Significant Number Factoid Friday – Today The Number Is Twelve 12 (Part 2)

“Fight Against Stupidity And Bureaucracy”

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Last week the number that came up as the significant number was twelve.

It turned out to be a number with a lot of associations, so many in fact that for the first time I decided to split the post into two parts.

Today we have the second part, which deals with the ‘militaria’ associations. So if you have an interest in this kind of thing I hope you will enjoy looking at this post.

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In militaria

• HMS E12
• HMS E12 was a British E class submarine built by HM Dockyard, Chatham and commissioned on 14 October 1914.
• Her forward hydroplanes became entangled in anti submarine nets in the Dardanelles which sent her down to 245 feet, at the time the greatest depth achieved by any British submarine. E12 managed to surface only to come under fire by shore batteries. She avoided further damage.
• HMS E12 was sold in Malta on 7 March 1921.

HMS E18 bliźniaczy do E12

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• HMS H12
• HMS H12 was a British H-class submarine built by Fore River Yard, Quincy, Massachusetts and commissioned in 1915.
• HMS H12 along with HMS H11 and HMS H13 to HMS H20 were all built in America but were interned by the United States government until the USA entered World War I.
• HMS H12 was sold in April 1920 in Dover.

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• USS O-12
• The USS O-12 (SS-73) was an O-class submarine of the United States Navy launched on 29 September 1917.
• These later O-boats, O-11 through O-16, designed by Lake Torpedo Boat, were to different specifications than the earlier Electric Boat designs. They performed poorly as compared to the Electric Boat units, and are sometimes considered a separate class.

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• SM U-12
• SM U-12 or U-XII was a U-5-class submarine or U-boat built for and operated by the Austro-Hungarian Navy (German: Kaiserliche und Königliche Kriegsmarine or K.u.K. Kriegsmarine) before and during the First World War.
• Click here to listen to “The Hunt for U12, broadcast BBC Radio Scotland, 6th June 2009”.

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• HMS Achates (H-12)
• HMS Achates was an A-class destroyer of the British Royal Navy launched on 4 October 1929 and commissioned on 27 March 1930. She was sunk on 31 December 1942 in the Battle of the Barents Sea.

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• L12 Molotovets
• The Leninets or L-class were the second class of submarines to be built for the Soviet Navy. They were minelaying submarines and were based on the British L-class submarine, HMS L55, which was sunk during the British intervention in the Russian Civil War. Some experience from the previous Dekabrist-class submarines was also utilized.
• The boats were of the saddle tank type and mines were carried in two stern galleries as pioneered on the pre-war Krab, the world’s first mine-laying submarine.
• These boats were considered successful by the Soviets and 25 were built in 4 groups between 1931 and 1941. Groups 3 and 4 had more powerful engines and higher speed.

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• Z12 Erich Giese
• The Z12 Erich Giese was a Type 1934A-class destroyer built for the German Navy (Kriegsmarine) in the late 1930s. At the beginning of World War II, the ship was used in the German Bight to lay minefields in German waters. In late 1939 the ship made one successful minelaying sortie off the English coast that claimed two merchant ships. While returning from that sortie, she torpedoed a British destroyer without being detected and continued on her way. During the early stages of the Norwegian Campaign, Erich Giese fought in both naval Battles of Narvik in mid-April 1940 and was sunk by British destroyers during the Second Battle of Narvik.

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• O 12
• The O 12 was a O 12-class submarine of the Royal Netherlands Navy. Built at Koninklijke Maatschappij De Schelde in Vlissingen, it was launched in 1930 but was unable to take part in military action during World War II. During the German attack on the Netherlands in 1940, O 12 was in the naval wharf of Willemsoord, Den Helder for periodic maintenance. Unable to make the trip across the North Sea to England, the ship was scuttled.
• The German occupying forces had O 12 raised and sent it to the Wilton-Fijenoord wharf in Rotterdam for repairs. On January 30, 1943, it was taken into service by the German Navy, the Kriegsmarine, as the U-D2.
• On July 6, 1944, it was taken out of service and moved to Kiel, where it was scuttled in the harbor just before the end of the war.
• Afterwards, O 12 was raised and demolished.

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• USS S-12
• The USS S-12 (SS-117) was a second-group (S-3 or “Government”) S-class submarine of the United States Navy. She was launched on 4 August 1921.
• In addition to service in the northeast through 1928, from 1929 into 1936, S-12 served almost exclusively in the Panama Canal area although she visited Baltimore, Maryland, from 15 May to 5 June 1933, and New London from 15 May to 1 June 1935.
• Departing Coco Solo on 13 June 1936, S-12 decommissioned at Philadelphia, Pennsylvania, on 30 September 1936.
• S-12 was recommissioned on 4 November 1940 and following voyages to Bermuda, Saint Thomas, United States Virgin Islands, and Coco Solo, S-12 operated at St. Thomas from December 1941 into March 1942; in the Panama Canal area from April into June; at Guantánamo from June into December; in the Panama Canal area from that month into May 1944; at Trinidad from May into July; and at Guantánamo from July into 1945.
• Departing from Guantánamo on 25 March, S-12 was decommissioned on 18 May 1945 at Philadelphia, and sold on 28 October that year to Rosoff Brothers of New York City. Resold to Northern Metals Company of Philadelphia, on an unspecified date, she was scrapped.

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• I-12 Submarine
• The submarine I-12 was a Japanese A2 type long-range fleet submarine built at the Kawasaki’s shipyard in Kobe.
• The I-12 was used during 1944 to disrupt American shipping between the west coast and the Hawaiian Islands. She torpedoed and sank the Liberty ship John A. Johnson, on 30 October 1944 and, after ramming and sinking the lifeboats and rafts, then machine-gunned the 70 survivors in the water, killing 10.
• A Pan American Airways plane spotted the John A. Johnson’s remaining men soon thereafter, and the USS Argus recovered them at 21:35 on 30 October. The Argus disembarked the men at San Francisco on 3 November.

