ask for a matched duodecuple when ordering new tubes.
did you know that 12 is the largest number with one syllable?
Twelve is a composite number, the smallest number with exactly six divisors, its divisors being 1, 2, 3, 4, 6 and 12. Twelve is also a highly composite number, the next one being twenty-four.
Twelve is a sublime number, a number that has a perfect number of divisors, and the sum of its divisors is also a perfect number. Since there is a subset of 12's proper divisors that add up to 12 (all of them but with 4 excluded), 12 is a semiperfect number.
Twelve is the smallest weight for which a cusp form exists. This cusp form is the discriminant Δ(q) whose Fourier coefficients are given by the Ramanujan τ-function and which is (up to a constant multiplier) the 24th power of the Dedekind eta function. This fact is related to a constellation of interesting appearances of the number twelve in mathematics ranging from the value of the Riemann zeta function at −1 i.e. ζ(−1) = −1/12
the fact that the abelianization of SL(2,Z) has twelve elements, and even the properties of lattice polygons.
There are twelve Jacobian elliptic functions and twelve cubic distance-transitive graphs.
The human body has twelve cranial nerves.
Force 12 on the Beaufort wind force scale corresponds to the maximum wind speed of a hurricane.
The 12th moon of Jupiter is Lysithea.
The Book of Revelation contains much numerical symbolism, and a lot of the numbers mentioned have 12 as a divisor. 12:1 mentions a woman—interpreted as the people of Israel, the Church or the Virgin Mary—wearing a crown of twelve stars (representing each of the twelve tribes of Israel). Furthermore, there are 12,000 people sealed from each of the twelve tribes of Israel, making a total of 144,000 (which is the square of 12 multiplied by a thousand).
There are 12 days of Christmas. The song Twelve Days of Christmas came from the traditional practice of extending Yuletide celebrations over the twelve days from Christmas day to the eve of Epiphany; the period of thirteen days including Epiphany is sometimes known as Christmastide. Thus Twelfth Night is another name for the twelfth day of Christmas or January 5 (the eve of Epiphany). Similarly, Eastern Orthodoxy observes 12 Great Feasts.
In Twelver Shi'a Islam, there are twelve Imams, legitimate successors of the Islamic prophet, Muhammad. These twelve early leaders of Islam are—Ali, Hasan, Husayn, and nine of Husayn's descendants.
Imāmah (Arabic: إمامة) is the Shī‘ah doctrine of religious, spiritual and political leadership of the Ummah. The Shī‘ah believe that the A'immah ("Imams") are the true Caliphs or rightful successors of Muḥammad, and Twelver and Ismā‘īlī Shī‘ah further that Imams are possessed of supernatural knowledge, authority, and infallibility (‘Iṣmah) as well as being part of the Ahl al-Bayt, the family of Muhammad. Both beliefs distinguish the Shī‘ah from Sunnis.
In Quran, the Sura number 12 is Sura Yusuf (Joseph), and it is located in Juz'a (Arabic : الجزء) number 12. This Sura narrates the story of Prophet Yusuf and his 11 brothers, making 12.
In Hinduism, the sun god Surya has 12 names. Also, there are 12 Petals in Anahata (Heart Chakra.)
Most calendar systems have twelve months in a year.
The Chinese use a 12-year cycle for time-reckoning called Earthly Branches.
There are twenty-four hours in a day in all, with twelve hours for a half a day. The hours are numbered from one to twelve for both the ante meridiem (a.m.) half of the day and the post meridiem (p.m.) half of the day. 12:00 after a.m. and before p.m. (in the middle of the day) is midday or noon, and 12:00 after p.m. and before a.m. (in the middle of the night) is midnight. A new day is considered to start with the stroke of midnight. The basic units of time (60 seconds, 60 minutes, 24 hours) can all perfectly divide by twelve.
In one solar year there are roughly 12 lunar months: ( one solar year / one average lunar month ≈ 365.2422 solar days / 29.5305 solar days ≈ 12.3683 ≈ 12 )
In Canadian football, 12 is the maximum number of players that can be on the field of play for each team at any time.
In cricket, another sport with eleven players per team, teams may select a "12th man", who may replace an injured player for the purpose of fielding (but not batting, bowling or keeping wicket).
In rugby league, one of the starting second-row forwards wears the number 12 jersey in most competitions. An exception is in the European Super League, which uses static squad numbering.
In rugby union, one of the starting centres, most often but not always the inside centre, wears the 12 shirt.
ASCII and Unicode code point for form feed.
The number of function keys on most PC keyboards (F1 through F12)
The number of keys in any standard digital telephone (1 through 9, 0, * and #)
Microsoft's Rich Text Format specification assigns numbers congruent to 12 mod 256 to variants of the French language.
Twelve Girls Band
Twelve is the number of pitch classes in an octave, not counting the duplicated (octave) pitch. Also, the total number of major keys, (not counting enharmonic equivalents) and the total number of minor keys (also not counting equivalents). This applies only to twelve tone equal temperament, the most common tuning used today in western influenced music.
The twelfth is the interval of an octave and a fifth. Instruments such as the clarinet which behave as a stopped cylindrical pipe overblow at the twelfth.
The twelve-tone technique (also dodecaphony) is a method of musical composition devised by Arnold Schoenberg. Music using the technique is called twelve-tone music.
The 12-inch single is a vinyl record format.
Twelfth Night is a progressive rock band
12 Play is an R. Kelly album.
The Number 12 Looks Like You is a mathcore band.
"12", a Song from Brave Murder Day by Katatonia.
12 is a studio album by German singer Herbert Grönemeyer.
Twelve is an album by Patti Smith.
Twelve Deadly Cyns...and Then Some is an album by Cyndi Lauper.
D12 a rap group also known as the Dirty Dozen.
Musical group named 12 Stones
12 Hundred is a song by band Mushroomhead of their Savior Sorrow album.
12 is the 12th studio album by Keller Williams.
"12" ("Dodeka" in Greek) is one of the most well-known hits by Anna Vissi
12 is the number of studio albums the band The Beatles released.
now about 11: ;D