Significant Number Factoid Friday – Today The Number Is Twenty-Five 25

“Fight Against Stupidity And Bureaucracy”

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It’s been a while since I did a number factoid.

My only excuse is the time it takes to compile these, which I haven’t managed to find for a few months, so if you missed them my apologies.

However, there is one today, so if you like this sort of thing I hope you enjoy.

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The Number 25

25

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In religion

  • In the Bible the number twenty-five is of cardinal importance in Ezekiel’s Temple Vision (Ezekiel 40-48).
  • Twenty-five is also seen near God’s throne in heaven. God’s throne, plus the thrones of the twenty-four elders, makes for 25 total. (Revelation 4:1-4)
  • Twenty-five pictures ‘grace upon grace.’ Redemption (20) plus grace (5) also equals 25. (John 1:14, 16-17)
  • Levites were to begin serving at age 25 in assisting with sacrifices — which were a physical type of forgiveness and redemption for the people.
  • Jehoshaphat, considered one of the best kings to rule the Kingdom of Judah, reigned for 25 years (872 – 848 B.C.).

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  • In Islam, there are twenty-five prophets mentioned in the Quran.

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In mathematics

  • 25 is a square number, being 5² = 5 × 5.
  • 25 is the smallest square that is also a sum of two squares: 25 = 3² + 4². Hence it often appears in demonstrations of the Pythagorean theorem.

pythagoras-3-4-5

  • 25 percent is equal to 1/4.
  • Within base 10 one can readily test for divisibility by 25 by seeing if the last two digits of the number match 25, 50, 75 or 00.
  • In base 30, 25 is a 1-automorphic number (displayed as the numeral ‘P’ or ‘R’ dependant on the chosen digit set), and in base 10 a 2-automorphic number.

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In science and technology

  • Atomic Number of Manganese (Mn) = 25  (25 protons & 25 electrons)
  • It is part of the name of LSD-25 molecule
  • 25 is the usual TCP port for SMTP.
  • 25 is the per-second frame rate of the PAL video standard
  • And probably most significant of all, the internet or world wide web turned 25 this year!

world wide web is 25 this year

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In space

  • Open Cluster M25 (also known as Messier Object 25 or IC 4725) is an open cluster in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745 and included in Charles Messier’s list in 1764.
  • NGC 25 is a lenticular galaxy situated in the Phoenix constellation
  • The Sun rotates once in 25 days near the poles and about 30 days near its equator.
  • 25 is the number of days approximately that takes the sun to do a complete rotation on itself.

sun

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In politics

  • William McKinley (January 29, 1843 – September 14, 1901) was the 25th President of the United States, serving from March 4, 1897, until his assassination in September 1901, six months into his second term. McKinley led the nation to victory in the Spanish–American War, raised protective tariffs to promote American industry, and maintained the nation on the gold standard in a rejection of inflationary proposals. He was also the last President to have served during the Civil War.

25th US President Wm McKinley jnr

  • The Twenty-fifth Amendment (Amendment XXV) to the United States Constitution deals with succession to the Presidency and establishes procedures both for filling a vacancy in the office of the Vice President, as well as responding to Presidential disabilities. It supersedes the ambiguous wording of Article II, Section 1, Clause 6 of the Constitution, which does not expressly state whether the Vice President becomes the President, as opposed to an Acting President, if the President dies, resigns, is removed from office or is otherwise unable to discharge the powers of the presidency. The Twenty-fifth Amendment was adopted on February 23, 1967.
  • 25 is the minimum age of candidates for election to the United States House of Representatives.
  • 25 is the (critical) number of Florida electoral votes for the 2000 U.S. presidential election
  • 25 is the number of the French department Doubs

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In books, music, movies and TV

  • “25” is a song by Veruca Salt from their 1994 album American Thighs.
  • “25th Floor” is a song by Patti Smith Group from their 1978 album Easter.
  • Twenty Five is the name of a 2006 George Michael compilation celebrating 25 years in the music business (1981–2006).
  • “In the Year 2525 (Exordium et Terminus)” is a 1969 hit song by the American pop-rock duo of Zager and Evans. It reached number one on the Billboard Hot 100.
  • The 25th Hour is a MGM film (1967) with screen-play by Henri Verneuil based on C. Virgil Gheorghiu’s novel.
  • Not forgetting our old friend, “Buck Rogers in the 25th Century”

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In sport

  • Twenty-five is the value of the outer bullseye on a dart board.
  • Twenty-five is the size of the full roster on a Major League Baseball team for most of the season, except for regular-season games on or after September 1, when teams may expand their roster to no more than 40 players.
  • In baseball, the number 25 is typically reserved for the best slugger on the team. Examples include Mark McGwire, Barry Bonds, and Mark Teixeira.

MarkTeixeira

  • The number of points needed to win a set in volleyball under rally scoring rules (except for the fifth set), so long as the losing team’s score is two less than the winning team’s score (i.e., if the winning team scores 25 points, the losing team can have no more than 23 points).
  • In U.S. college football, schools that are members of NCAA Division I FBS are allowed to provide athletic scholarships to a maximum of 25 new football players (i.e., players who were not previously receiving scholarships) each season.
  • In the NBA the number 25 jersey has been retired by the Boston Celtics for K. C. Jones; by the Cleveland Cavaliers for Mark Price; by the Los Angeles Lakers for Gail Goodrich; and by the Washington Wizards for Gus Johnson (the team was then known as the Baltimore Bullets).
  • In the NHL the number 25 jersey has been retired by the  Winnipeg Jets for Thomas Steen.

