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ライフゲーム
#3
258,024 ビュー

ライフゲーム は1970年にイギリスの数学者ジョン・ホートン・コンウェイ が考案した数理モデルである。単純なルールから複雑な結果が生成され、パズルやミニスケープの要素を持っている。生命の誕生、進化、淘汰などのプロセスを連想させるパターンも存…

#5
124,191 ビュー

マイナス金利 とは、経済学用語の一つであり、金利が0%未満のマイナスであるということ。

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今日の出来事

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2017
A lone gunman carried out a mass shooting at a mosque in Quebec City, Canada, killing six people and injuring up to nineteen others.
2013
Twenty-one people died when SCAT Airlines Flight 760 crashed near Almaty, Kazakhstan.
2009
The Supreme Constitutional Court of Egypt ruled that people who did not adhere to one of the three government-recognised religions were also eligible to receive government identity documents.
2006
India's Irfan Pathan became the first bowler to take a Test cricket hat-trick in the opening over of a match.
1991
The first major ground engagement of the Gulf War began with the Iraqi invasion of Khafji, Saudi Arabia, recaptured three days later by Coalition forces.
1967
The Mantra-Rock Dance (poster pictured), called the "ultimate high" of the hippie era, took place in San Francisco, featuring Swami Bhaktivedanta, Janis Joplin, the Grateful Dead, and Allen Ginsberg.
1944
World War II: At least 38 civilians were killed and about a dozen others injured when the Polish village of Koniuchy was attacked by a Soviet partisan unit with a contingent of Jewish partisans.
1943
World War II: The Battle of Rennell Island, the last major naval engagement between the United States Navy and the Imperial Japanese Navy during the Guadalcanal campaign, began.
1911
Mexican Revolution: The Magonista rebellion began when Mexican Liberal Party troops captured the town of Mexicali.
1907
Charles Curtis (pictured) of Kansas, a citizen of the Kaw Nation, became the first Native American U.S. Senator.

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