The International System of Units is a standard that is agreed on by most countries. In it there is metre (or meter). It measures length. A rod (made from a special material) is in Paris. The length of the rod said, years ago, how long a meter is. When people wanted to measure something, they compared it to the length of the rod. For practical purposes, the length of the rod was divided by 10 (to get dezimeter), by 10 (to get centimeter), and so on.
The iridium rod as it is called is the original measure of meter. Now new ways of measuring the meter have been utilized such as the measuring the wavelength of radiation from a certain chemical element to determine an exact meter.
A standard in music is a song that remains very popular, and is performed and recorded by many different artists. Such songs include "Sentimental Journey" written by Les Brown and Ben Homer, "Yesterday" and "Something" by members of The Beatles. Many of Hank Williams's songs have become standards in country music.
Ginkgo
The ginkgo is a genus of trees. There is only one living species, "Ginkgo biloba". All the other known species are fossils. "Ginkgo biloba" is native to China. It is the National tree of China.
Mean
In mathematics and statistics, the mean is a kind of average. Besides the mean, there are other kinds of average, and there are also a few kinds of mean.
The most common mean is the arithmetic mean, which is calculated by adding all of the values together, then dividing by the number of values.
For example, if 1, 2, 2, 100, 100 is a set of numbers or scores. If we add all the numbers, the answer is 205. By dividing this number by the number of numbers (5), we find that the mean is 41. The difficulty with this particular set of numbers is that no one in this group scored anything like a 41, and it does not tell us much about what kind of scores these numbers represent.
In general, to find the average of formula_1 numbers, the formula_1 numbers are added and the total is divided by formula_1.
In symbols, if the numbers are formula_4, formula_5, formula_6, ... formula_7, the total is:
The total is divided by formula_1 to make the average:
If formula_4, formula_5, formula_6, ..., formula_7 are all the numbers in a sample formula_15, then this average is also called the sample mean of formula_15, and represented by the symbol formula_17.
The idea behind the mean is to represent a number of measurements, or values, by one value only. But there are different ways to calculate such a representing value.
If people do many different measurements, they will get many different results. Those results have a certain distribution, and they can also be centered around an "average" value. This average value is what mathematicians call arithmetic mean.
Mean can also stand for expected value. For a random variable formula_15, this is represented by the symbol formula_22.
Detergent
A detergent is a chemical that people use in washing things. Many people use washing powder, which is a type of detergent, when they need to clean their clothes. It is also used to clean glasses and other items.
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Klaus Voormann
Klaus Voormann (born April 29, 1942) is a German artist and musician. He was born and raised in Berlin. He was a friend of The Beatles. He met them when they played in Hamburg, where he was going to art school.
Voormann designed the cover of their "Revolver" album, and later did cover art for "The Beatles Anthology" and some of George Harrison's solo records. He also played bass guitar with Manfred Mann, and on records by John Lennon, George Harrison and Ringo Starr, and their friend Harry Nilsson.
He also became a record producer, and produced the band Trio, whose biggest hit was "Da Da Da", which was used later in a Volkswagen television commercial.
Alan White
Alan White has been the name of several people, including:
Alan White (Yes drummer)
Alan White (born 14 June 1949) is an English musician, best known as the drummer from the band Yes. He also played on records by former Beatles John Lennon and George Harrison.
Solo:
With White:
With Yes: "See infobox below"
With The Alan Price Set:
With John Lennon and The Plastic Ono Band:
Guest appearances/sessions:
and work with Rick Wakeman, Steve Howe, Billy Sherwood, Esquire and The Syn
Stock market
A stock market is an institution where humans and computers buy and sell shares of companies.
Shares are small pieces of a company. Shares can be bought by humans, companies, and mutual funds. When buying shares in a company, the buyer owns a small part of that company. The price of a share can be based on many different things. The main thing that affects the price is the balance between supply and demand. If many buyers want to buy a stock the price goes up. If there are more sellers than buyers, the price goes down.
Some buyers trade shares in stocks through a stockbroker. A stockbroker is a person who buys or sell stocks for their customers. A stockbroker can also help customers make choices in stocks. Their advice is based on public information about the companies.
Trading stocks online has become more popular. Stocks can be traded online. There is a fee or commission each time a position is opened.
Allen Ginsberg
Irwin Allen Ginsberg (June 3, 1926 – April 5, 1997) was an American poet and author. He was part of the Beat Generation movement of poets in the 1950s. He was a friend of writers Jack Kerouac and William S. Burroughs, and later made friends with musicians Bob Dylan, Donovan, John Lennon and Yoko Ono, and many other celebrities.
Ginsberg's most famous work was called "Howl." It was a long poem about the social conditions of the United States in the 1950s. It began with the words "I saw the best minds of my generation destroyed by madness." It went on to describe the frustration felt by many Americans, young people and minorities in particular. There were problems in the country, such as prejudice and intolerance, that needed to be spoken about. Ginsberg published the poem, and also performed it at public poetry readings.
A few people did not like "Howl", or the graphic language Ginsberg used. They tried to have "Howl" banned, and they wanted Ginsberg to be prosecuted (given a court trial, then either fined or put in jail). Ginsberg went to trial, and the judge decided "Howl" was an important work, and told the truth about America at the time. The judge rejected the ban and cleared Ginsberg, who could then continue to publish and perform the poem.
Ginsberg became involved in social causes through his work, and through the famous people he met. He grew up in the Jewish faith, but later became a Buddhist. He was a homosexual, and his longtime partner was another poet, Peter Orlovsky. He also had a long relationship with Neal Cassady, who appeared as "N.C., secret hero of these poems" in "Howl".
Ginsberg died in 1997 of liver cancer.
Northwestern University
Northwestern University is a university in Evanston, Illinois, and Chicago, Illinois. It is very prestigious and selective. It has many people who learn and also people who teach.
The university is known most for providing a strong education in economics (the study of the economy), linguistics (the study of language), political science (the study of politics), and mathematics (the study of numbers). There is also a Medical school named Feinberg School of Medicine.
There is another university in Chicago, the University of Chicago.
Door god
A door god is a painting pasted on a door. These were used by the Chinese as good luck. Door gods can be seen on temples - places of religion - and other buildings. There is a belief that door gods stop evil spirits from going into the building.
Door gods are often in pairs, one for each side of the door. The first door gods may have been made for a Chinese Emperor, more than 1300 years ago. They showed his two best soldiers.
Jack Kerouac