Thomas-Steen

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In automotive and transportation

  • In the United States 25 is the designation of United States Interstate 25, a freeway that runs from New Mexico to Wyoming.
  • In Britain M25 is the designation of the London Orbital motorway.

map-of-the-m25-motorway-junctions

  • And in Russia Municipal Okrug 25, until March, 2010, was the name of Knyazhevo Municipal Okrug in Kirovsky District of Saint Petersburg.

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  • The Carlsson C25 Supercar
  • Carlsson’s first supercar, the C25, made its debut at the 2010 Geneva Motor Show. With a limited run of 25 units, the C25 is powered by a twin-turbocharged V12 engine that generates 753 hp (562 kW) and 848 ft·lbf (1,150 N·m) of torque. Estimated acceleration from 0–100 km/h (62 mph) in 3.7 seconds and top speed is 219 mph. (355 km/h).

carlsson-c25-xl

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  • Donkervoort Prototype J25
  • Under the code name J25, Donkervoort developed – right before its 25 year jubilee – a completely new car. This model went a step further in its styling than its predecessors the S8 and D8. The, for that period, very modern lines and a number of details, such the little doors and nose used, were derived from the D20. The J25 was also the first Donkervoort to be produced with 270 bhp.

Donkervoort J25

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  • Infiniti G25
  • Infiniti debuted the G25 sedan at the 2010 Paris Auto Show. The G25 is powered by a 2.5 L V6 VQ25HR producing 218 hp (163 kW) and 187 lb·ft (254 N·m) of torque. The G25’s JDM relative, the Nissan Skyline 250 GT Sedan which features the same engine, had been on sale for several years already.

infiniti-g25

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  • BMW R25
  • The 1951 the 250cc R25 single was BMW’s first postwar single-cylinder motorcycle with a rear suspension.

BMW R25

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  • Yamaha R25
  • The Yamaha R25 is the first motorcycle by Yamaha in the 250cc segment. It is a 2-cylinder, liquid cooled motorcycle, using an advanced fuel injection system. It also has a tubular chassis with telescopic front suspension.

Yamaha-YZF-R25-Sports-Motorcycle-Render

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  • C25 Standard RV
  • The C25 is a traditional motorhome with the self-contained features you expect, including most with a power generator in the USA.

c25-rv

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  • David Brown DB25 Tractor
  • David Brown developed the 25hp and 30hp engine, and so the DB25 and DB30 tractors came into existence, lasting from 1953-58. The petrol/TVO models were known as the David Brown 25C and 30C, while they called the diesel versions 25D and 30D. They are still collected and restored by enthusiasts today.

David Brown D25 tractor

 

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J25 Steam Engine

The NER Class P1 (LNER Class J25) was a class of 0-6-0 steam locomotives of the North Eastern Railway in Great Britain. Class P1 was a development of Class P, having a boiler four inches longer, and a firebox six inches longer. To accommodate these, the wheelbase was increased by nine inches. The cylinder stroke was also increased by two inches.

W Worsdell J25 steam engine

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In militaria

  • B-25 Mitchell
  • Named in honor of General Billy Mitchell, a pioneer of U.S. military aviation, the B-25 Mitchell was an American twin-engined medium bomber manufactured by North American Aviation that saw service over four decades. By the end of its production, nearly 10,000 B-25s in numerous models had been built.
  • It was used by many Allied air forces, in every theater of World War II, as well as many other air forces after the war ended, including The Royal Air Force (RAF), Royal Canadian Air Force, Royal Australian Air Force, Dutch Air Force, Soviet Air Force, China Air Force, Brazilian Air Force,  and by the Free French.

B25-bomber

  • However, the incident for which the B-25 is perhaps best known is one that happened in America. At 9:40 on Saturday, 28 July 1945, a USAAF B-25D crashed in thick fog into the north side of the Empire State Building between the 79th and 80th floors.
  • Fourteen people died – eleven in the building and the three occupants of the aircraft including the pilot, Colonel William Smith.
  • Betty Lou Oliver, an elevator attendant, survived the impact and a subsequent uncontrolled descent in the elevator.
  • Partly as a result of this incident, Towers 1 and 2 of the World Trade Center were designed to withstand an aircraft impact. However, this design was based on an impact by a Boeing 707 aircraft in common use in the late 1960s and early 1970s, not the larger Boeing 767, two of which, (American Airlines Flight 11 and United Airlines Flight 175), struck the towers on September 11, 2001, resulting in their eventual collapse.

B25 empire-state

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  • Boeing VC-25
  • The Boeing VC-25 is the United States Air Force designation for a military version of the Boeing 747 airliner. The A-model (VC-25A) is the only variant of the VC-25.
  • The VC-25 is most famous for its role as Air Force One, the call sign of any U.S. Air Force aircraft carrying the President of the United States. The two aircraft currently in U.S. service are highly modified versions of Boeing’s 747-200B, with tail numbers 28000 and 29000.
  • Although the Air Force One designation technically applies to the aircraft only while the President is aboard, the term is commonly applied to the VC-25s more generally.
  • They often operate in conjunction with Marine One helicopters that ferry the President to airports in circumstances where a vehicle motorcade would be inappropriate.

