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COVID-19 pandemic. v. t. e. On July 13, 2024, Donald Trump, a former president of the United States who at that time had been the presumptive nominee of the Republican Party in the 2024 presidential election, was grazed on the right ear in an assassination attempt while speaking at an open-air campaign rally near Butler, Pennsylvania. [ 5][ 6 ...
Kamala Harris. Kamala Devi Harris ( / ˈkɑːmələ ˈdeɪvi / ⓘ KAH-mə-lə DAY-vee; [ 2] born October 20, 1964) is an American politician and attorney who is the 49th and current vice president of the United States since 2021 under President Joe Biden.
Four-dimensional space ( 4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.
A hierarchy of 4D point groups and some subgroups. Vertical positioning is grouped by order. Blue, green, and pink colors show reflectional, hybrid, and rotational groups. In geometry, a point group in four dimensions is an isometry group in four dimensions that leaves the origin fixed, or correspondingly, an isometry group of a 3-sphere .
Katie Ledecky. Kathleen Genevieve Ledecky ( / ləˈdɛki / lə-DEK-ee; born March 17, 1997) [ 6] is an American competitive swimmer. She has won nine Olympic gold medals and 21 world championship gold medals, the most in history for a female swimmer. With 14 medals and 9 gold medals, she is also the most decorated American woman, most decorated ...
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
N. = 1 supergravity. In supersymmetry, 4D supergravity is the theory of supergravity in four dimensions with a single supercharge. It contains exactly one supergravity multiplet, consisting of a graviton and a gravitino, but can also have an arbitrary number of chiral and vector supermultiplets, with supersymmetry imposing stringent constraints ...
e. The 2024 Bangladesh quota reform movement, also known as July Revolution, [ d] was a series of anti-government [ e] and pro- democracy [ f] protests in Bangladesh, spearheaded primarily by university students. Initially focused on restructuring quota-based systems for government job recruitment, the movement expanded against what many ...