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Over a variable name, means that the variable represents a vector, in a context where ordinary variables represent scalars; for example, . Boldface ( v {\displaystyle \mathbf {v} } ) or a circumflex ( v ^ {\displaystyle {\hat {v}}} ) are often used for the same purpose.
Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
The Regeneron International Science and Engineering Fair (ISEF) is an annual science fair in the United States. [1] It is owned and administered by the Society for Science, [2] a 501(c)(3) non-profit organization based in Washington, D.C. [3] Each May, more than 1800 students from roughly 75 countries and territories compete in the fair for scholarships, tuition grants, internships, scientific ...
Science is a strict systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study ...
A kylix depicting Silenus having sex with a fawn, dated after 500 BC. Roman oil lamp dating from 1st–3rd century AD depicting a zoophilic act. The historical perspective on zoophilia and bestiality varies greatly, from the prehistoric era, where depictions of bestiality appear in European rock art, [6] to the Middle Ages, where bestiality was met with execution.
Solidly based upon the New Deal tradition in its advocacy of wide-ranging social legislation, the Fair Deal differed enough to claim a separate identity. The depression did not return after the war and the Fair Deal faced prosperity and an optimistic future. The Fair Dealers thought in terms of abundance rather than depression scarcity.
Compared to other primates, including large examples such as the gorilla, the human penis is thickest, both in absolute terms and relative to the rest of the body. Most human penis growth occurs in two stages: the first between infancy and the age of five; and then between about one year after the onset of puberty and, at the latest ...
A femboy. Femboy (/ ˈ f ɛ m b ɔɪ / ⓘ) is a slang term that refers to males, usually cisgender, who express themselves with traditionally feminine behaviours, or—especially in the variant spelling femboi—to LGBTQ people of any gender identity who affect a "soft" masculine look. [1]