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the free encyclopedia that anyone can edit. Leucippus was a Greek philosopher of the 5th century BCE. He is credited with founding atomism, with his student Democritus. Leucippus divided the world into two entities: atoms, indivisible particles that make up all things, and the void, the nothingness between the atoms.
Shapiro's lemma. In mathematics, especially in the areas of abstract algebra dealing with group cohomology or relative homological algebra, Shapiro's lemma, also known as the Eckmann–Shapiro lemma, relates extensions of modules over one ring to extensions over another, especially the group ring of a group and of a subgroup.
The Shapiro reaction or tosylhydrazone decomposition is an organic reaction in which a ketone or aldehyde is converted to an alkene through an intermediate hydrazone in the presence of 2 equivalents of organolithium reagent. [1] [2] [3] The reaction was discovered by Robert H. Shapiro in 1967. [4] The Shapiro reaction was used in the Nicolaou ...
the-scorpions .com. Scorpions are a German hard rock band formed in Hanover in 1965 by guitarist Rudolf Schenker. [3] The lineup from 1978 to 1992 was the most successful incarnation of the group, and included Klaus Meine (vocals), Rudolf Schenker (rhythm guitar), Matthias Jabs (lead guitar), Francis Buchholz (bass), and Herman Rarebell (drums).
Three of NATO's members are nuclear weapons states: France, the United Kingdom, and the United States. NATO has 12 original founding member states. Three more members joined between 1952 and 1955, and a fourth joined in 1982. Since the end of the Cold War, NATO has added 16 more members from 1999 to 2024. [2]
Verisign.com Registry. The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet. Created in the first group of Internet domains at the beginning of 1985, its name is derived from the word commercial, [1] indicating its original intended purpose for subdomains registered by commercial organizations.
The (International) Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear code words for communicating the letters of the Roman alphabet. Technically a radiotelephonic spelling alphabet, it goes by various names, including NATO spelling alphabet, ICAO phonetic alphabet and ICAO ...
Meir Shapiro. Yehuda Meir Shapiro ( Polish: Majer Jehuda Szapira; 3 March 1887 – 27 October 1933) was a prominent Polish Hasidic rabbi and rosh yeshiva, also known as the Lubliner Rav. He is noted for his promotion of the Daf Yomi study program in 1923, and establishing the Chachmei Lublin Yeshiva in 1930. During the years 1922 to 1927 ...