Search Results for: Mathematical equipment
presented the earliest critique and reform of the ptolemaic model, first stated wilson's theorem in number theory, pioneered analytic geometry, formulated and solved alhazen's problem geometrically, developed and proved the earliest general formula for infinitesimal and integral calculus using mathematical
variously translated as doubts concerning ptolemy or aporias against ptolemy, written between and , ibn al-haytham criticized many of ptolemy 's works, including the almagest, planetary hypotheses, and optics, pointing out various contradictions he found in these works. he considered that some of the mathematical...
https://www.newworldencyclopedia.org/entry/Ibn_al-Haytham
pythagoras' perspective, the ionians' prime elements, such as thales' "water" and anaximander's "indefinite," were beings that were equally determined, and they did not explain why and how the world was orderly structured and maintained its rhythm and harmony . according to pythagoras, " number " or mathematical
principle was that which gives order, harmony, rhythm, and beauty to the world. this harmony keeps a balance both in the cosmos and in the soul. for pythagoras, "numbers" are not abstract concepts but embodied entities manifested as norms, cosmos, and sensible natural objects. the mathematical order...
https://www.newworldencyclopedia.org/entry/Greek_philosophy,_Ancient
open-access repository of electronic preprints (known as e-prints ) approved for posting after moderation, but not full peer review . it consists of scientific papers in the fields of mathematics , physics , astronomy , electrical engineering , computer science , quantitative biology , statistics , mathematical
irrevocable license to distribute them. controversy[ edit ] while arxiv does contain some dubious e-prints, such as those claiming to refute famous theorems or proving famous conjectures such as fermat's last theorem using only high-school mathematics, a article which appeared in notices of the american mathematical...
https://en.wikipedia.org/wiki/ArXiv
signal to noise ratio, the signal should be above a certain threshold. [ ] thus, crosby's work supplemented armstrong's paper in . however, fm radio, which threatened to destroy am radio, proved to be too revolutionary for rca, armstrong's then employer. armstrong was asked to remove his transmitting equipment
from rca's empire state building offices, in order to make way for television equipment after his demonstrations of the technology. in , armstrong financed construction of the first fm radio station, w xmn, a kilowatt broadcaster in alpine, new jersey. the signal (at mhz) could be heard clearly miles...
https://www.newworldencyclopedia.org/entry/Edwin_Howard_Armstrong