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7 godz. temu · 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 ...
7 godz. temu · Sirius is the brightest star in the night sky.Its name is derived from the Greek word Σείριος (Latin script: Seirios), meaning lit. 'glowing' or 'scorching'. The star is designated α Canis Majoris, Latinized to Alpha Canis Majoris, and abbreviated α CMa or Alpha CMa.With a visual apparent magnitude of −1.46, Sirius is almost twice as bright as Canopus, the next brightest star.
7 godz. temu · Columbus Circle is a traffic circle and heavily trafficked intersection in the New York City borough of Manhattan, located at the intersection of Eighth Avenue, Broadway, Central Park South (West 59th Street), and Central Park West, at the southwest corner of Central Park.The circle is the point from which official highway distances from New York City are measured, as well as the center of the ...
1 dzień temu · Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance. The topic of quantum entanglement is at the heart of the disparity between ...
1 dzień temu · The Canary Islands (/ k ə ˈ n ɛər i /, Spanish: Canarias, Spanish: [kaˈnaɾjas]), also known informally as the Canaries, are a Spanish region, autonomous community and archipelago in the Atlantic Ocean.At their closest point to the African mainland, they are 100 kilometres (62 miles) west of Morocco and the Western Sahara.They are the southernmost of the autonomous communities of Spain.
7 godz. temu · Definition and basic operations Various complex numbers depicted in the complex plane. A complex number is an expression of the form a + bi, where a and b are real numbers, and i is an abstract symbol, the so-called imaginary unit, whose meaning will be explained further below.For example, 2 + 3i is a complex number. For a complex number a + bi, the real number a is called its real part, and ...
1 dzień temu · Educational research. Educational technology (commonly abbreviated as edutech, or edtech) is the combined use of computer hardware, software, and educational theory and practice to facilitate learning. [1] [2] When referred to with its abbreviation, "EdTech", it often refers to the industry of companies that create educational technology.
