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  1. de.wikipedia.org › wiki › PhosphorPhosphorWikipedia

    Há 3 dias · Auf Bitten Leibniz’ besuchte Kraft Christiaan Huygens in Holland, bevor er die Herstellung von Phosphor vor Robert Boyle in England demonstrierte. Brand selbst war 1678 und 1679 bei Leibniz in Hannover, um Phosphor aus bereitgestelltem Soldaten-Urin zu destillieren.

  2. it.wikipedia.org › wiki › Pi_grecoPi greco - Wikipedia

    Há 2 dias · Costante di Gel'fond, Costanti zeta. Il rapporto tra la lunghezza della circonferenza di una ruota e il suo diametro è π. Il pi greco è una costante matematica, indicata con la lettera greca ( pi ), scelta in quanto iniziale di περιφέρεια ( perifereia ), circonferenza in greco.

  3. Há 1 dia · localisation. modifier. Les Internationaux de France de tennis 2024 se déroulent du 26 mai au 9 juin 2024 au stade Roland-Garros dans le 16e arrondissement de Paris. Il s'agit de la 123e édition du tournoi de tennis professionnel des Internationaux de France de tennis .

  4. Há 5 dias · According to Huygens Principle, every point along a wavefront can be treated as the source of a spherical wavelet. The Huygens–Fresnel principle, called after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel is a process of summary referred to difficulties of wave proliferation both in the far-field boundary and in near-field diffraction and also appearance.

  5. Há 5 dias · 混沌理论 Chaos theory 是数学的一个分支,主要研究动力系统的混沌状态,其表面无序和不规则的随机状态往往受到对初始条件高度敏感的确定性规律的支配。. [1] [2] 混沌理论是一个跨学科的理论,表明,在混沌复杂系统的明显随机性,有潜在的模式,相互联系 ...

  6. Há 2 dias · The United States is a leader in the development of artificial intelligence technology and has maintained a space program since the late 1950s, with plans for long-term habitation of the Moon. [309] [310] In 2022, the United States was the country with the second-highest number of published scientific papers. [311]

  7. en.wikipedia.org › wiki › RussiaRussia - Wikipedia

    Há 2 dias · RU. Internet TLD. .ru. .рф. Russia, [b] or the Russian Federation, [c] is a country spanning Eastern Europe and North Asia. It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. [d] It is the world's ninth-most populous country and Europe's most populous country.