Boeing VC-25 Air_Force_One_over_Mt._Rushmore

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  • MIG-25
  • The Mikoyan-Gurevich MiG-25 is a supersonic interceptor and reconnaissance aircraft that was among the fastest military aircraft to enter service.
  • It was designed by the Soviet Union’s Mikoyan-Gurevich bureau. The first prototype flew in 1964, and the aircraft entered into service in 1970.
  • It has a top speed of Mach 2.83 (as high as Mach 3.2, but at risk of significant damage to the engines), and features a powerful radar and four air-to-air missiles.
  • When first seen in reconnaissance photography, the large wing planform suggested an enormous and highly maneuverable fighter. This was during a period of time when U.S. design theories were also evolving towards higher maneuverability due to combat performance in the Vietnam War.
  • The capabilities of the MiG-25 were better understood in 1976 when Soviet pilot Viktor Belenko defected in a MiG-25 to the United States via Japan. It turned out that the weight of the aircraft necessitated large wings.
  • Production of the MiG-25 series ended in 1984 after completion of 1,190 aircraft. A symbol of the Cold War, the MiG-25 flew with Soviet allies and former Soviet republics, remaining in limited service in Russia and several other nations.
  • It is the second fastest and second highest-flying military aircraft ever fielded after the SR-71 reconnaissance aircraft.

mig25

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  • USS Terry (DD-25)
  • Launched on 21 August 1909 and commissioned on 18 October 1910, the USS Terry (DD-25) was a modified Paulding-class destroyer in the United States Navy during World War I, and later in the United States Coast Guard, designated CG-19. She was the first ship named for Edward Terry.
  • During WWI USS Terry patrolled along the Atlantic coast escorting merchantmen bound for Europe. In January 1918, Terry put to sea for operations with the destroyer force based at Queenstown, Ireland where she escorted convoys through the submarine-infested waters surrounding the British Isles.
  • In December 1918, Terry returned to the United States, and after 11 months of extremely limited service, she was decommissioned at Philadelphia Navy Yard on 13 November 1919.
  • She remained there until she was transferred to the Coast Guard on 7 June 1924. Based in New York, she served as part of the Rum Patrol, until 18 October 1930, when she was returned to the Navy and restored on the Navy list in a decommissioned status, listed as a “vessel to be disposed of by sale or salvage.” On 2 May 1934, Terry was sold for scrapping. Her name was struck from the Naval Vessel Register on 28 June 1934.

USS_Terry_(DD-25)

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  • USS Salt Lake City (CL/CA-25)
  • Launched on 23 January 1929 and commissioned on 11 December 1929, the USS Salt Lake City (CL/CA-25) was a Pensacola-class heavy cruiser sometimes known as “Swayback Maru” or “Old Swayback”. She had the (unofficial) distinction of having taken part in more engagements than any other ship in the fleet. She was also the first ship to be named after Salt Lake City, Utah.
  • From August–October 1942, Salt Lake City was in the south Pacific to support the campaign to seize and hold Guadalcanal. She escorted Wasp during the landings of 7–8 August and subsequent operations.
  • Surviving two atomic bomb blasts, she was decommissioned on 29 August and laid up to await ultimate disposal. She was sunk as a target hull on 25 May 1948, 130 mi (110 nmi; 210 km) off the coast of southern California
  • Salt Lake City received 11 battle stars for her World War II service, and a Navy Unit Commendation for her actions during the Aleutian Campaign.

USS_Salt_Lake_City_(CA-25)

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  • USS Potomac (AG-25)
  • The USS Potomac (AG-25), formerly USCGC Electra, was Franklin Delano Roosevelt’s presidential yacht from 1936 until his death in 1945.
  • On 3 August 1941, she played a decoy role while Roosevelt held a secret conference to develop the Atlantic Charter.
  • She is now preserved in Oakland, California, as a National Historic Landmark.

USS Potomac AG-25

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  • USS Copeland (FFG-25)
  • The USS Copeland (FFG-25), the first ship of that name in the US Navy, was the seventeenth ship of the Oliver Hazard Perry-class of guided-missile frigates. She was named for Rear Admiral Robert W. Copeland (1910–1973).
  • Copeland was launched on 26 July 1980, and commissioned on 7 August 1982.
  • Decommissioned and stricken on 18 September 1996, she was transferred to Egypt the same day as Mubarak (F911). After the 2011 revolution the ship was renamed to remove the former ruler’s name. The ship is currenty named Alexandria (F911) and remains in active service with the Egyptian Navy.

USS Copeland FFG-25

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  • USS Bainbridge
  • The nuclear powered USS Bainbridge (DLGN-25/CGN-25) was initially classed as a guided missile destroyer leader in the United States Navy, and later re-designated as a guided missile cruiser in 1975.
  • In 1966–67, 1969, 1970, 1971 and 1972–73, USS Bainbridge was involved Vietnam War combat operations, as well as voyages to Australia, the Indian Ocean and Arabian Sea.
  • In 1982 she won the Marjorie Sterrett Battleship Fund Award.
  • After receiving her final nuclear refueling overhaul in 1983–85, Bainbridge operations included counter-drug smuggling patrols in the Caribbean, several deployments to northern European waters and four Mediterranean cruises including combat operations off Libya.
  • During 1994 she was deployed to support UN resolutions that became part of Operation Sharp Guard, enforcing sanctions against the Former Republic of Yugoslavia and Bosnia.
  • Finally deactivated in October 1995, Bainbridge was decommissioned in September 1996 and towed to Bremerton, Washington in mid-1997 where she was put in dry dock to begin “recycling,” the process by which nuclear-powered warships are scrapped.