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• HMS Ocean L12
• HMS Ocean of the Royal Navy is an amphibious assault ship (or landing platform helicopter) and is the sole member of her class. She is designed to support amphibious landing operations and to support the staff of Commander UK Amphibious Force and Commander UK Landing Force.
• She was constructed in the mid-1990s by Kvaerner Govan Ltd on the Clyde and fitted out by VSEL at Barrow-in-Furness prior to first of class trials and subsequent acceptance in service.
• She was commissioned in September 1998 at her home port HMNB Devonport, Plymouth.

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• Curtiss A-12 Shrike
• The Curtiss A-12 Shrike was the United States Army Air Corps’ second monoplane ground-attack aircraft, and its main attack aircraft through most of the 1930s.
• It was based on the A-8, but had a radial engine instead of the A-8’s inline, water-cooled engine, as well as other changes.

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• Curtiss XF12C-1
• In 1932, the U.S. Navy gave Curtiss a contract to design a parasol two-seat monoplane with retractable undercarriage and powered by a Wright R-1510 Whirlwind, intended to be used as a carrier-based fighter.
• The resulting aircraft, designated the XF12C-1, flew in 1933. Its chosen role was changed first to a scout, and then to a scout-bomber (being redesignated XS4C-1 and XSBC-1 respectively), but the XSBC-1’s parasol wing was unsuitable for dive bombing. A revised design was produced for a biplane, with the prototype, designated the XSBC-2, first flying on 9 December 1935.

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• Miles M.12 Mohawk
• The Miles M.12 Mohawk was a 1930s British two-seat, tandem cabin monoplane built by Phillip & Powis Aircraft (later to become Miles Aircraft) to the order of Charles Lindbergh in 1936.
• After being used by Lindbergh in Europe it was impressed into service with Royal Air Force as a communications aircraft in 1941.

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• Vultee V-12
• The Vultee V-11 and V-12 were American attack aircraft of the 1930s.
• The V-11 and V-12 were purchased by several nation’s armed forces, including China, who used them in combat against Japanese forces in the Second Sino-Japanese War.
• The United States Army Air Corps purchased seven V-11s as the Vultee YA-19 in the years before World War II, testing them to gather data to compare against twin engine light attack planes.

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• Fiat G.12
• The G.12 was an all-metal low-wing cantilever personnel transport aircraft. It had three radial engines, one mounted on the fuselage nose and the other two in wing-mounted nacelles.
• The engines drove three-blade feathering metal propellers. The mainwheels of its landing gear retracted into the nacelles; the tailwheel was fixed. The flight deck and cabin were fully enclosed. Access was via a port-side access door aft of the wing.
• The G.12 was designed as a civil aircraft, but served mainly in military roles during the war. Only a limited number were built, some as late as 1944, after the Italian armistice. The G.12 inspired the postwar G.212 “Flying Classroom”, the last Italian three-engine transporter. Crew:4

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• Republic XF-12 Rainbow
• The Republic XF-12 Rainbow was an American four-engine, all-metal prototype reconnaissance aircraft designed by the Republic Aviation Company in the late 1940s.
• Like most large aircraft of the era, it used radial engines—in this case, the Pratt & Whitney R-4360 “Wasp Major.” The aircraft was designed with maximum aerodynamic efficiency in mind. The XF-12 was referred to as an aircraft that was “flying on all fours” meaning: four engines, 400 mph cruise, 4,000 mile range, at 40,000 feet. A
• lthough highly innovative, the postwar XF-12 Rainbow was fated to compete against more modern jet engine technology and was not to enter production.

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• Lockheed A-12
• The Lockheed A-12 was a reconnaissance aircraft built for the Central Intelligence Agency (CIA) by Lockheed’s famed Skunk Works, based on the designs of Clarence “Kelly” Johnson. The A-12 was produced from 1962 to 1964, and was in operation from 1963 until 1968.
• The single-seat design, which first flew in April 1962, was the precursor to both the twin-seat U.S. Air Force YF-12 prototype interceptor and the famous SR-71 Blackbird reconnaissance aircraft.
• The aircraft’s final mission was flown in May 1968, and the program and aircraft retired in June of that year. The A-12 program was officially revealed in the mid-1990s.

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• McDonnell Douglas/General Dynamics A-12 Avenger II
• The McDonnell Douglas/General Dynamics A-12 Avenger II was a proposed American attack aircraft from McDonnell Douglas and General Dynamics. It was to be an all-weather, carrier-based stealth bomber replacement for the Grumman A-6 Intruder in the United States Navy and Marine Corps. Its Avenger II name was taken from the Grumman TBF Avenger of World War II.
• The projected cost of the program was $57 billion, with an estimated per unit cost of $84 million.
• The development of the A-12 was troubled by cost overruns and several delays, causing questions of the program’s ability to deliver upon its objectives; these doubts led to the development program being canceled in 1991. The manner of its cancellation has been contested through litigation to this day.

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• Rockwell XFV-12
• The Rockwell XFV-12 was a prototype supersonic United States Navy fighter which was built in 1977.
• The XFV-12 design attempted to combine the Mach 2 speed and AIM-7 Sparrow armament of the F-4 Phantom II in a VTOL (vertical takeoff and landing) fighter for the small Sea Control Ship which was under study at the time.
• On paper, it looked superior to the subsonic Hawker Siddeley Harrier attack fighter, however, it proved unable to produce enough thrust for vertical flight, even with an installed engine with more thrust than its empty weight, and the project was abandoned.

