Number 6

A page of the Numeropedia - the Special Encyclopedia of Numbers

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 Number 6 in Flags     Number 6 in Math      Number 6 in Sports     Number 6 


[Astronomy]   The civil twilight is when the center of the (refracted) Sun is 6o below the horizon.


[Biology]  An animal/insect has an even number of legs: 2, 4, 6, 8, 10 or more. Animals/insects having 6 legs: flies, butterflies, moths, ants, beetles, wasps…


[Biology]  A caterpillar has 16 legs before it emerges from its chrysalis to become a butterfly or moth, which has only 6 legs.


[Biology]  There might be the 6th sense, as popular belief, especially for animals.


[Calendar]  June’s birthstone is pearl, alexandrite or moonstone (for wealth). 

 June’s flower is rose or honeysuckle.

June’s full moon is named “Strawberry Moon”.


[Calendar]  Ash Wednesday (the first day of Lent) is 40 weekdays (not counting Sundays) before Easter, (or 46 days totally, if counting 6 Sundays). 

 Easter day is canonically the first Sunday after the 14th day of the lunar month (the nominal full moon) that falls on or after March 21st (the vernal equinox, nominally).


[Chemistry]  The atomic number of Carbon, C.


[Chemistry]  The benzene molecule is of a hexagon (regular 6-sided polygon).


[Chemistry]  The number of known noble gases: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe) and Radon (Rn).


[Education]  The best possible GRE (Graduate Record Examinations) Analytical Writing score, on the scale 0-6, with half-point increments.


[EECS]  The digit represented by the blue color by either first 2 bands or the exponent of 10 represented by that color of the 3rd band (i.e. multiplier is 106) in the electronic resistor/capacitor color code.


[Game]  The number of faces on a regular dice. Each face has one value from 1 to 6.


[Game]  The number of categories in each of the first 2 stages of the TV’s “Jeopardy!” game show. A total of 30 questions for each round. The Final “Jeopardy!” has only one question.


[Game]  The number of different colors of a Rubik’s cube, one color for each completed face.


[Game]  The number of lines (broken and unbroken) in each of 64 hexagrams or I-Ching symbols/markings (for Chinese).


[Geology]  The number of continents on the Earth: Africa, America (North and South), Asia, Australia, Europe and Antarctica.


[Geology]  The number of the U.S. official time zones: Hawaii, Alaska, Pacific, Mountain, Central and Eastern, separated 1 hour between 2 consecutive zones. (Excluding 3 time zones of its territories: Guam, Samoa and Wake Island).


[Geology]  U.S. cities/towns whose names start with “Six”: Six Mile, Georgia 30147 – Six Mile, South Carolina 29682 – Six Mile, Alabama 35035 – Six Mile, Ohio – Six Mile, Virginia. Also, Sixteen, Montana and Sixteen Mile Stand, Ohio.


[Geology]  The number of states of the Commonwealth of Australia: New South Wales, Queensland, South Australia, Tasmania (island state), Victoria and Western Australia, together with 2 federal territories: Northern Territory and Australian Capital Territory.


[Gov.]  The number of grades of the most popular Senior Executive Service (ES) salary pay scale for the U.S. government employees (civil servants), in the increasing orders: ES-1 to ES-6.


[Gov.]  The maximum OASDI tax of a year is calculated by multiplying the Social Security (OASDI) wage base of that year by the current OASDI tax rate. (OASDI: Old-Age, Survivors and Disability Insurance). Currently, the rate has been 6.2%. 

(For the year 2009, the wage base is set at $106,800.)


[History]  The number of years for an elected term for a U.S. senator.


[History]  Massachusetts was the 6th state to ratify the U.S. Constitution to join the Union, on 6 February 1788.


[History]  The 6th U.S. President: John Quincy Adams (Republican, Massachusetts, 1825-1829).


[Language]  Prefixes: Hex-, Hexa-, Sex-, Sext-…


[Language]  The shortest word in English that contains the first 6 letters A, B, C, D, E and F is feedback.


[Language]  The number of diacritical accent marks in Vietnamese language: un-marked (level tone), acute “ ” (high rising tone), grave “ ` ” (low falling tone), hook “ ? ” (dipping-rising tone), tilde “ ~ ” (high rising glottalized tone) and dot-below “ . ” (low glottalized tone).


