"You Are Now Entering the X Sector"

Upvote:1

Sector is a mathematical word meaning a portion of a circle bounded by two radii and an arc. This is the meaning used by the "X sector" signage in occupied Berlin, as the various Allied occupation zones approximate sectors about the city center:

Allied occupation in Berlin (1945-1990)

An earlier usage of "sector" to describe geographical areas would be the sector model of urban planning (1930s), where different types of land use are constrained to sectors radiating from a Central Business District. The advantage of this model is that the city can grow outwards in the same layout.

"Sector" has also been used metaphorically, as in "the sectors of the Hospitality industry". I believe this usage stems from the popularity of the pie chart, which dates to 1801.

congusbongus 14467

📝 When did the Chinese begin using night soil as fertilizer?
📝 Did German aircraft operate off Lebanon in 1941?
📝 Why is there less public attention on the firebombing of Japan compared to its atomic bombing?
📝 What does this sentence from the Romance of the Three Kingdoms mean?
📝 What is the oldest known international sporting event?
📝 What uniform are these gentlemen wearing?
📝 Did the British really bail out the Americans at the Battle of the Bulge?
📝 If SS Californian were within 5 miles of Titanic, could she have saved more passengers?
📝 When did Tsar Nicholas II become Tsar of Russia?
📝 Why didn't Germany bomb the crap out of Stalingrad to win the city?
📝 Baldwin IV, the Leper King
📝 What were the 52 kinds of victims persecuted by the Nazis?
📝 When were soldiers compensated with land grants?
📝 How long does it take to craft the kinds of armour worn by typical medieval warriors in europe?
📝 Why were Axis bombings deadlier than Allied ones?
📝 How did Castro gain control over the Cuban military and police?
📝 Did technical managers have to join the Nazi party?
📝 Were Jefferson and Madison Jacksonians?
📝 Who was in charge of the Barysaw massacre (20 October 1941)?
📝 How do historians verify historical claims?
📝 Noah Versus Utnapishtim
📝 Why was A.K.Gastev purged in 1939?
📝 Who is "Rhadir of Seville"?
📝 Were repeating rifles pitted often against breach-loaders in American Civil War battles and what happened?
📝 How "excellent" were relations between American soldiers and the Vietnamese people?
📝 What evidence do we have that disabled people became shamans in pre-historic times?
📝 Fulvia in Sallust's Catiline Conspiracy the same Fulvia as Mark Antony's wife?
📝 Were iconic structures intentionally destroyed in 20th century wars?
📝 Sources for historical information about the life and career of Basil Zaharoff?
📝 What is the evidence to claim that political order in ancient Rome was sufficiently different under "kingdom", "republic" and "empire"?

Source: stackoverflow.com

Travel Tips

Search Posts

📝 "You Are Now Entering the X Sector"
📝 Is it true that there are more slaves in the world now than ever at one point in history?
📝 Why are the German and French languages so different?
📝 What are the factors that caused the new world civilizations to be less technologically advanced than the old world?
📝 (Why) are there two different versions of the photograph of inmates at the Buchenwald concentration camp?
📝 Are there any accounts of everyday life during the Black Death?
📝 Why are military uniforms often flared or poofy above the knee?
📝 Why are many African-Americans in Mississippi concentrated in the northwestern area?
📝 Are there photos/footage of the Titanic sinking?
📝 How would a king's servants prove that they are on a task given by the king?
📝 Are modern Greeks related to the ancient Greeks?
📝 How did the American Civil War help the U.S economy recover from the Panic of 1857 given that civil wars are extremely destructive?
📝 Is there a historical explanation as to why the USA people are so litigious compared to the French?
📝 Why is this Latin text black but the Latin numerals are red?
📝 Why are there so many laws about eye injuries in the Code of Hammurabi?
📝 Are there any documented examples of wooden ships which were in active service for 100 years or more? If not, what is the longest?
📝 Why are the signatures on the United States Declaration of Independence structured as they are?
📝 What are the text and subtext of this 1949 Soviet cartoon?
📝 Are there historical instances of the capital of a colonising country being temporarily or permanently shifted to one of its colonies?
📝 Why are the USA and Canada's states border so straight?
📝 Why are the French and Indian Wars / Seven Years' War not considered WW 1?
📝 Are tanks the only reason for the abandonment of trench warfare?
📝 What are some Chinese sources testifying the extreme weather events of 535-536 CE?
📝 Where are the Native American primary source documents?
📝 Why was the area now known as Liberia chosen as the location for repatriation of African slaves in the US?
📝 Is there any documentation that indicates the Aztecs were as violent as they are made out?
📝 Why are the majority of Dresden inhabitants atheists or agnostics?
📝 Who are the three men standing and what are they holding at this University of Paris Doctors' Meeting?
📝 What are the primary sources for the Mongol sack of Baghdad?
📝 Are steam engines still in regular use anywhere in the world?

"You Are Now Entering the X Sector"

More post

Search Posts

Related post