In later life, Urey helped develop the field of 'cosmochemistry' and is credited with coining the term. His work on oxygen-18 led him to develop theories about the abundance of the chemical elements on Earth and of their abundance and evolution in the stars. This work was among the pioneering paleoclimatic research. Urey summarised his work in the book "The planets: their origin and development" (1952). Urey speculated that the early terrestrial atmosphere was probably composed of ammonia, methane and hydrogen; it was one of his Chicago graduate students, Stanley L. Miller, who showed that, if such a mixture be exposed to electric sparks and to water, it can interact to produce amino acids, commonly called the "building blocks of life" ("see Miller-Urey experiment").
Urey died at La Jolla, California, and is buried in the Fairfield Cemetery in DeKalb County, Indiana. While working at Columbia University, Urey was a resident of Leonia, New Jersey.
German Reich
German Reich () was the official name for Germany from 1871 to 1945.
The history of Germany during the time of the German Reich is usually broken into three parts:
Adolf Hitler called as NCR Hitler.
Trịnh Công Sơn
Trịnh Công Sơn (February 28, 1939 – April 1, 2001) was a Vietnamese composer, musician, painter and songwriter.
He, along with Pham Duy and Van Cao, is widely considered one of the three salient figures of modern (non-classical) Vietnamese music.
Constituent Assembly of Pakistan
The Constituent Assembly of Pakistan was Pakistan's first parliament and first met on 10 August, 1947. The next day Quaid-i-Azam Muhammad Ali Jinnah (1876-1948), was elected as the President of the assembly and the new national flag was approved. On 14 August, 1947, Jinnah gave a speech which outlined the important principles of the future government of an independent Pakistan. Jinnah was chosen as the first Governor-General of Pakistan. The assembly's main task was to write a new constitution for Pakistan.
This was a difficult task, however the assembly did agree on the "Objective Resolution" on 12 March, 1949. A special committee of 24 members of the Constituent Assembly worked on a constitution based on the ideas in the Objective Resolution. The Governor-General, Ghulam Muhammad, shut down the assembly on 24 October 1954, before the draft constitution could be presented. The President of the Assembly, took legal action as he believed that shutting down the assembly was illegal. He lost the case in the Federal Court.
A second Constituent Assembly of Pakistan was formed on 28 May 1955. They wrote the new constitution which came into force on 23 March 1956.
Piranha 3D
Piranha 3D is a 3-D movie directed by Alexandre Aja. It stars Elisabeth Shue, Steven R. McQueen, Jessica Szohr, Jerry O'Connell, Kelly Brook, Riley Steele, Gianna Michaels, Christopher Lloyd, Ving Rhames, Roberto Chavira, Dina Meyer, Sage Ryan, Brooklynn Proulx and special starring Richard Dreyfuss.
In Lake Victoria, an earthquake forms a underwater fault line. Hungry piranhas come out. In the city of Lake Victoria (named for the lake), spring break has just started and some guys go into the lake celebrate and swim.
Dimension Films has announced that a sequel will be released in November 2011 due to the success of this and the sequel will be called "Piranha 3DD".
Richard Dreyfuss makes a cameo in the movie when he sings the song "Show Me The Way To Go Home".
Dreyfuss sang the same song in Steven Spielberg's "Jaws".
You Lost Me
"You Lost Me" is a song by American singer Christina Aguilera, from her 2010 album "Bionic". The song was written by Aguilera, Samuel Dixon and Sia Furler. It's a slow melody pop-ballad song that talks about a cheating boyfriend, who has left the world in Aguilera's view as "infected". It was released on July 6, 2010 as the third single from Aguilera's "Bionic" album.
Metric system
The metric system is a number of different systems of measurement with length based on the metre, mass on the gram, and volume on the litre. This system is used around the world. It was developed in France and first introduced there in 1795, 2 years after the execution of Louis XVI. The metric units are based on decimal groups (multiples of ten). At first the metric system was based on two quantities: length and weight. The basic units were called the "metre" and the "gramme".
In 1866, the United States started to use the metric system, and is widely used except by the public. By 1875, many countries in Europe and in Latin America had changed to using the metric system. In 1875, seventeen countries signed the Metre Convention agreeing to share responsibility for defining and managing the metre and kilogram standards. The prototype copies of the metre and of the kilogram were called the "international prototype metre" and "international prototype kilogram". A new organization called the International Bureau of Weights and Measures (BIPM) was set up. The international prototype metre and kilogram were kept at the BIPM headquarters. In 1960, the rules for the metric system were revised. The revised system was called the "International System of Units" (which is often called for short). The definition of SI also included rules for writing SI quantities. These rules are the same for all countries. In the 1970s, many people in the United Kingdom and the rest of the Commonwealth started using the metric system in their places of work.
The metric system is a decimal-based system of measurement. The system has units of measure for each quantity. The names of most units of measure in the metric system have two parts. One part is the unit name and the other part is the prefix. For example, in the name "centimetre", the word "centi" is the prefix and the word "metre" is the unit name. Sometimes, as with metre, litre and gram, there is no prefix.
In the metric system, all units have a "symbol". Symbols are a shorthand way of writing the names of units. All the countries in the world use the same symbol for a unit, even though they might have different ways of writing out the unit name in full. For example
The metric system was first developed in France during the French Revolution. A French law passed in 1795 defined five units of measure. Three of these names are still in use today. They are the metre which is the unit of length, the gram which is the unit of mass and the litre which is the unit of volume. Since then many other units of measure have been developed and many definitions changed. The metric system now has units of measurement for energy, power, force, electric current, radioactivity and many others. The most commonly used units of measure in the metric system are listed below.
The definitions of the units are often being changed. In 1960 the definition of the metre was changed. Since then it has been defined in terms of the speed of light. In 2019, the kilogram is redefined in terms of the Planck constant.
If the numbers are too big or too small, the metric system uses prefixes to make it easier to understand the numbers.
milli
centi
kilo
There are a lot of other prefixes. Some of them are:
These tables will help one to estimate the size of different lengths or masses in the metric system. In these tables:
Some names in the metric system are spelt differently in British English and in American English.
In 1875 representatives from the governments of twenty different countries met in Paris to discuss weights and measures. Seventeen of the countries signed a treaty about weights and measures. The treaty was called ""The Convention of the Metre"". The countries that signed were: Argentine Confederation, Austria-Hungary, Belgium, Brazil, Denmark, France, Germany, Italy, Peru, Portugal, Russia, Spain, Sweden and Norway, Switzerland, Turkey, United States and Venezuela. They agreed: