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The golden ratio is also an algebraic number and even an algebraic integer. It has minimal polynomial. This quadratic polynomial has two roots, and. The golden ratio is also closely related to the polynomial. which has roots and As the root of a quadratic polynomial, the golden ratio is a constructible number.
The engine is in the left background with a shield structure in the mid/foreground. A nuclear thermal rocket ( NTR) is a type of thermal rocket where the heat from a nuclear reaction replaces the chemical energy of the propellants in a chemical rocket. In an NTR, a working fluid, usually liquid hydrogen, is heated to a high temperature in a ...
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A gratuity (often called a tip) is a sum of money customarily given by a customer to certain service sector workers such as hospitality for the service they have performed, in addition to the basic price of the service.
Fibonacci sequence. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes ...
AIM-9 Sidewinder. The AIM-9 Sidewinder ("AIM" for "Air Intercept Missile") is a short-range air-to-air missile. Entering service with the United States Navy in 1956 and the Air Force in 1964, the AIM-9 is one of the oldest, cheapest, and most successful air-to-air missiles. [ 3] Its latest variants remain standard equipment in most Western ...
Stonewall riots. Part of events leading to gay liberation. The only known photograph taken during the first night of the riots, by freelance photographer Joseph Ambrosini, shows gay youth scuffling with police. [ 1 ] Date. June 28 – July 3, 1969 (1969-06-28– 1969-07-03)[ 2 ] Location. Stonewall Inn, New York City.
English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in early medieval England on the island of Great Britain. [ 4][ 5][ 6] The namesake of the language is the Angles, one of the ancient Germanic peoples that migrated to Britain.