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Fifty
50 (fifty) is the natural number following 49 and preceding 51. In mathematics Fifty is the smallest number that is the sum of two non-zero square numbers in two distinct ways: 50 = 12 + 72 = 52 + 52. It is also the sum of three squares, 50 = 32 + 42 + 52, and the sum of four squares, 50 = 62 + 32 + 22 + 12. It is a Harshad number. 50 is a Stirling number of the first kind: \leftright= 50 and also a Narayana number: \operatorname(6, 3) = \operatorname(6, 4) = 50 There is no solution to the equation φ(''x'') = 50, making 50 a nontotient. Nor is there a solution to the equation ''x'' − φ(''x'') = 50, making 50 a noncototient. In science *The atomic number of tin *The fifth magic number in nuclear physics In religion *In Kabbalah, there are 50 Gates of Wisdom (or Understanding) and 50 Gates of Impurity *The traditional number of years in a jubilee period.Leviticus 25:10 *The Christian Feast of Pentecost takes place on the 50th day of the Easter Season *The Jewish Pent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shavuoth
(''Ḥag HaShavuot'' or ''Shavuos'') , nickname = English: "Feast of Weeks" , observedby = Jews and Samaritans , type = Jewish and Samaritan , begins = 6th day of Sivan (or the Sunday following the 6th day of Sivan in Karaite Judaism) , ends = 7th (in Israel: 6th) day of Sivan , celebrations = Festive meals. All-night Torah study. Recital of Akdamut liturgical poem in Ashkenazic synagogues. Reading of the Book of Ruth. Eating of dairy products. Decoration of homes and synagogues with greenery (Orach Chayim494. , significance = One of the Three Pilgrimage Festivals. Celebrates the revelation of the Five Books of the Torah by God to Moses and to the Israelites at Mount Sinai, 49 days (seven weeks) after the Exodus from ancient Egypt. Commemorates the wheat harvesting in the Land of Israel. Culmination of the 49 days of the Counting of the Omer. , relatedto = Passover, which precedes Shavuot , date = , date = , date = , da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
50 (number)
50 (fifty) is the natural number following 49 (number), 49 and preceding 51 (number), 51. In mathematics Fifty is the smallest number that is the sum of two non-zero square numbers in two distinct ways: 50 = 12 + 72 = 52 + 52. It is also the sum of three squares, 50 = 32 + 42 + 52, and the sum of four squares, 50 = 62 + 32 + 22 + 12. It is a Harshad number. 50 is a Stirling number of the first kind: \left[\right] = 50 and also a Narayana number: \operatorname(6, 3) = \operatorname(6, 4) = 50 There is no solution to the equation Euler's totient function, φ(''x'') = 50, making 50 a nontotient. Nor is there a solution to the equation ''x'' − φ(''x'') = 50, making 50 a noncototient. In science *The atomic number of tin *The fifth magic number (physics), magic number in nuclear physics In religion *In Kabbalah, there are 50 Gates of Wisdom (or Understanding) and 50 Gates of Impurity *The traditional number of years in a Jubilee (biblical), jubilee period.Leviticus 25:10 *Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentecost
Pentecost (also called Whit Sunday, Whitsunday or Whitsun) is a Christianity, Christian holiday which takes place on the 50th day (the seventh Sunday) after Easter Sunday. It commemorates the descent of the Holy Spirit upon the Apostles in the New Testament, Apostles and other followers of Jesus Christ while they were in Jerusalem during the Second Temple Period, Jerusalem celebrating the Feast of Weeks, as described in the Acts of the Apostles (Acts 2:1–31). In Western Christianity, Pentecost is celebrated on the 50th day (the seventh Sunday) after Easter Sunday. In the United Kingdom, traditionally the next day, Whit Monday, was (until 1970) also a public holiday. (Since 1971, by statute, the last Monday in May has been a Bank Holiday). The Monday after Pentecost is a legal holiday in many European countries. In Eastern Christianity, Pentecost can also refer to the entire fifty days of Easter through Pentecost inclusive; hence the book containing the liturgical texts is calle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
51 (number)
51 (fifty-one) is the natural number following 50 and preceding 52. In mathematics Fifty-one is * a pentagonal number as well as a centered pentagonal number and an 18-gonal number *the 6th Motzkin number, telling the number of ways to draw non-intersecting chords between any six points on a circle's boundary, no matter where the points may be located on the boundary. *a Perrin number., coming after 22, 29, 39 in the sequence (and the sum of the first two) * a Størmer number, since the greatest prime factor of 512 + 1 = 2602 is 1301, which is substantially more than 51 twice. *There are 51 different cyclic Gilbreath permutations on 10 elements, and therefore there are 51 different real periodic points of order 10 on the Mandelbrot set.. *Since 51 is the product of the distinct Fermat primes 3 and 17, a regular polygon with 51 sides is constructible with compass and straightedge, the angle is constructible, and the number cos is expressible in terms of square roots. In ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedding Anniversary
A wedding anniversary is the anniversary of the date a wedding took place. Couples may take the occasion to celebrate their relationship, either privately or with a larger party. Special celebrations and gifts are often given for particular anniversary milestones (e.g. 10, 15, 20, 25 years). In some cultures, traditional names exist for milestone anniversaries; for instance, fifty years of marriage may be known as a "golden wedding anniversary", "golden anniversary" or "golden wedding". Recognition Celebrating wedding anniversaries as ''gold'' (50 years) or ''silver'' (25 years) is documented in Germanic countries since the 1500s. In the twentieth century, commercialism led to the celebration of more anniversaries according to a list of predetermined gifts. In some parts of the world, couples can receive special recognition from government officials for particular milestones. In the Commonwealth realms, one can receive a message from the monarch for 60th, 65th, and 70th weddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Square Numbers