[Language]  "Six feet under ground": dead, to be buried, the standard depth to bury a coffin.


[Language]  The number of occurrences of one vowel (i) in the English word “indivisibility”. This is the only English word with one vowel occurring 6 times.


[Library]  ISBN-0-06 is the International Standard Book Number for books published by Harper & Row Publishers (or Harper Collins Publishers).


[Measure]  The number of feet in a fathom, the length extended from open arm to open arm. This unit is usually used to measure sea depth.


[Measure]  The number of teaspoons in a fluid ounce.

U.S. customary units for kitchen measurements: ½ pints = 1 cup = 8 fluid ounces = 16 tablespoons = 48 teaspoons = 2880 drops = 236.588 ml.


[Measure]  The number of picas in one inch.

Point is a unit used in printing for measuring type/font size (the height of capital letters). Pica is a unit used in printing for measuring column width: 1 inch = 6 picas = 72 points.


[Measure]  Mohs hardness scale for estimating the hardness of minerals or solid substances: diamond 10, corundum 9, topaz 8, quartz 7, orthoclase 6, apatite 5, fluorite 4, calcite 3, gypsum 2 and talc 1.


[Measure]  The 6 o’clock direction is straight aback.


[Money]  A Maestro debit card number starts with digits 5020 or 6.


[Movie]  Names of TV shows/series or movies: “Six Days, Seven Nights”, “The Sixth Sense”, “The Sixth Day”, “Six Degrees”, “Six Degrees of Separation” and “Game  6”.


[Movie]  The number of basic ratings in the U.S. motion picture rating system in 1997: TV-Y, TV-G, TV-Y7, TV-PG, TV-14 and TV-M, appearing for 15 seconds in the upper left corner of the TV screen at the beginning of each show or program, except news and sports programs. The original rating system debuted in 1968 had 4 ratings: G (General), PG (Parents Guidance), R (Restricted) and X. Since 1990, there are 5 ratings: G (General Audiences), PG (Parental Guidance Suggested), PG-13 (Parents Strongly Cautioned, for children under 13), R (Restricted, for children under 17) and NC-17 (No One 17 and Under Admitted).


[Music]  The number of strings of a regular guitar.


[Music]  The number of holes on a standard flute.


[Music]  Most popular banjos have 5 strings. Other models have 4 or 6 strings.


[Phone]  The digit that can be dialed mnemonically by either letter M, N or O on the telephone keypad.


[Phone]  The number to key in text messaging on telephone keypad for letter M.


[Science]  Prefix: M, million-, Mega- = 1,000,000 = 106.


[Tech.]  The popular Alkaline-Manganese battery voltages for household electronic devices: 1.5V – 3V – 4.5V – 6V – 9V, available in popular sizes: AAA, AA, C, D, G and N. The Carbon-Zinc batteries have additional values: 12V – 22.5V – 45V and 90V. Other values: PP3 – 1.2V – 3.6V – 4.8V – 8.4V for Ni-Cad rechargeables.


[Theology]  January 6 is the Three Kings Day, the day three wise men visited the baby Jesus, which is as important as Christmas in Mexico, Puerto Rico, Spain and many Latin America countries. (Also known as Epiphany).


[Trivia]  Pack of soft drink cans or bottles: 4, 6, 12, 18, 20, 24, 30 or 36.


[Trivia]  The number of eggs in a carton: 6, 12, 18 or 36.


[Trivia]  In the New York Times crosswords, one sixth (1/6) of the diagrams can be black squares.


[Trivia]  Researchers claimed that lying at a 6-degree angle (the body tilted 6 degrees towards the head) is the best way to simulate zero gravity on Earth.


[Trivia]  Morse code for number 6 is 1 dash and 4 dots [ _ . . . . ]

Flag semaphore signal for number 6 is that of letter F.


004, 005 & 006

[Library]  First 3 digits (004, 005 and 006) in the Dewey Decimal Classification System call numbers for library books in Computer Science.


5 & 6

[History]  The 5th U.S. President: James Monroe (Republican, Virginia, 1817-1825).

His Vice President, Daniel D. Tomkins (New York), was the 6th U.S. Vice President.


6 & 7

[History]  The 6th U.S. President: John Quincy Adams (Republican, Massachusetts, 1825-1829).

His Vice President, John Caldwell Calhoun (South Carolina, 1825-1829), was the 7th U.S. Vice President.