to "Petersburg": The Banach-Tarski Paradox in Bely's Modernist Novel [PDF]

open access: yesarXiv, 2017
Andrei Bely's novel "Petersburg," first published in 1913, was declared by Vladimir Nabokov one of the four greatest masterpieces of 20th-century prose. The Banach-Tarski Paradox, published in 1924, is one of the most striking and well-known results in 20th-century mathematics.
arxiv  

The Pendulum in the 21st Century--Relic or Trendsetter [PDF]

open access: yesarXiv, 2002
When identifying instruments that have had great influence on the history of physics, none comes to mind more quickly than the pendulum. Though 'birthed' by Galileo in the 16th century, and in some respects nearly 'dead' by the middle of the 20th century; the pendulum experienced 'rebirth' by becoming an archetype of chaos.
arxiv  

Roman Jackiw: A Beacon in a Golden Period of Theoretical Physics [PDF]

open access: yesarXiv, 2020
This text offers reminiscences of my personal interactions with Roman Jackiw as a way of looking back at the very fertile period in theoretical physics in the last quarter of the 20th century.
arxiv  

Average word length dynamics as indicator of cultural changes in society [PDF]

open access: yesSocial Evolution & History. Volume 14, number 2, p. 153-175 (2015), 2012
Dynamics of average length of words in Russian and English is analysed in the article. Words belonging to the diachronic text corpus Google Books Ngram and dated back to the last two centuries are studied. It was found out that average word length slightly increased in the 19th century, and then it was growing rapidly most of the 20th century and ...
arxiv  

The unexpected resurgence of Weyl geometry in late 20-th century physics [PDF]

open access: yesarXiv, 2017
Weyl's original scale geometry of 1918 ("purely infinitesimal geometry") was withdrawn by its author from physical theorizing in the early 1920s. It had a comeback in the last third of the 20th century in different contexts: scalar tensor theories of gravity, foundations of gravity, foundations of quantum mechanics, elementary particle physics, and ...
arxiv  

Soft Condensed Matter (Materia Condensata Soffice) [PDF]

open access: yesarXiv, 2004
This article was written for a multi-volume History of Science, and published in Italian translation: Storia della Scienza, Volume IX, La Grande Scienza, pp 645-656 (published by Istituto della Enciclopedia Italiana, Fondata da Giovanni Treccani, 2003). In it, I describe the evolution of soft matter physics as a discipline during the 20th century.
arxiv  

The road not considered ... the question of photon mass [PDF]

open access: yesPhys.Teacher 47 (2005) 90, 2006
We consider possibilities of modification of Maxwell's equations of electrodynamics that could have automatically led to a massive photon. Why weren't such questions considered at the time when quantum theory was introduced at the beginning of the 20th century? We try to answer this question.
arxiv  

Exploring Mount Neverest [PDF]

open access: yesarXiv, 2010
The problem `Exploring Mount Neverest' by Henry Ernest Dudeney is solved. Dudeney formulated the problem in the beginning of the 20th century and gave a non-optimal solution (without estimating the non-optimality).
arxiv  

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