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• C-12 Huron
• The C-12 Huron is the military designation for a series of twin-engine turboprop aircraft based on the Beechcraft Super King Air and Beechcraft 1900.
• C-12 variants are used by the United States Air Force, United States Army, United States Navy and United States Marine Corps.
• These aircraft are used for various duties, including embassy support, medical evacuation, as well as passenger and light cargo transport. Some aircraft are modified with surveillance systems for various missions, including the Cefly Lancer, Guardrail and Project Liberty programs.

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• Bell Helicopter XR-12
• During 1946, Bell Helicopter began development of a new utility helicopter, the Model 42. Three prototypes were built but serious rotor problems and complexity of mechanical systems precluded production.
• A production batch of 34 helicopters was ordered, under the designation R-12A, but cancelled in 1947.
• Another enlarged prototype (the XR-12B, Model 48A) with seats for eight plus two pilots and a more powerful 600 horsepower (447 kW) Pratt & Whitney R-1340-55 engine was also ordered, followed by 10 pre-series YR-12B helicopters, with a glazed nose, instead of the car-like nose of the Model 42 and XR-12. Whilst under flight test the helicopter was re-designated the H-12, but the results were not satisfactory, there were major problems with the main rotor due to blade weaving and poor rotor governor performance.

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• Mil V-12
• The Mil V-12 (also referred to as the Mi-12) is the largest helicopter ever built.
• The name “Mi-12” would have been the name for the production helicopter, however, since the V-12 never went into production and only two prototypes were built, the name “Mi-12” was never officially adopted.

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• NAMC J-12
• The NAMC J-12 was a lightweight supersonic fighter built in the People’s Republic of China for use by the PLAAF. It was one of first serious attempts taken by Chinese aircraft manufacturers to develop a modern jet fighter of indigenous design. Weighing 6,993 lb (3,172 kg) empty, it is one of the lightest jet fighters ever built.
• Neither the J-12 nor the related Shenyang J-11 (Not to be confused with the Shenyang J-11 Flanker B+ that entered service in 1998) entered service.
• Nine J-12s are believed to have been built, but in 1977, development of the J-12 was abandoned, probably because the Chengdu J-7, based on the Soviet MiG-21F, was considered superior.

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• Beriev Be-12 Chayka
• The Beriev Be-12 Chayka (“Seagull”) is a Soviet turboprop-powered amphibious aircraft designed for anti-submarine and maritime patrol duties.

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• Boeing P-12
• The Boeing P-12 or F4B was an American pursuit aircraft that was operated by the United States Army Air Corps and United States Navy.

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• Harbin Y-12
• The Harbin Y-12 is a high wing twin-engine turboprop utility aircraft built by Harbin Aircraft Manufacturing Corporation (HAMC).

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• Rans S-12 Airaile
• The Rans S-12 Airaile is a family of related American single-engined, pusher configuration, high-wing monoplanes designed by Randy Schlitter and manufactured by Rans Inc. Production of the S-12S Airaile, S-14 Airaile, S-17 Stinger and S-18 Stinger II was ended as part of Rans’ extensive reorganization of its product line on 1 June 2006.
• The S-12XL Airaile was originally intended to be cut from the line at the same time, but the customer demand convinced the company to retain the model and it is still available.

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• P-12 “Yenisei”
• The P-12 “Yenisei” was an early 2D VHF radar developed and operated by the former Soviet Union.

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• T-12
• The T-12 (also known as Cloudmaker) demolition bomb was developed by the United States from 1944 to 1948 and  designed to attack targets invulnerable to conventional “soft” bombs, such as bunkers and viaducts.
• It achieved this by having an extremely thick hardened nose section, which was designed to penetrate deeply into hardened concrete structures and then detonate inside the target after a short time delay. This created an “earthquake effect”.
• The final T-12 weighed 43,600 lb (nearly 20 metric tons). This was twice the size of the United States’ previous largest bomb.

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• Mark-12 nuclear bomb
• The Mark-12 nuclear bomb was a lightweight nuclear bomb designed and manufactured by the United States of America which was built starting in 1954 and which saw service from then until 1962.
• The Mark-12 was notable for being significantly smaller in both size and weight compared to prior implosion-type nuclear weapons.
• There was a planned W-12 warehead variant which would have been used with the RIM-8 Talos missile, but it was cancelled prior to introduction into service.

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• Convair X-12
• The SM-65B Atlas, or Atlas B, also designated X-12 was a prototype of the Atlas missile.
• First flown on 19 July 1958, the Atlas B was the first version of the Atlas rocket to use the stage and a half design. Ten flights were made. Nine of these were sub-orbital test flights of the Atlas as an Intercontinental Ballistic Missile, with five successful missions and four failures. The seventh flight, launched on 18 December 1958, was used to place the SCORE satellite into low Earth orbit, the first orbital launch conducted by an Atlas rocket.
• All Atlas-B launches were conducted from Cape Canaveral Air Force Station, at Launch Complexes 11, 13 and 14.

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• Dyrenkov-12
• D-12 (Dyrenkov-12) was a Soviet light armored car based on the GAZ-A automobile. It was a further development of N.I. Dyrenkov’s D-8 design and was intended for infantry support and anti-aircraft roles.
• The D-12 served during the early 1930s and was observed on Red Square during November 7th parades. Some vehicles remained in service during the war in 1941 and a few participated in the victory parade in Mongolia in 1945.