USS Bainbridge

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  • USS Somerset (LPD-25)
  • The USS Somerset (LPD-25), a San Antonio-class amphibious transport dock, is the fifth ship of the United States Navy of that name; in this case in honor of Somerset County, Pennsylvania.
  • The name honors the passengers of United Airlines Flight 93 whose actions prevented terrorist hijackers from reaching their intended target, forcing the airplane to crash in Stonycreek Township in Somerset County, PA, on September 11, 2001. In the words of Secretary of the Navy Gordon R. England, “The courage and heroism of the people aboard the flight will never be forgotten and USS Somerset will leave a legacy that will never be forgotten by those wishing to do harm to this country.”
  • Some 22 tons of steel from a crane that stood near Flight 93’s crash site have been used to construct Somerset’s stemhold.
  • She was launched on 14 April 2012, and was christened three months later, on 28 July.

USS Somerset LPD-25

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  • HMS Medway
  • HMS Medway was the first purpose-built submarine depot ship constructed for the Royal Navy. She was built by Vickers Armstrong at Barrow-in-Furness during the late 1920s. The ship served on the China Station before the Second World War and was transferred to Egypt in early 1940.
  • Ordered to evacuate Alexandria in the face of the German advance after the Battle of Gazala in May 1942, Medway sailed for Lebanon at the end of June, escorted by a light cruiser and seven destroyers.
  • Despite her strong escort, she was torpedoed and sunk by a German submarine on 30 June.

hms_medway

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  • HMS Warwick (D-25)
  • HMS Warwick (D-25) was an Admiralty ‘W’ class destroyer built in 1917.
  • She saw service in both the First and Second World Wars, before being torpedoed and sunk in February 1944.

hms_warwick_d25

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  • T-25 Tank
  • The T25 Medium Tank was a prototype tank that was produced by the United States during World War II.
  • It had an armament consisting of a 90 mm anti-tank gun, two .30 MGs, one mounted coaxially and one in the bow, and a .50 Browning M2 mount on top of the turret. The vehicle had a crew of five, a weight of 35,100 kg, used the same 474 hp, GAN V8 engine as the earlier T23, and had a top speed of 48 km/h.
  • The T25 was developed with a variant which itself was virtually the same, the only difference was that the T25 was built with horizontal volute spring suspension, and the variant T25E1 had the torsion bar suspension later adopted for use in the M26. Only 40 T25 and T25E1 prototypes were built.

T25-medium-tank-01

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  • M25 “Three Shot Bazooka”
  • Bazooka is the common name for a man-portable recoilless antitank rocket launcher weapon, widely fielded by the United States Army. Also referred to as the “Stovepipe”, the innovative bazooka was among the first-generation of rocket propelled anti-tank weapons used in infantry combat.
  • Featuring a solid rocket motor for propulsion, it allowed for high-explosive anti-tank (HEAT) warheads to be delivered against armored vehicles, machine gun nests, and fortified bunkers at ranges beyond that of a standard thrown grenade or mine. The Bazooka also fired a HESH round, effective against buildings and tank armour.
  • The universally-applied nickname arose from the M1 variant’s vague resemblance to the musical instrument called a “bazooka” invented and popularized by 1930s U.S. comedian Bob Burns.
  • The M25 “Three Shot Bazooka” was an experimental tripod mounted rocket launcher with overhead magazine circa 1955.

M25Bazooka

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  • Remington R-25
  • The Remington R-25 is a hi-tech hunting rifle that uses the direct-impingement gas system, where gas is ported down a tube into the action and the bolt carrier is cycled via the gas blowing the carrier off the tube.
  • The upper and lower receivers are made from aluminum forgings, and the handguard is turned aluminum, all impervious to the weather; climate changes will have no effect on accuracy or bedding.
  • Additionally, the R-25 has a Mossy Oak Treestand coating, so if you aren’t careful in the woods, you may spend some time hunting for the rifle you set down while doing something else.
  • The magazine holds four rounds, a prudent choice since the purpose of the R-25 is hunting.

Remington r-25- rifle

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  • Glock 25
  • The Glock 25 in low-recoil .380 AUTO was introduced in 1995 in Germany. This small-dimension firearm was developed for markets where civilian personnel are not allowed to possess handguns featuring military calibers.
  • In the USA, the G25 .380 AUTO is reserved for law enforcement agencies only.

glock25

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  • Zastava P25
  • The Zastava P25, manufactured by Zastava Arms of Serbia and nicknamed the Dark Lady, is a blowback-operated, single-action, semi-automatic pocket pistol chambered in .25 ACP.
  • The pistol frame is made of aluminum alloy and the barrel is made of alloy steel, while the handgrips are usually made of walnut or polymer materials.
  • The P25 is aimed extensively at the civilian market as a self-defense weapon due to its concealability, but is somewhat less favorable compared to the M57, M88 and CZ 99 pistols due to its small caliber.

Zastava-p25

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  • A&K SR-25
  • The A&K SR-25 Full Metal AEG is very accurate and a good  range for this type of weapon It is semi and full auto capable and has a 300rd High Capacity magazine and fast rate of fire
  • This airsoft sniper rifle is built like a tank, with a full metal upper and lower receiver and a full metal rail system. The A&K SR-25 performs better than almost all other SR-25 AEGs on the market, and includes more accessories than any other SR-25 AEG.

AK-SR25-Sniper Rifle

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  • K-25
  • K-25 is a former uranium enrichment facility of the Manhattan Project which used the gaseous diffusion method. The plant is located in Oak Ridge, Tennessee, on the southwestern end of the Oak Ridge Reservation.

