63 relations: Adriaan Fokker, Andromeda (constellation), Andromeda Galaxy, Apparent magnitude, Atomic number, Backgammon, Baskin-Robbins, Canaan, Centered decagonal number, Centered pentagonal number, Centered triangular number, Christiaan Huygens, Composite number, Constellation, Constructible polygon, Factorization, Galaxy, Gallium, Haute-Garonne, Ice cream, Ice hockey, International Organization for Standardization, ISO 31, Israelites, Japan, Lucky number, Macedonian alphabet, Masturbation, Mersenne prime, Mertens function, Messier object, National Hockey League, Natural number, Netherlands, New General Catalogue, NGC 31, Perfect number, Phoenix (constellation), Prime number, Prime Pages, Primorial prime, Regular polygon, Repdigit, Self number, Songbook (Nick Hornby book), Spiral galaxy, Steiner tree problem, Supersingular prime (moonshine theory), Thirty-one (card game), Twin prime, ..., Ulysses 31, Wycliffe's Bible, 110 (number), 17 (number), 181 (number), 19 (number), 199 (number), 29 (number), 30 (number), 31 equal temperament, 32 (number), 496 (number), 83 (number). Expand index (13 more) » « Shrink index
Adriaan Daniël Fokker (17 August 1887 – 24 September 1972) was a Dutch physicist and musician.
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy and remains one of the 88 modern constellations.
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.
Backgammon is one of the oldest known board games.
Baskin-Robbins is an American chain of ice cream and cake specialty shop restaurants.
Canaan (Northwest Semitic:; Phoenician: 𐤊𐤍𐤏𐤍 Kenā‘an; Hebrew) was a Semitic-speaking region in the Ancient Near East during the late 2nd millennium BC.
A centered decagonal number is a centered figurate number that represents a decagon with a dot in the center and all other dots surrounding the center dot in successive decagonal layers.
A centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers.
A centered (or centred) triangular number is a centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers.
Christiaan Huygens (Hugenius; 14 April 1629 – 8 July 1695) was a Dutch physicist, mathematician, astronomer and inventor, who is widely regarded as one of the greatest scientists of all time and a major figure in the scientific revolution.
A composite number is a positive integer that can be formed by multiplying together two smaller positive integers.
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
In mathematics, a constructible polygon is a regular polygon that can be constructed with compass and straightedge.
In mathematics, factorization (also factorisation in some forms of British English) or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
Gallium is a chemical element with symbol Ga and atomic number 31.
Haute-Garonne (Nauta Garona; Upper Garonne) is a department in the southwest of France named after the Garonne river.
Ice cream (derived from earlier iced cream or cream ice) is a sweetened frozen food typically eaten as a snack or dessert.
Ice hockey is a contact team sport played on ice, usually in a rink, in which two teams of skaters use their sticks to shoot a vulcanized rubber puck into their opponent's net to score points.
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.
ISO 31 (Quantities and units, International Organization for Standardization, 1992) is a deprecated international standard for the use of physical quantities and units of measurement, and formulas involving them, in scientific and educational documents.
The Israelites (בני ישראל Bnei Yisra'el) were a confederation of Iron Age Semitic-speaking tribes of the ancient Near East, who inhabited a part of Canaan during the tribal and monarchic periods.
Japan (日本; Nippon or Nihon; formally 日本国 or Nihon-koku, lit. "State of Japan") is a sovereign island country in East Asia.
In number theory, a lucky number is a natural number in a set which is generated by a certain "sieve".
The orthography of Macedonian includes an alphabet (Македонска азбука, Makedonska azbuka), which is an adaptation of the Cyrillic script, as well as language-specific conventions of spelling and punctuation.
Masturbation is the sexual stimulation of one's own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm.
In mathematics, a Mersenne prime is a prime number that is one less than a power of two.
In number theory, the Mertens function is defined for all positive integers n as where μ(k) is the Möbius function.
The Messier objects are a set of 110 astronomical objects, of which 103 were included in lists published by French astronomer Charles Messier in 1771 and 1781.
The National Hockey League (NHL; Ligue nationale de hockey—LNH) is a professional ice hockey league in North America, currently comprising 31 teams: 24 in the United States and 7 in Canada.
In mathematics, the natural numbers are those used for counting (as in "there are six coins on the table") and ordering (as in "this is the third largest city in the country").
The Netherlands (Nederland), often referred to as Holland, is a country located mostly in Western Europe with a population of seventeen million.
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888.
NGC 31 is a spiral galaxy located in the Phoenix constellation.
In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself (also known as its aliquot sum).
Phoenix is a minor constellation in the southern sky.
A prime number (or a prime) is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
The Prime Pages is a website about prime numbers maintained by Chris Caldwell at the University of Tennessee at Martin.
In mathematics, primorial primes are prime numbers of the form pn# ± 1, where pn# is the primorial of pn (the product of the first n primes).
In Euclidean geometry, a regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
In recreational mathematics, a repdigit or sometimes monodigit is a natural number composed of repeated instances of the same digit in a positional number system (often implicitly decimal).
A self number, Colombian number or Devlali number is an integer that cannot be written as the sum of any other integer n and the individual digits of n. This property is specific to the base used to represent the integers.
Songbook (published in the United Kingdom as 31 Songs) is a 2002 collection of 26 essays by English writer Nick Hornby about songs and (more often) the particular emotional resonance they carry for him.
Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae(pp. 124–151) and, as such, form part of the Hubble sequence.
Steiner tree problem, or minimum Steiner tree problem, named after Jakob Steiner, is an umbrella term for a class of problems in combinatorial optimization.
In the mathematical branch of moonshine theory, a supersingular prime is a prime number that divides the order of the Monster group M, which is the largest sporadic simple group.
Thirty-one (French Trente et un) is a gambling card game played by two to seven people, where players attempt to assemble a hand which totals 31.
A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair (41, 43).
(Ulysse 31) is a French-Japanese animated television series (1981) that updates the Greek mythology of Odysseus (known as "Ulysses" in Latin) to the 31st century.
Wycliffe's Bible is the name now given to a group of Bible translations into Middle English that were made under the direction of John Wycliffe.
110 (one hundred ten) is the natural number following 109 and preceding 111.
17 (seventeen) is the natural number following 16 and preceding 18.
181 (one hundred eighty-one) is the natural number following 180 and preceding 182.
19 (nineteen) is the natural number following 18 and preceding 20.
199 (one hundred ninety-nine) is the natural number following 198 and preceding 200.
29 (twenty-nine) is the natural number following 28 and preceding 30.
30 (thirty) is the natural number following 29 and preceding 31.
In music, 31 equal temperament, 31-ET, which can also be abbreviated 31-TET, 31-EDO (equal division of the octave), also known as tricesimoprimal, is the tempered scale derived by dividing the octave into 31 equal-sized steps (equal frequency ratios).
32 (thirty-two) is the natural number following 31 and preceding 33.
496 (four hundred ninety-six) is the natural number following 495 and preceding 497.
83 (eighty-three) is the natural number following 82 and preceding 84.