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• Gun Motor Carriage M12
• The 155 mm Gun Motor Carriage M12 was a U.S. self-propelled gun developed during the Second World War. Only 100 were built; 60 in 1942 and a further 40 in 1943.
• It had an armored driver’s compartment, but the gun crew were located in an open topped area at the back of the vehicle. An earth spade (similar to a bulldozer blade) at the rear was employed to absorb recoil. This layout—large gun mounted in an open mount at the rear, with a spade—was the pattern adopted for many years by other heavy self-propelled artillery.

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• T-12 Anti-Tank Gun
• The 2A19 or T-12 is a Soviet smoothbore 100-mm anti-tank gun, which served as the main Eastern Bloc towed anti-tank gun from 1955 until the late 1980s.

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• Winchester Model 1912
• The Winchester Model 1912 (also commonly known as the Model 12, or M12) is an internal-hammer pump-action, shotgun with an external tube magazine.
• Popularly-named the Perfect Repeater at its introduction, it largely set the standard for pump action shotguns over its 51 year high-rate production life – from August 1912 until first discontinued by Winchester in May 1964.
• Nearly two million Model 12 shotguns were produced in various grades and barrel lengths.

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• Beretta Model 12
• The Beretta Model 12 is a 9×19mm Parabellum caliber submachine gun. Production started in 1962, the first users being the Italian Carabinieri and the Italian State Police. The Italian Air Force bought a large number of M12S and M12S2 for the airport security units.
• Its debut in combat came during the Tet Offensive in 1968 when the Marines guarding the U.S. embassy in Saigon repelled the assault by the Viet Cong using the Beretta M12.
• It is also used by various South American and African countries, and made under license in Brazil by Taurus and in Indonesia by PT Pindad.

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• Halo P-12
• The Halo P-12 is a pump-action bullpup shotgun featuring a large magazine designed to accept only 2¾” shotgun shells, in-line with the barrel much like that found on the FN P-90.
• The P-12 has an overall length of around 27 inches (69 cm) and weighs less than 9 pounds (4.1 kg) fully loaded.

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• Y-12 National Security Complex
• The Y-12 National Security Complex is a United States Department of Energy National Nuclear Security Administration facility located in Oak Ridge, Tennessee, near the Oak Ridge National Laboratory.
• It was built as part of the Manhattan Project for the purpose of enriching uranium for the first atomic bombs. In the years after World War II, it has been operated as a manufacturing facility for nuclear weapons components and related defense purposes.
• Y-12 is managed and operated under contract by B&W Y-12 (formerly called BWXT Y-12), a partnership of Babcock and Wilcox (formerly called BWXT Technologies), and Bechtel.
• In 2012, three anti-nuclear-weapons protesters broke into the highest-security area of Y-12.

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Significant Number Factoid Friday – Today The Number Is Twelve 12 (Part 1)

“Fight Against Stupidity And Bureaucracy”

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Welcome to significant number factoid Friday.

Today the number is twelve and as usual it has a lot more associations that you might at first think. So many in fact that I have decided to split this post into two parts.

The second part (next Friday) will consist of the many entries in the ‘militaria’ section, while today’s will include the rest.

Even with the split it’s still a long post, but I hope those of you interested in numbers and their associations will enjoy reading it.

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The Number Twelve  12

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In religion

• The number 12 is very important in many religions, mainly Judaism, Christianity, and Islam, but also found in some other belief systems.
• From the Bible we know that Jacob had 12 sons, (Reuben, Simeon, Levi, Judah, Dan, Naphtali, Gad, Asher, Issachar, Zebulun, Joseph and Benjamin), who were the progenitors of the Twelve Tribes of Israel.
• The New Testament describes twelve apostles of Jesus; after Judas Iscariot betrayed Jesus and hanged himself, a meeting was held (Acts) to add Matthias to complete the number twelve once more.
• The Book of Revelation contains much numerical symbolism, and a lot of the numbers mentioned have 12 as a divisor.
• Revelation 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).
• Also 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).

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• The Church of Jesus Christ of Latter-day Saints has a Quorum of the Twelve Apostles.
• In Orthodox Judaism, 12 signifies the age a girl matures (bat mitzvah)
• There are 12 days of Christmas; 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 (or Imami) Shi’a Islam, there are twelve Imams, successors of the prophet Muhammad. These twelve early leaders of Islam were—Ali, Hasan, Husayn, and nine of Husayn’s descendants. Imamah is the Shi‘ah doctrine of religious, spiritual and political leadership of the Ummah. The Shi‘ah believe that the A’immah (“Imams”) are the true Caliphs or rightful successors of Muhammad, and Twelver and Isma‘ili Shi‘ah further that Imams are possessed of supernatural knowledge, authority, and infallibility as well as being part of the Ahl al-Bayt, the family of Muhammad. Both beliefs distinguish the Shi‘ah from Sunnis.
• In the Quran, the Sura number 12 is Sura Yusuf (Joseph), and it is located in Juz’a number 12. This Sura narrates the story of Prophet Yusuf and his 12 brothers.
• In Hinduism, the sun god Surya has 12 names. Also, there are 12 Petals in Anahata (Heart Chakra. There are twelve “Jyotirlingas” in Hindu Shaivism. The Shaivites (orthodox devotees of God Shiva) treat them with great respect and they are visited by almost every pious Hindu at least once in a lifetime.

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• In antiquity there are numerous magical/religious uses of twelves.
• Ancient Greek religion, the Twelve Olympians were the principal gods of the pantheon.
• Greek mythology has the twelve labors of Hercules.
• The chief Norse god, Odin, had 12 sons.
• Several sets of twelve cities are identified in history as a dodecapolis, the most familiar being the Etruscan League.
• In the King Arthur Legend, Arthur is said to have subdued 12 rebel princes and to have won 12 great battles against Saxon invaders.