K-25 former uranium enrichment facility Oak Ridge, Tennessee

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In other stuff

  • Illinois is the 25th largest state in America.
  • Nashville, Tennessee is the 25th largest city in the United States by size of population.
  • South Africa is the 25th largest Country in the world by area.
  • France is the 25th richest country in the world, based on Gross Domestic Product (PPP) Per Capita 2009-2013.
  • There are 25 cents in a quarter.

quarter dollar

  • A ‘Pony’ is British slang for £25.
  • Christmas Day is December 25
  • 25 is the number of years of marriage marked in a silver wedding anniversary.
  • 25 is the name of the national card game of Ireland related to the classic Spanish game of ombre. It was played under the name maw by the British King James I and was later called spoil five from one of its principal objectives. From it derives the Canadian game of forty-fives.
  • Pachisi, which is Hindi for 25, is the name of the national board game of India.

Pachisi

  • “twentyfive”, is a design studio in the Czech Republic
  • 25 is the total number of playable characters in Mario Kart Wii and Super Smash Bros. Melee.
  • “25 boy” (read as “two-five boy”), in Cantonese Chinese, is a slang term meaning “traitor” as used in the Chinese movie Over the Edge.
  • 25 random things about me, an Internet meme utilizing Facebook’s Notes feature
  • 25 is the usual minimum age for car rental in most countries.
  • “Under 25″ provides a common cut-off point for designating youth.
  • The year 25 BC was a leap year.
  • 25 Burgers opened its first Location in Bound Brook NJI in the Spring of 2009, serving 25 Choices of Fresh Made to Order Gourmet Burgers in a Clean and Friendly Environment.

25 burgers logo 

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Significant Number Factoid Friday – Today The Number Is Twenty-Eight 28

“Fight Against Stupidity And Bureaucracy”

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It’s been a few weeks since we had a numbers factoid. Today we are having a look at the number twenty-eight, so if that’s your lucky number or your date of birth or if you are just interested in numbers and things associated with them then read on.

And enjoy.

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The Number Twenty-Eight 28

 28

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In religion

  • In Hebrew, the first verse of the Bible “In the beginning God created the heavens and the earth” (Genesis I.1) has seven words and 28 letters.
  • The length of one curtain shall be eight and twenty cubits. (Exodus, 26.2)
  • The length of one curtain was twenty and eight cubits, and the breadth of one curtain four cubits: the curtains were all of one size. (Exodus, 36.9)
  • In Chapter 28 in Genesis: Isaac blesses Jacob; Jacob’s Ladder; God’s promise; Stone of Bethel:
Artistic impression of Jacob's Ladder
Artistic impression of Jacob’s Ladder

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In mathematics

  • 28 is a composite number, its proper divisors being 1, 2, 4, 7, and 14.
  • Twenty-eight is the second perfect number. As a perfect number, it is related to the Mersenne prime 7, since 22(23 – 1) = 28. The next perfect number is 496, the previous being 6.
  • Twenty-eight is a harmonic divisor number, a happy number, a triangular number, a hexagonal number, and a centered nonagonal number.
  • Twenty-eight is the ninth and last number in early Indian magic square of order 3.
  • There are twenty-eight convex uniform honeycombs.

In science & technology

  • 28 is the atomic mass of silicon and the atomic number of nickel.
  • 28 is the molecular weight of nitrogen, (N2 = 28.02) and the molecular weight of carbon monoxide, (CO = 12 + 16 = 28.01); also interesting in that while carbon monoxide is poisonous, nitrogen is essential to life, yet they have the same molecular weight of 28 daltons.
  • 28 is the fourth magic number in physics.
  • The average human menstrual cycle is 28 days although no link has been established with the nightlighting and the Moon.
  • Skin research has discovered that the epidermis is constantly regenerating itself, and all of its cells are replaced every 28 days.
  • By the age of fourteen most people have 28 permanent teeth; the last four molars, the wisdom teeth, erupt only if the jaw allows space for them.
  • The curing time of concrete is classically considered 28 days.

In space

  • Our universe is 28 billion light years in distance from edge to edge.
  • The revolution time of the surface of the Sun on itself is 28 days while its core is revolving in 33 days.
  • The moon completes 4 phases once it has wandered through the 28 lunar mansions.
  • 28 Bellona is a large main belt asteroid between Mars and Jupiter. Bellona was discovered by R. Luther on March 1, 1854. It is named after Bellona, the Roman goddess of war; the name was chosen to mark the beginning of the Crimean War. Its diameter is 120.9 km, rotation period of 15.7 hours, and orbital period of 4.63 years.
  • The New General Catalogue object NGC 28, an elliptical galaxy in the constellation Phoenix.
  • Messier object M28 is a magnitude 8.5 globular cluster in the constellation Sagittarius.
Messier object m28
Messier object m28

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  • STS-28
  • STS-28 was the 30th NASA Space Shuttle mission, and the fourth dedicated to United States Department of Defense purposes. It was also the eighth flight of Space Shuttle Columbia.
  • The mission launched on 8 August 1989 and traveled 2.1 million miles during 81 orbits of the Earth, before landing on runway 17 of Edwards Air Force Base, California, on 13 August.
  • The mission details of STS-28 are classified, but the payload is widely believed to have been the first SDS-2 communications satellite.
  • The crew consisted of Commander Brewster H. Shaw, Jr., Pilot Richard N. Richards, and three Mission Specialists, James C. Adamson, David C. Leestma and Mark N. Brown.

