The north side of the bridge is Tower Hill, and the south side of the bridge comes down into Bermondsey, an area in Southwark. Tower Bridge is far more visible than London Bridge, which people often mistake it for. Many tourists go to London to see the Tower Bridge. It has its own exhibition centre in the horizontal walkway. This gives one of the best vantage points in London.
The "bascules" are the surfaces raised to allow tall ships to pass through: this happens about 900 times per year. The bridge's decks (bascules) can be raised to 83 from the horizontal.
The City of London Corporation held a competition for the design in 1876. Over 50 designs were entered, and in 1884 Horace Jones and John Wolfe Barry's design was chosen.
Workers began to build the Tower Bridge in April 1886 and the bridge was opened in 30 June 1894.
In June 2012, the bridge was highlighted on the route of Queen Elizabeth II's Diamond Jubilee Pageant on the Thames.
The bridge is in length with two towers, each high, built on piers. The central span of between the towers is split into two equal bascules or leaves, which can be raised to an angle of 83 to allow river traffic to pass. The bascules, weighing over 1,100 tons each, are counterbalanced to minimize the force required and allow raising in five minutes. The bascules are raised by huge hydraulic pumps which were first powered by steam engines. In 1976 these were replaced by oil and electricity. The bridge is made from more than 11,000 tons of steel, and covered with Cornish granite and Portland stone.
The two side-spans are suspension bridges, each long, with the suspension rods anchored both at the abutments and through rods contained within the bridge's upper walkways. The pedestrian walkways are above the river at high tide. These walkways allow people to still cross the river, even when the bridge is raised. They were closed in 1910 because not enough people used them, but were reopened in 1982.
Waiter
A waiter is a person who "waits" on tables, often at a restaurant or cafe. A female waiter is called a waitress. They will take orders and delivers food to customers. A good waiter can also help the customers by recommending the best food in the restaurant or cafe.
Many waiters and waitresses are required by their employers to wear a uniform. Most uniforms used are black and white or all black. Historically the term waiter was used to describe customs officers who waited on the tide for vessels to come in carrying goods to tax.
Steven Spielberg
Steven Allan Spielberg (born December 18, 1946) is an American filmmaker.
He was born to an Orthodox Jewish family in Cincinnati, Ohio. His parents were pianist Leah Adler (1920–2017) and engineer Arnold Spielberg (1917–2020). He started his movie career learning to direct in 1975. He was raised in Haddon Township, New Jersey. Spielberg studied at Saratoga High School. He went to California State University, Long Beach.
Spielberg started his career learning how to direct in 1963. His first movies include "Jaws", "Jurassic Park", "Indiana Jones", and "E.T. the Extra-Terrestrial". His later movies include "Saving Private Ryan" and "Munich".
Spielberg helped establish the PG-13 rating for the Motion Picture Association of America.
Spielberg married Amy Irving in 1985. They divorced in 1989. He married Kate Capshaw in 1991.
Spielberg won two Academy Awards for best director. These two awards were for "Schindler's List" and "Saving Private Ryan". In 1986, he won the BAFTA Academy Fellowship Award, a Lifetime Achievement Award. He has been nominated and has won several other awards.
In Oscar acceptance speeches given since 1966, Spielberg holds the record for being thanked the most at 43 mentions, more than God and beating Harvey Weinstein who was thanked 34 times.
Variable
A variable is a special type of amount or quantity with an unknown value. The opposite of a variable (that is, a known value) is called a constant.
In mathematics, a variable is usually given a letter, such as "x" or "y". For example:
Most letters are used in equations to show numbers that are unknown (an exception is "e", which is a constant). Using a type of math called algebra, one can find the value of the variable.
Any number cannot change its value. This is true whether the number is rational (such as -8.625) or irrational (such as 2√3, which is 2 multiplied by the square root of 3), or whether the number is real (such as formula_1) or imaginary (such as formula_2).
Variables are also common in science, where they usually represent physical properties that do not stay the same. For example, if a person stands 5 feet away from a building, the "distance" variable compared to the building does not change over time. 5 feet is called a "fixed amount", which is the opposite of a variable amount. But if a person walks away from the building, the distance variable compared to the building is increasing. So it does not have the same value and we cannot use the same number for it, as the distance might be 1 foot now, but 2 feet a second later.
In computer science, a variable is a value in a program that can change. It does not have to be a number. In fact, it can be a string (text value), a date, an amount of money, an object such as a picture, or simply (which means it has no content). The value that is stored in a variable can change the behavior of a program when it is run. Because of this, variables are commonly used to store input and output values.
Each programming language works differently with variables. Most of them allow any character string that is not "reserved" (that is, has a special meaning) to be the name of the variable. It is good in computer programming to use names that tells what will be stored in the variable (such as "person", "age", "total", and so on). Also, some languages like C and Java require the data type of the variable (that is, the kind of content that will be stored in it) to be declared (written) when the variable is created. Others, like Python and Visual Basic, do not have this rule, which allows the type of variable to be changed when a new value is stored in it.
Salvador Allende
Salvador Allende Gossens (June 26, 1908 – September 11, 1973) was a physician, senator, minister of health and the 28th President of Chile from November 3, 1970 until his death on September 11, 1973. He was a socialist and the first socialist president elected democratically (voted for by people) in South America.
Salvador was in politics for nearly forty years, having been a senator, deputy, and cabinet minister. He had run for president in 1952, 1958 and 1964, but had failed. He won as the leader of the Popular Unity coalition (a group of political parties) in a very close race.
Allende was born on June 26, 1908 in the port city of Valparaiso, Chile to a well-to-do family. Like many Chileans, Allende had a mestizo (mixed) racial background (European and other races mixed with Native Americans). His father Salvador Allende (senior), a lawyer, was of Basque background and his mother Laura Gossens had a Belgian Jewish background (though converted to Catholicism).
In 1918 his father sent Allende to study at the "Instituto Nacional" (National Institute) in Santiago. He then did his compulsory military service and entered the University of Chile to study medicine. Allende was a gifted, friendly and popular student; a great debater and public speaker and quickly becomes a student leader and vice-president of the FECH. (Student Federation of Chile). As an undergraduate student Allende requested to his parents to let him earn his own livelihood and he started to work as a paramedic in the ambulance services and as an assistant in pathology. He graduated with a medical degree in 1933.
He was one of the founders of the Socialist Party of Chile and in 1938 became a minister of health. He was a senator from 1945 until 1969 and was President of the Chilean Senate from 1966 until 1969.