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In mathematics

• Twelve is the smallest number with exactly six divisors, its divisors being 1, 2, 3, 4, 6 and 12.
• 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.
• Twelve is a superfactorial, being the product of the first three factorials.
• The first four positive integers show up in the following equation 12 = 3 × 4, which can be continued with the equation 56 = 7 × 8.
• A twelve-sided polygon is a dodecagon.
• A twelve-faced polyhedron is a dodecahedron.

• Regular cubes and octahedrons both have 12 edges, while regular icosahedrons have 12 vertices.
• The duodecimal system (1210 [twelve] = 1012), which is the use of 12 as a division factor for many ancient and medieval weights and measures, including hours, probably originates from Mesopotamia.
• In base thirteen and higher bases (such as hexadecimal), twelve is represented as C. In base 10, the number 12 is a Harshad number.

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In science and technology

• Twelve is the atomic number of magnesium in the periodic table.
• The human body has twelve cranial nerves.
• The duodenum (from Latin duodecim, “twelve”) is the first part of the small intestine, that is about twelve inches (30 cm) long. More precisely, this section of the intestine was measured not in inches but in fingerwidths. In fact, in German the name of the duodenum is Zwölffingerdarm and in Dutch the name is twaalfvingerige darm, both meaning “twelve-finger bowel”.
• Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. The vitamin is the largest and most structurally complicated vitamin and can be produced industrially only through bacterial fermentation-synthesis.
• Dichlorodifluoromethane (R-12), a colorless gas usually sold under the brand name Freon-12, is a chlorofluorocarbon halomethane (CFC), used as a refrigerant and aerosol spray propellant. Complying with the Montreal Protocol, its manufacture was banned in the United States along with many other countries in 1996 due to concerns about damage to the ozone layer. It is soluble in many organic solvents. Dichlorodifluoromethane was also the main component of Silly String.

• Force 12 on the Beaufort wind force scale corresponds to the maximum wind speed of a hurricane.
• There are twelve function keys on most PC keyboards (F1 through F12)
• There are twelve 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.

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In space

• Messier object M12 is a magnitude 8.0 globular cluster in the constellation Ophiuchus.
• The New General Catalogue object NGC 12 is a magnitude 13.1 spiral galaxy in the constellation Pisces.
• The 12th moon of Jupiter is Lysithea.
• Twelve people have walked on Earth’s moon.
• Telstar 12, is a commercial broadcast satellite used in telecommunications, operated by Loral Skynet. It is a Ku band satellite with coverage of North America as far West as Cleveland, Ohio, the majority of South America, Europe as far East as the United Arab Emirates and South Africa. Telstar 12 also has the capability to provide intercontinental connectivity including trans-Atlantic to the Mid-East.

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• Apollo 12
• Apollo 12 was the sixth manned flight in the United States Apollo program and the second to land on the Moon (an H type mission).
• It was launched on November 14, 1969 from the Kennedy Space Center, Florida, four months after Apollo 11. Mission commander Charles “Pete” Conrad and Lunar Module Pilot Alan L. Bean performed just over one day and seven hours of lunar surface activity while Command Module Pilot Richard F. Gordon remained in lunar orbit. The landing site for the mission was located in the southeastern portion of the Ocean of Storms.
• Unlike the first landing by Apollo 11, Conrad and Bean achieved a precise landing at their expected location, the site of the Surveyor 3 unmanned probe, which had landed on April 20, 1967. They carried the first color television camera to the lunar surface on an Apollo flight, but transmission was lost after Bean accidentally destroyed the camera by pointing it at the Sun. On one of two moonwalks, they visited the Surveyor, and removed some parts for return to Earth.
• The mission ended on November 24 with a successful splashdown.

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• STS-12 
• During the Space Shuttle program, several missions were cancelled. Many were cancelled as a result of the Challenger and the Columbia disasters. Many early missions were cancelled due to delays in the development of the shuttle. Others were cancelled because of changes in payload and missions requirements.
• STS-12 was originally scheduled for launch on 30 January 1981. The crew of three were to place the satellites TDRS-C and Anik-C2 into orbit during the 2-day mission. An alternate mission was also planned which replaced the TDRS-C with an Intelsat-V satellite, and would last five days instead of two. TDRS-C was eventually made as the replacement for the destroyed TDRS-B and launched from Discovery on STS-26 in September 1988.
• The crew of STS-12 were, Henry W. Hartsfield, Jr. (Commander); Michael L. Coats (Pilot); and Mission Specialists Richard M. Mullane, Steven A. Hawley and Judith A. Resnik.

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• Majestic 12
• According to UFO conspiracy theory, Majestic 12 (or MJ-12) is the supposed code name of an alleged secret committee of scientists, military leaders, and government officials, formed in 1947 by an executive order by U.S. President Harry S. Truman. The purpose of the committee was to investigate the recovery of a UFO north of Roswell, New Mexico during July 1947.
• Initial indications of such a group’s existence appeared in 1978 in declassified Canadian documents. Another reference to a classified group called “MJ-12” was discovered in 1980, but was later identified to be a hoax. In 1984 a set of documents was discovered in United States archives, which closely resemble real declassified documents, but which the FBI have declared to be “completely bogus”.
• UFO conspiracy theories and the popular media based on them sometimes incorporate Majestic 12.

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In politics

• The 12th President of the United States of America (1849–1850) was Zachary Taylor (November 24, 1784 – July 9, 1850). An American military leader, his 40-year military career ended with far-reaching victories in the Mexican–American War. His status as a national hero won him election to the White House despite his vague political beliefs. His top priority as president was preserving the Union, but he died 16 months into his term, before making any progress on the status of slavery, which had been inflaming tensions in Congress.