Sts-28-patch

  • Space Shuttle Challenger
  • One of the worst space related disasters happened on January 28 1986.
  • On that fateful day Space Shuttle Challenger (mission STS-51-L) broke apart 73 seconds into its flight, leading to the deaths of its seven crew members.
  • The spacecraft disintegrated over the Atlantic Ocean, off the coast of central Florida at 11:38 EST (16:38 UTC). Disintegration of the entire vehicle began after an O-ring seal in its right solid rocket booster (SRB) failed at liftoff. The O-ring failure caused a breach in the SRB joint it sealed, allowing pressurized hot gas from within the solid rocket motor to reach the outside and impinge upon the adjacent SRB attachment hardware and external fuel tank. This led to the separation of the right-hand SRBs aft attachment and the structural failure of the external tank. Aerodynamic forces promptly broke up the orbiter.
  • The crew compartment and many other vehicle fragments were eventually recovered from the ocean floor after a lengthy search and recovery operation. Although the exact timing of the death of the crew is unknown, several crew members are known to have survived the initial breakup of the spacecraft. However, the shuttle had no escape system and the impact of the crew compartment with the ocean surface was too violent to be survivable.
  • The disaster resulted in a 32-month hiatus in the shuttle program and the formation of the Rogers Commission, a special commission appointed by United States President Ronald Reagan to investigate the accident. The Rogers Commission found NASA’s organizational culture and decision-making processes had been key contributing factors to the accident. NASA managers had known contractor Morton Thiokol’s design of the SRBs contained a potentially catastrophic flaw in the O-rings since 1977, but failed to address it properly. They also disregarded warnings from engineers about the dangers of launching posed by the low temperatures of that morning and had failed to adequately report these technical concerns to their superiors.
  • What Rogers did not highlight was the fact the vehicle was never certified to operate in temperatures that low.
  • Many viewed the launch live because of the presence of crew member Christa McAuliffe, the first member of the Teacher in Space Project and the (planned) first female teacher in space.
  • The Challenger disaster has been used as a case study in many discussions of engineering safety and workplace ethics.


In politics

  • 28th President of the United States is Woodrow Wilson (1856-1924), who served (1913-1921). Wilson was President of Princeton University (1902-1910), where he graduated (1879) and taught as Professor of Jurisprudence & Political Economy (1890-1902). Wilson won the 1919 Peace Nobel Prize.
President Woodrow Wilson portrait December 2 1912
President Woodrow Wilson portrait December 2 1912

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  • 28th State to enter the Union is Texas (December 29, 1845)

texas

In sport

  • The jersey number 28 has been retired by several North American sports teams in honor of past playing greats or other key figures:
  • In Major League Baseball: the Minnesota Twins, for Hall of Famer Bert Blyleven.

bert blyleven

  • In the NFL: the Chicago Bears, for Willie Galimore; the Kansas City Chiefs, for Abner Haynes; the New York Jets, for Hall of Famer Curtis Martin; the St. Louis Rams, for Hall of Famer Marshall Faulk.

marshall faulk

  • Car number twenty-eight was formerly run in the NASCAR Sprint Cup Series by Yates Racing. The most notable driver was Davey Allison, who had the ride for his entire Cup Series career.

car 28

  • Baseball’s 28th All-Star Game was played at Municipal Stadium, Kansas City, Missouri, on July 11, 1960.
  • In the British game of cricket, the wicket is made of three wooden stakes each 28 inches high stuck into the ground.
  • The widely used 6-6 domino set contains 28 pieces. 

In books, music and movies

  • In Quebec, Canada, François Pérusse, made a parody of Wheel of Fortune in which all of the letters picked by the contestant were present 28 times. As a result, 28 became an almost Mythical number used by many Quebec youths, the phrase “Y’en a 28” (There are 28 [Letters]) became a running gag still used and recognized more than 15 years later.
  • The Preludes, Opus 28 consists of Frédéric Chopin’s 24 preludes for piano, ordinarily but not necessarily played together in concert.
  • 28 Days (2000) is a 104-minute movie directed by Betty Thomas and starring Sandra Bullock, Viggo Nortensen, Dominic West, Diane Ladd. A big-city newspaper columnist is forced to enter a drug and alcohol rehab center after ruining her sister’s wedding and crashing a stolen limousine.
  • 28 Days Later (2002). Four weeks after a mysterious, incurable virus spreads throughout the UK, a handful of survivors try to find sanctuary.
  • 28 Weeks Later (2007). Six months after the rage virus was inflicted on the population of Great Britain, the US Army helps to secure a small area of London for the survivors to repopulate and start again. But not everything goes to plan.  
  • 28 Hotel Rooms (2012). A novelist and an accountant meet while they are traveling for work, and though they both are in relationships, their one-night stand could become something more.

28 Hotel Rooms

In militaria, shipping and aviation

  • T-28 Trojan
  • T-28 Trojan is a training military aircraft. In 1948 the U.S. Air Force originally acquired the T-28A as a trainer to replace the venerable AT-6. The T-28B and T-28C were acquired by the U.S. Navy and included a tailhook for carrier landing training. T-28 was shown on Card #15 of Topps Wings: Friend or Foe (1952).