In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals and can be written as . The usual notation for the square of a number is not the product , but the equivalent exponentiation Exponentiation is a mathematical operation, written as , involving two numbers, the '' base'' and the ''exponent'' or ''power'' , and pronounced as " (raised) to the (power of) ". When is a positive integer, exponentiation corresponds to re ... , usually pronounced as " squared". The name ''square'' number comes from the name of the shape. The unit of area is defined as the area of a unit square (). Hence, a square with side length has area . If a square number is represented by ''n'' points, the points can be arranged in rows as a square each side of which has the same number of points as the square root of ''n''; thus, square numbers ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Highways Numbered 50
The following highways are numbered 50: International * European route E50 Brazil * BR-050 Canada * Alberta Highway 50 * Manitoba Highway 50 * Newfoundland and Labrador Route 50 * Ontario Highway 50 (Also referred to as Peel Regional Road 50 and York Regional Road 24) * Quebec Autoroute 50 China * G50 Shanghai–Chongqing Expressway, G50 Expressway Czech Republic * I/50 Highway (Czech Republic), I/50 Highway; Czech: :cz:Silnice I/50, Silnice I/50 Finland * Ring III (Kt 50) India * , a National Highway between Pune and Nashik cities Ireland * M50 motorway (Ireland) Israel * Begin Expressway Highway 50 (Israel). A freeway in Jerusalem, Israel. Italy * Autostrada A50 Japan * Japan National Route 50 Jordan * Korea, South * Yeongdong Expressway * National Route 50 (South Korea), National Route 50 Malaysia * Malaysia Federal Route 50 New Zealand * New Zealand State Highway 50 Poland * National road 50 (Poland), DK50, a National roads in Poland, national road funct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percentage
In mathematics, a percentage (from la, per centum, "by a hundred") is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number (pure number); it has no unit of measurement. Examples For example, 45% (read as "forty-five per cent") is equal to the fraction , the ratio 45:55 (or 45:100 when comparing to the total rather than the other portion), or 0.45. Percentages are often used to express a proportionate part of a total. (Similarly, one can also express a number as a fraction of 1,000, using the term "per mille" or the symbol "".) Example 1 If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. Example 2 An increase of $0.15 on a price of $2.50 is an increase by a fraction of = 0.06. Expressed as a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Length
The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light. A system with a shorter focal length bends the rays more sharply, bringing them to a focus in a shorter distance or diverging them more quickly. For the special case of a thin lens in air, a positive focal length is the distance over which initially collimated (parallel) rays are brought to a focus, or alternatively a negative focal length indicates how far in front of the lens a point source must be located to form a collimated beam. For more general optical systems, the focal length has no intuitive meaning; it is simply the inverse of the system's optical power. In most photography and all telescopy, where the subject is essentially infinitely far away, longer focal length (lower opti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
50 BMG
The .50 Browning Machine Gun (.50 BMG, 12.7×99mm NATO and designated as the 50 Browning by the C.I.P.) is a caliber cartridge developed for the M2 Browning heavy machine gun in the late 1910s, entering official service in 1921. Under STANAG 4383, it is a standard service cartridge for NATO forces as well as many non-NATO countries. The cartridge itself has been made in many variants: multiple generations of regular ball, tracer, armor-piercing (AP), incendiary, and saboted sub-caliber rounds. The rounds intended for machine guns are made into a continuous belt using metallic links. The .50 BMG cartridge is also used in anti-materiel rifles. A wide variety of ammunition is available, and the availability of match grade ammunition has increased the usefulness of .50 caliber rifles by allowing more accurate fire than lower quality rounds. History In response to the need for new anti-aircraft weaponry during World War I, John Browning developed the .50 BMG. He wanted the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Slang Terms For Police Officers
Many police-related slang terms exist for police officers. These terms are rarely used by the police themselves. Police services also have their own internal slang and jargon; some of it is relatively widespread geographically and some very localized. A ;Alphabet Agency/Alphabet Soup :Used in the United States to denote the multiple federal agencies that are commonly referred to by their initials such as the FBI, ATF, and DEA. ;Amcalar :A Turkish language word meaning "uncles". ;Anda :An Urdu language word meaning egg, for the pure-white uniform of traffic police in urban Pakistani areas like Karachi. ;Aynasız :A Turkish phrase derived from word ''ayna'', referring to 'those without a mirror', a pejorative description of police lacking honor and having too much shame to look at themselves in the mirror. Often used by Turkish and Middle Eastern immigrants, particularly to describe police who will beat or assault them sans witnesses. Also, the first Renaults to enter the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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