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• The Twelfth Amendment (Amendment XII) to the United States Constitution provides the procedure for electing the President and Vice President. It replaced Article II, Section 1, Clause 3, which provided the original procedure by which the Electoral College functioned. Problems with the original procedure arose in the elections of 1796 and 1800. The Twelfth Amendment was proposed by the Congress on December 9, 1803, and was ratified by the required number of state legislatures on June 15, 1804.
• The United States of America is divided into twelve Federal Reserve Districts (Boston, New York, Philadelphia, Cleveland, Richmond, Atlanta, Chicago, St. Louis, Minneapolis, Kansas City, Dallas, and San Francisco); American paper currency has serial numbers beginning with one of twelve different letters, A through L, representing the Federal Reserve Bank from which the currency originated.

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• There are 12 stars are featured on the Flag of Europe

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• The French department Aveyron is number twelve.
• In Northern Ireland the Twelfth of July is the main day of celebration and commemoration for the Protestant and Unionist community, and a public holiday.

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In sport

• The competition that was founded in 2001 as the Celtic League changed its name in 2011 to Pro12, reflecting its status as a 12-team league after it expanded in 2010 to include teams from Italy.
• The Southern Hemisphere competition now known as Super Rugby was known from 1996 through 2005, an era in which it had 12 teams, as Super 12.
• In both soccer and American football, the number 12 can be a symbolic reference to the fans because of the support they give to the 11 players on the field.
• Texas A&M University reserves the number 12 jersey for a walk-on player who represents the original “12th Man”, a fan who was asked to play when the team’s reserves were low in a college American football game in 1922.
• Bayern Munich, Hammarby, Feyenoord, Atlético Mineiro, Flamengo, Seattle Seahawks, Portsmouth and Cork City do not allow field players to wear the number 12 on their jersey because it is reserved for their supporters.
• The jersey number 12 has been retired by several North American sports teams in honor of past playing greats (or, in one case, a team’s fans):
• In Major League Baseball: the Tampa Bay Rays, for Hall of Famer Wade Boggs; the Toronto Blue Jays, for Hall of Famer Roberto Alomar.

• In the NFL: the Buffalo Bills, for Hall of Famer Jim Kelly; the Miami Dolphins, for Hall of Famer Bob Griese; the New York Jets, for Hall of Famer Joe Namath; the San Francisco 49ers, for John Brodie; the Seattle Seahawks, for their fans (the “12th Man”); the Dallas Cowboys have a policy of not retiring numbers, however, the team has not issued #12 since the retirement of Hall of Famer Roger Staubach; the Pittsburgh Steelers currently have a policy of not retiring numbers, having retired only one number (70) in their earlier history, however, the Steelers have not issued #12 since the retirement of Hall of Famer Terry Bradshaw.

• In the NBA: the New York Knicks, for Dick Barnett; the Utah Jazz, for Hall of Famer John Stockton; the Cincinnati Royals, for Hall of Famer Maurice Stokes, who suffered a career-ending head injury in 1958, the team’s first season in Cincinnati and the franchise continues to honor the number in its current incarnation as the Sacramento Kings.

• In the NHL: he Detroit Red Wings, for Hall of Famer Sid Abel; the Montreal Canadiens, for Hall of Famers Yvan Cournoyer and Dickie Moore; the Vancouver Canucks, for Stan Smyl; the jersey number 12 has also been retired by the men’s basketball program of the University of North Carolina for Phil Ford.

• 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 ten-pin bowling, 12 is the number of strikes needed for a perfect game.
• In curling, the House or the circular scoring area, is 12 feet in diameter.
• 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 association football, 12 was also the number of teams in the finals of the FIFA Women’s World Cup in its first two editions in 1991 and 1995.

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In books, music, movies and TV

• Books
• ‘Twelfth Night’ is a comedy by William Shakespeare.
• ‘Twelve Angry Men’ by Reginald Rose, was adapted from his own teleplay (see TV below).
• ‘The Twelve’ is a poem by Aleksandr Blok.
• ‘Twelve’ is a novel by Nick McDonell.
• ‘The Twelve Chairs’ is a satirical novel by the Soviet authors Ilf and Petrov.
• ‘Cheaper by the Dozen’ is a 1946 novel by Frank Bunker Gilbreth, Jr. and Ernestine Gilbreth Carey.
• ‘The Twelve Dancing Princesses’ is a folk tale.
• ‘The Aeneid’, an epic poem by Virgil is divided into two halves composed of twelve books.
• ‘Paradise Lost’, an epic poem by John Milton is divided into twelve books perhaps in imitation of the Aeneid.
• In ‘The Hunger Games’, the fictional country of Panem is separated into twelve districts.