 T-28B_VT-2_over_NAS_Whiting_Field_c1973

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  • Miles M.28 Mercury
  • The Miles M.28 Mercury was a British aircraft designed for either training or communications during the Second World War. It was a single-engine, monoplane of wooden construction with a twin tail and a tailwheel undercarriage with retractable main units.
  • Originally, the M.28 had been planned as a replacement for the Whitney Straight and Monarch, but this was shelved when war broke out.
  • In 1941, the project was revived in response to a requirement for a training and communications aircraft. The design was produced as a private venture by Ray Bournon using Miles’ normal wooden construction. The resulting machine introduced several features not found on trainers ncluding retractable undercarriage and trailing edge flaps. In the communications role, the M.28 had four seats and a range of 500 miles (800 km).
  • Owing to Miles’ heavy commitment to war-production, however, only six aircraft were built, of slightly varying specifications, the last being the Mercury 6 which first flew in early 1946.  Examples were operated in the United Kingdom, Germany, Switzerland and Australia.

Miles_M.28_Mercury .

  • XB-28
  • The North American XB-28 (NA-63) was an aircraft proposed by the North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered into full production, with only two aircraft having been built.

North_American_XB-28

  • MiG-28
  • The MiG-28 is a fictional aircraft that has appeared in several different unrelated works. These fictional aircraft have been independently created and the aircraft share nothing but a name.
  • The first instance of a “MiG-28” was in the 1978 Quiller novel The Sinkiang Executive written by Adam Hall. Referred to in the work as the MiG-28D, it was an aircraft that resembled a somewhat modified MiG-25, but with sharper air intakes and swept wings.
  • In the 1986 film Top Gun, Lt. Pete “Maverick” Mitchell (Tom Cruise) squared off against MiG-28s of unspecified nationality. These were actually US Northrop F-5s, which at the time were being used as aggressor aircraft for dissimilar air combat training at the real TOPGUN seminar (now known as the United States Navy Fighter Weapons School). The F-5s “acting” as MiG-28s were painted flat black to indicate their villainous status, and retained those paint jobs after production closed. The paint also increased the aircraft’s visibility, a plus for filmmaking.
  • Another MiG-28 is “seen” in the 1988 ABC television series Supercarrier. This MiG-28 was a fictional Soviet stealth fighter. An F-16 fighter in Soviet-style markings was used to “simulate” the Soviet fighter.
Top Gun pretendy MiG-28
Top Gun pretendy MiG-28

  • Fokker F-28 Fellowship
  • The Fokker F28 Fellowship is a short range jet airliner designed developed in Holland (1964) and assembled by defunct Dutch aircraft manufacturer Fokker. The Fokker F-28 Fellowship jet was to complement Fokker’s highly successful F-27 turboprop.
  • Announced by Fokker in April 1962, production was a collaboration between a number of European companies, namely Fokker, MBB of West Germany, Fokker-VFW (also of Germany), and Short Brothers of Northern Ireland. There was also government money invested in the project, with the Dutch government providing 50% of Fokker’s stake and the West German government having 60% of the 35% German stake.
  • In total 241 Fokker F-28s were sold, including 160 in commercial service and 10 used as corporate jets.
  • The Fokker F-28 shown on a 40¡ Nauru stamp. Postage stamps with Fokker airplanes

Fokker_F-28-Fellowship

  • Enstrom F-28
  • The Enstrom F-28 and 280 are a family of small, light piston-engined helicopters produced by the Enstrom Helicopter Corporation.[1]
  • Since delivering their first helicopter shortly after Federal Aviation Administration type certification of the F-28 model in April 1965, Enstrom helicopter has produced (as of 2007) approx 1,200 aircraft.[2]
  • The company produces three models, the F-28, the more aerodynamic 280 and the turbine-engined 480, each with their own variants. The F-28 and 280 both use Lycoming piston engines virtually identical to those found in general aviation fixed-wing aircraft

Enstrom_280FX_Shark_helicopter. 

  • T-28 Tank
  • The Soviet T-28 multi-turret medium battle tank was among the world’s first medium tanks and became a symbol of the Red Army as was its heavier “brother” the T-35. Its silhouette is well known from pre-war newsreel about Soviet military parades in Moscow’s Red Square.
  • 41 T-28 tanks were built in 1933 with hightest production of 131 in 1939. In the summer of 1941, the design of the T-28 became obsolete due to the drawbacks of multi-turret vehicles. The T-28 could hit any German tank from long distances.

T28_parola_1 .

  • The B28
  • The B28, originally Mark 28, was a thermonuclear bomb carried by U.S. tactical fighter bombers and bomber aircraft. From 1962 to 1972 under the NATO nuclear weapons sharing program, American B28s also equipped six Europe-based Canadian CF-104 squadrons known as the RCAF Nuclear Strike Force. It was also supplied for delivery by UK-based Royal Air Force Valiant and Canberra aircraft assigned to NATO under the command of SACEUR. Also USN carrier based attack aircraft such as the A3D Skywarrior and the A4D Skyhawk were equipped with the MK 28.

Mk_28_F1_Thermonuclear_Bomb .

  • HMS Kandahar (F28)
  • HMS Kandahar (F28) was a K-class destroyer of the Royal Navy, named after the Afghan city of Kandahar.
  • Kandahar was launched on 21 March 1939, and on 21 February 1941, in company with HMS Kimberley and HMS Manchester, she captured the German blockade runner SS Wahehe off Iceland. On 19 December 1941, she was part of British Force K, tasked to intercept an Italian convoy bound for Tripoli when she was irreparably damaged by a newly laid Italian mine whilst attempting to rescue the stricken HMS Neptune. She was scuttled the next day by Jaguar. 73 men went down with the ship.

