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2 天前 · The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.The number π appears in many formulae across mathematics and physics.It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although fractions such as are commonly used to ...
1 天前 · Etymology The word psychopathy is a joining of the Greek words psyche (ψυχή) "soul" and pathos (πάθος) "suffering, feeling". The first documented use is from 1847 in Germany as psychopatisch, and the noun psychopath has been traced to 1885. In medicine, patho-has a more specific meaning of disease (Thus pathology has meant the study of disease since 1610, and psychopathology has meant ...
1 天前 · William Shakespeare. William Shakespeare ( c. 23 [a] April 1564 – 23 April 1616) [b] was an English playwright, poet, and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. [4] [5] [6] He is often called England's national poet and the " Bard of Avon " (or simply "the Bard").
1 天前 · A Doctor of Philosophy ( PhD, Ph.D., or DPhil; Latin: philosophiae doctor or doctor philosophiae) is the most common degree at the highest academic level, awarded following a course of study and research. The degree is abbreviated PhD and sometimes, especially in the U.S., as Ph.D. It is derived from the Latin Philosophiae Doctor, pronounced as ...
3 天前 · Antoni Gaudí i Cornet [3] ( / ɡaʊˈdi / gow-DEE, / ˈɡaʊdi / GOW-dee, Catalan: [ənˈtɔni ɣəwˈði]; [4] 25 June 1852 – 10 June 1926) was a Catalan architect and designer from Spain, known as the greatest exponent of Catalan Modernism. [5] Gaudí's works have a highly individualized, sui generis style. Most are located in Barcelona ...
3 天前 · Alan Wolf Arkin (March 26, 1934 – June 29, 2023) was an American actor and filmmaker. In a career spanning seven decades, he received numerous accolades, including an Academy Award, a BAFTA Award, a Golden Globe Award, and a Tony Award as well as nominations for six Emmy Awards. Arkin performed in the sketch comedy group The Second City ...
1 天前 · In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe. The inflationary epoch is believed to have lasted from 10 −36 seconds to between 10 −33 and 10 −32 seconds after the Big Bang. Following the inflationary period, the universe continued to ...