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• Music
• Twelve is the number of pitch classes in an octave; the total number of major keys; and the total number of minor keys.
• 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.
• One of the most famous classical music pieces is the 1812 overture by Pyotr Ilyich Tchaikovsky.
• The 12-inch single is a vinyl record format.
• B12 are a British electronic music duo consisting of Mike Golding and Steve Rutter.
• There is a group called ‘Twelve Girls Band’.
• ‘Twelfth Night’ is a progressive rock band.
• ‘12 Play’ is an R. Kelly album.
• ‘The Number 12 Looks Like You’ is a mathcore band.
• ‘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’.
• There is a musical group named ‘12 Stones’.
• ‘12’, a Song from Brave Murder Day by Katatonia.
• ‘12’ is a studio album by German singer Herbert Grönemeyer.
• ‘12’ is the 12th studio album by Keller Williams.
• ‘12 Hundred’ is a song by band Mushroomhead of their Savior Sorrow album.
• ‘12’ (“Dodeka” in Greek) is one of the most well-known hits by Anna Vissi.
• ‘Twelve drummers drumming’ is the gift on the twelfth day of Christmas in the carol ‘The Twelve Days of Christmas’.
• ‘12:59 Lullaby’ by Bedouin Soundclash.
• ‘Rainy Day Women No. 12 & 35’ by Bob Dylan.
• ‘Little 12 Toes’ by Chavez (band).
• ‘12 Hours’ by Davenport Cabinet.
• ‘12’ by Hot Chip.
• ‘Eighteen Wheels and a Dozen Roses’ by Kathy Mattea.
• ‘Twelve Reasons Why’ by My Life Story.
• ‘Dozen Wicked Words’ by The Longpigs.
• ‘Prelude 12’ by Styx.
• ‘12:51’ by The Strokes.
• ‘12 Steps’ by Violent Femmes.
• ‘The 12th Of September’ by Xavier Rudd.
• ‘12 Fingers’ by Young the Giant.
• ‘12-Bar Original’ by The Beatles.
• Twelve is the number of studio albums ‘The Beatles’ released.

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• Movies
• Movies with the number twelve or its variations in their titles include
• 12
• 12.01
• 12 Angry Men (1957 and 1997)
• Cheaper by the Dozen
• Ocean’s Twelve
• 12 Monkeys
• The Dirty Dozen
• 12 Rounds
• Twelve

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• Television
• The number twelve plays a significant role in the television franchise Battlestar Galactica. The characters come from the Twelve Colonies of Kobol and worship the twelve lords of Kobol. In the re-imagined series, there are also twelve models of the humanoid version of Cylons.
• Twelve Angry Men, the original 1954 live performance on the anthology television series Studio One.
• ‘Number 12 Looks Just Like You’ is an episode of the television show The Twilight Zone.
• Schoolhouse Rock! portrayed an alien child using base-twelve arithmetic in the short ‘Little Twelvetoes’.
• 12 Oz Mouse was an animated television show on Adult Swim.

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In transport

• Lockheed Model 12 Electra Junior
• The Lockheed Model 12 Electra Junior, more commonly known as the Lockheed 12 or L-12, is an eight-seat, six-passenger all-metal twin-engine transport aircraft of the late 1930s designed for use by small airlines, companies, and wealthy private individuals.
• A scaled-down version of the Lockheed Model 10 Electra, the Lockheed 12 was not popular as an airliner but was widely used as a corporate and government transport. Several were also used for testing new aviation technologies.
• Aviator Milo Burcham flew a Lockheed 12A in the 1937 Bendix Trophy Race from Burbank, California to Cleveland, Ohio. This 12A had been modified with extra fuel tanks in the cabin, allowing it to save time by making the entire 2,043-mile (3,288 km) trip non-stop. The 12A came in fifth at an average speed of 184 mph (296 km/h); this was an impressive performance, since the first and fourth-place winners were both privately owned Seversky P-35 fighters.
• Another Lockheed 12A, owned by Republic Oil Company and named The Texan, was modified by aviator Jimmie Mattern for a round-the-world flight attempt. Mattern filled the 12A’s cabin with fuel tanks and removed the cabin windows and door; the crew would enter the aircraft via a cockpit hatch. The aircraft was denied a U.S. permit for the flight following the Earhart incident (she had been flying a Lockheed 10 Electra), however it was pressed into action September 1937 in a long range search effort for Sigizmund Levanevsky who crashed somewhere between the North pole and Barrow, Alaska. “The Texan” was outfitted as a luxury transport afterward, and lost in a hangar fire in January 1938.

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• Hispano-Suiza J12
• The Hispano-Suiza J12 was a luxury automobile made by Hispano-Suiza from 1931 to 1938. It replaced the Hispano-Suiza H6. The J12 was powered by a V12 engine with pushrod-operated overhead valves.
• Hispano-Suiza suspended automobile production in 1938 to concentrate on the manufacture of aircraft engines.

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• Renault 12
• The Renault 12 is a family car produced by French automaker Renault between 1969 and 1980. Available as a saloon (Berline) and estate (Break), it was also produced under license in many countries across the globe into the early 21st century.
• In its first few years the 12 received praise from the European press for its spacious, comfortable interior, its styling, its performance and its low fuel consumption. However it fared worse in the North American press: in a test of the 1974 model, Road & Track was critical of the engine’s “obtrusive” noise, and called the heavy, non-power steering “a serious design flaw”. They also gave it “very poor marks” for the ventilation system.
• Renault 12 production and sales ended in western Europe in 1980, but the model continued to be produced and sold by Renault affiliates elsewhere. The last R12 was produced in 1999 in Turkey, whilst Romanian automaker Dacia continued producing the R12-based 1310 sedan and estate until 2004 and the R12-based Dacia Pick-Up until December 2006.
• In terms of sales the Renault 12 was a successful car, selling 2.5 million units.

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• McLaren M12
• The McLaren M12 was an open-cockpit racing car developed by Bruce McLaren Motor Racing in 1969, solely for the purpose of selling to customers in the Can-Am series.
• The M12 combined elements from two of McLaren’s previous efforts, the M6 series and the M8 series.
• One of the more notable owners of an M12 was Chaparral Cars, who used the McLaren in the early 1969 Can-Am season while their own model’s development had been delayed.

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• BMW E12
• The BMW E12 BMW 5-Series was made between 1972 and 1981. The E12 was the first series to bear the 5 Series name: the ‘5’ denoting BMW’s fifth ‘New Class’ platform. Designed as a replacement for the popular BMW New Class mid-size sedan, the E12 5-Series models were smaller than the large BMW E3 sedan but larger than the two-door 2002 models.
• The E12 was replaced by the BMW E28 5 Series in 1981, although production continued until 1984 in South Africa.