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  • HMS Cleopatra (F28)
  • HMS Cleopatra (F28) was a Leander-class frigate of the Royal Navy, built at HMNB Devonport. She was launched on 25 March 1964 and commissioned on 4 January 1966.
  • Upon Cleopatra’s commissioning, she joined the 2nd Destroyer Squadron, Far East Fleet and then participated in the Beira Patrol, which was designed to prevent oil reaching the landlocked Rhodesia via the then Portuguese colony of Mozambique (Lorenzo Marques).
  • In 1969, Cleopatra was present at the Evans-Melbourne collision.
  • In 1972, Cleopatra took part in escort duties during the Queen and Duke of Edinburgh’s South East Asia tour.
  • In 1973, Cleopatra was dispatched to protect British trawlers against the Icelandic Coast Guard in the Second Cod War.
  • Afterwards, Cleopatra began her modernisation, becoming the first Batch Two Leander to do so, which included the removal of her one twin 4.5-in gun to allow the addition of the Exocet anti-ship missile system.
  • On 31 January 1992, Cleopatra was decommissioned. The following year, Cleopatra was sold for scrap.

HMS_Cleopatra_(F28) .

  • Mosin–Nagant M/28
  • The Mosin–Nagant is a bolt-action, internal magazine-fed, military rifle created under the government commission by Russian inventors, and used by the armed forces of the Russian Empire, the Soviet Union and various other nations.
  • It has gone through many variations, the M/28 designed by the White Guard. The M/28 differs from the Army’s M/27 primarily in the barrel band design, which is a single piece compared to the M/27’s hinged band, and an improved trigger design. Barrels for the M/28 were initially purchased from SIG, and later from Tikkakoski and SAKO.
  • The M/28-30 is an upgraded version of the M/28. The most noticeable modification is a new rear sight design.

Mosin_Nagant_series_of_rifles.

  • Smith & Wesson (S & W) Model 28
  • The most famous handgun with the 28 designation is the Smith & Wesson (S & W) Model 28, also known as the Highway Patrolman. It is an N-frame revolver chambered for the .357 Magnum cartridge, in production from 1954 to 1986. It is a budget version of the S&W Model 27.

Smith_Wesson_M27_-_M28_Highway_Patrolman

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Other stuff

  • The Roman numeral for 28 is XXVIII.
  • The Arab alphabet has 28 letters
  • Cities located at 28o latitude include: New Delhi, India.
  • Cities located at 28o longitude include: Johannesburg, South Africa; Pretoria, South Africa; and Istanbul, Turkey.
  • 28 is not yet used as the code for international direct dial phone calls.
  • Two Cleveland skyscrapers have 28 floors, the McDonald Investment Center (1969): East 9th St. at Superior Ave. (305 ft);and the Marriott at Key Tower (1991): 127 Public Square, Cleveland (320 ft)
  • Parker Brothers Monopoly board game consists of 40 squares with 28 properties for sale. In the U.S. version, the properties are named after locations in Atlantic City, NJ.

monopoly board

  • The Runik alphabet, also called Futhark, used by Germanic peoples of northern Europe, Britain, Scandinavia, and Iceland (3rd century to the 16th or 17th century AD) has 28 letters.
  • In Gematriya, the system of Hebrew Numerology, the number 28 corresponds to the word koakh, meaning “power”, “energy”.
  • The number of days in the shortest month of the Gregorian calendar, February (except in leap years, when there are twenty-nine).
  • The Gregorian calendar follows a 28-year cycle for the most part, since there are seven days in a week and leap year generally occurs every four years; usually, a calendar from any year is the same as that from 28 years earlier (e.g., 2008 and 1980 or 2009 and 2037). However, that rule holds only when there have been exactly seven leap days in a 28-year interval; years divisible by 100 but not by 400 are not leap years. Indeed, 1900 (as well as 2100, 2200, etc.) does not use the same calendar as 1872 (2072, 2172, etc., respectively) for the simple reason that 1900 is not a leap year. In 28 years, any day-of-the-week and date combination occurs exactly four times. February 29 will fall on each day of the week once.
  • In Jewish tradition there is a 28 year solar cycle in which the sun returns to its place in Creation every 28 solar years. This is commemorated in April every 28 years with the recitation of Birkat Hachama, the blessing of the sun.
  • There are 28 wheels on a Lockheed C-5 Galaxy.

Lockheed C-5 Galaxy

  • 28 is the common name for the parrot ‘Barnardius zonarius semitorquatus’, widely distributed in Western Australia and South Australia, because its call sounds like “wenniate”.
  • In neo-Nazi circles, twenty-eight indicates Blood and Honour (28 = BH – B – second letter of the alphabet and H – the eight letter).
  • The number of Chinese constellations, “Xiu” or “mansions” (a literal translation), equivalent to the 12 western zodiac constellations.
  • 28 is the postal code of the province of Madrid, in Spain.
  • Twenty Eight is a popular game played in Kerala India.
  • 28 is the number of the French department Eure-et-Loir.
  • There are approximately twenty-eight grams in an ounce, a measure frequently used in the illegal drug trade.
  • In horticulture the America and Cherish Roses have 28 orange pink petals; the Black Velvet Rose has 28 dark red petals; the Maestro Rose has 28 petals with a red center, pink edges and speckles; the Garden Party Rose has 28 white blend petals; and the Ophelia Rose has 28 light pink petals.

ophelia-rose. 

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