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4 天前 · Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, electric and magnetic circuits. The equations provide a mathematical model for electric, optical, and radio technologies, such ...
1 天前 · Franklin Delano Roosevelt[a] (January 30, 1882 – April 12, 1945), commonly known by his initials FDR, was an American statesman and politician who served as the 32nd president of the United States from 1933 until his death in 1945. He was a member of the Democratic Party and is the only U.S. president to have served more than two terms. His ...
2024年5月20日 · This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet. A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database.[1] IANA also oversees the approval process for new proposed ...
2 天前 · Titanic is a 1997 American epic romantic disaster film directed, written, produced, and co-edited by James Cameron.Incorporating both historical and fictionalized aspects, it is based on accounts of the sinking of RMS Titanic in 1912.Leonardo DiCaprio and Kate Winslet star as members of different social classes who fall in love during the ship's maiden voyage.
2 天前 · Great Expectations at Wikisource. Great Expectations is the thirteenth novel by Charles Dickens and his penultimate completed novel. It depicts the education of an orphan nicknamed Pip (the book is a Bildungsroman, a coming-of-age story). It is Dickens' second novel, after David Copperfield, to be fully narrated in the first person.
1 天前 · The Iowa class was a class of six fast battleships ordered by the United States Navy in 1939 and 1940. They were initially intended to intercept fast capital ships such as the Japanese Kongō class and serve as the "fast wing" of the U.S. battle line. [3] [4] The Iowa class was designed to meet the Second London Naval Treaty 's "escalator ...
1 天前 · e. William Howard Taft (September 15, 1857 – March 8, 1930) was the 27th president of the United States, serving from 1909 to 1913, and the tenth chief justice of the United States, serving from 1921 to 1930, the only person to have held both offices. Taft was elected president in 1908, the chosen successor of Theodore Roosevelt, but was ...