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• Volkswagen W12 Coupe
• The Volkswagen W12 Coupe (also known as the Volkswagen Nardò, with reference to the Nardò Ring vehicle test track, near to the Italian city of Nardò) was a concept car created by Volkswagen Passenger Cars in 1997.
• The car is portrayed in games such as Heat Online, Gran Turismo, and the Test Drive series.
• This car also featured in an April Fools joke as the new Volkswagen 2015 LeVanto.

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• Vector M12
• The Vector M12 was a vehicle designed by parent company Megatech LTD the Vector Motors Corporation, and was the first vehicle produced after the hostile takeover of the company from Jerry Wiegert by the Indonesian company Megatech.
• The vehicle was a rebodied Lamborghini Diablo with a chopper gun fiberglass body set on a lengthened Diablo chassis. It was a loose copy of the Vector AWX-3, which was not released due to the Megatech hostile takeover.
• The M12 was able to accelerate from zero to 60 mph (97 km/h) in 4.8 seconds and had a top speed of 189 mph (304 km/h) and was produced from 1995 to 1999, when production was halted, partly due to slow sales of the cars and alleged mismanagement of the company.
• The average price of the vehicle was $184,000 (USD). Today you can purchase a M12 normally for $65,000 to an astounding $189,000 paid by a purchaser of a purple M12 at Barrett Jackson for a record sale price.

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• Noble M12       
• The Noble M12 is a two-door, two-seat model, originally planned both as a coupe and as a convertible.
• All M12s have been powered by modified bi-turbocharged Ford Duratec V6 engines. The M12 has a full steel roll cage, steel frame, and G.R.P. (fibreglass) composite clam shell body parts.
• These famed “Ferrari killers” are extremely lightweight and stiff. Although looking to be track derived, the M12 performs very well on both road and track, with surprisingly good ride quality, but a rigid feel. This is achieved by having no anti-roll bars on the car. This allows the suspension to be stiff yet comfortable.

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• Ferrari F12 Berlinetta
• The Ferrari F12 berlinetta (also unofficially referred to as the F12 Berlinetta or the F12) is a front mid-engine, rear-wheel-drive grand tourer produced by Italian sports car manufacturer Ferrari. The F12 Berlinetta, introduced to the public at the 2012 Geneva Motor Show, replaces the Ferrari 599 series grand tourers.
• The F12berlinetta was named “The Supercar of the Year 2012” by car magazine Top Gear.

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• Spyker E12 Zagato
• Spyker Cars shareholder and CEO, Victor Muller hinted at a Maserati Quattroporte, Porsche Panamera rival with an eight-cylinder (the E8) or a twelve-cylinder (the E12) engine, but due to problems getting the D8 into production, the idea was ignored until recently when Muller has said he “believes now could be the time to resurrect the saloon.”
• Muller believes it will take about four years from time E8/E12 is revealed to the time it starts production. In March 2011, Muller stated that the production version of the Spyker E8/E12 will use a twelve-cylinder instead of the proposed eight-cylinder engine.

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• V12 engine
• A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft.
• Since each cylinder bank is essentially a straight-6, this configuration has perfect primary and secondary balance no matter which V angle is used and therefore needs no balance shafts. A V12 with two banks of six cylinders angled at 60°, 120° or 180° (with the latter configuration usually referred to as a flat-12) from each other has even firing with power pulses delivered twice as often per revolution as a straight-6.
• This allows for great refinement in a luxury car. In a racing car, the rotating parts can be made much lighter and thus more responsive, since there is no need to use counterweights on the crankshaft as is needed in a 90° V8 and less need for the inertial mass in a flywheel to smooth out the power delivery. In a large displacement, heavy-duty engine, a V12 can run slower than smaller engines, prolonging engine life.

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• W12 engine
• A W12 engine is a twelve cylinder piston internal combustion engine in a W configuration.
• W12 engines are manufactured in two distinct configurations. One configuration uses four rows of three cylinders merged into two ‘cylinder banks’ (two narrow-angle VR6 engine blocks), coupled to a common crankshaft – as in the Volkswagen Group W12. Another uses three banks of four cylinders coupled to a common crankshaft – as in the Napier Lion.

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Other stuff

• There are twelve basic hues in the color wheel; 3 primary colors (red, yellow, blue), 3 secondary colors (orange, green & purple) and 6 tertiary colors (names for these vary, but are intermediates between the primaries and secondaries).
• There are 12 ounces in a troy pound (used for precious metals)
• There are 12 signs of the zodiac.
• In English, twelve is the number of greatest magnitude that has just one syllable.
• There are normally twelve pairs of ribs in the human body.
• The Twelve Tables or Lex Duodecim Tabularum, more informally simply Duodecim Tabulae was the ancient legislation underlying Roman law.
• In the United States, twelve people are appointed to sit on a jury for felony trials in all but four states, and in federal and Washington, D.C. courts. The number of jurors gave the title to the play (and subsequent films) Twelve Angry Men.
• There are 12 inches in a foot.
• Twelve shillings made up one British pound in pre decimal currency.
• There are 12 face cards in a normal card deck.
• Alcoholics Anonymous has 12 steps, 12 traditions and 12 concepts for world service.
• Most calendar systems have twelve months in a year.
• The Western zodiac has twelve signs, as does the Chinese zodiac.
• The Chinese use a 12 year cycle for time-reckoning called Earthly Branches.
• There are twenty-four hours in a day, the hours being 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. The basic units of time (60 seconds, 60 minutes, 24 hours) can all perfectly divide by twelve.

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