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==Core Topics Collaboration==

The Core Topics Collaboration of the Fortnight works to polish essential Wikipedia topics. The current collaboration is Sex.

Scheme of human sex chromosomes and resulting germ cells.
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Scheme of human sex chromosomes and resulting germ cells.
Sex refers to the male and female duality of biology and reproduction, a process in biological DNA that dates back 4.6 - 3.5 billion years. DNA links back in an unbroken series of sexual reproduction taking forward information to present day. The somewhat similar term gender has more to do with identity than biology. The concept is confined to organisms that reproduce sexually.

You can help pick the next Core Topic collaboration article.

The current Article Creation and Improvement Drive article is Death.
Last week's collaboration was: Cactus.
CAST YOUR VOTE for next week's article
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Chicago Collaboration of the Week
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Intelligentsia Coffee & Tea is the current Chicago Collaboration of the Week
Every week, a Chicago-related article that is in need of substantial improvement is Selected to be the Chicago Collaboration of the Week. Please help improve it to a higher standard of quality.
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Wikipedia:WikiProject Chicago
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This week's computer and video games improvement drive article is SunDog: Frozen Legacy

Today's featured article

1902 poster advertising Gaumont's sound films

A sound film is a motion picture with synchronized sound, as opposed to a silent film. The first known public exhibition of projected sound films took place in Paris in 1900, but it would be decades before reliable synchronization was achieved in a commercially practical way. The first commercial screening of movies with fully synchronized sound took place in the United States in April 1923. In the early years after the introduction of sound, films incorporating synchronized dialogue were known as "talkies." The first feature-length movie originally presented as a talkie was The Jazz Singer, released in October 1927. By the early 1930s, the talkies were a global phenomenon. In the United States, they helped secure Hollywood's position as one of the world's most powerful cultural/commercial systems. (more...)

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