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Niels Bohr (1885–1962) was a Danish physicist who created the first widely accepted model of atomic structure. In three articles published in 1913, he proposed the Bohr model of the atom. Faced with the opposing particle and wave interpretations of atomic phenomena in the new quantum mechanics, he proposed the complementarity principle of using both interpretations to fully explain the results. Bohr received the Nobel Prize in Physics in 1922. He founded the Institute of Theoretical Physics in Copenhagen, now known as the Niels Bohr Institute. He correctly predicted the properties of an undiscovered element, hafnium. Later, the element bohrium was named after him. During the 1930s, Bohr helped refugees from Nazism and in September 1943 fled to Britain to avoid arrest by the Germans. There he joined the Tube Alloys nuclear weapons project, and later the Manhattan Project. After the war, he was involved with the establishment of CERN. (Full article...)

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... that the Springfield Science Museum is home to the oldest operating projection planetarium in the United States?
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... that the Latin princess Ioveta was about four years old when her mother, Queen Morphia, surrendered her to the Turks as debt payment security?

In the news

Pope Francis

A mass shooting in Prague, Czech Republic, leaves 15 people dead.
Pope Francis (pictured) approves a declaration that allows Catholic clergy to bless same-sex couples.
After weeks of earthquakes, a volcanic eruption occurs near Grindavík, Iceland.
An earthquake in Jishishan County, China, leaves more than 140 people dead.
In the parliamentary election, the Serbian Progressive Party regains its parliamentary majority in the National Assembly.

On this day

December 27

Japanese aircraft carrier Hōshō

1521 – A period of unrest in Wittenberg following the arrival of three men of the Radical Reformation, known as the Zwickau prophets, was quelled after Martin Luther's release from custody.
1657 – Citizens of New Netherland presented the Flushing Remonstrance to Peter Stuyvesant, the director general of the colonial province, requesting an exemption to his ban on Quaker worship.
1922 – The Imperial Japanese Navy commissioned Hōshō (pictured), the world's first purpose-built aircraft carrier.
2002 – The human-cloning company Clonaid claimed to have performed the first reproductive cloning of a human, but provided no evidence for the claim.

Bertha of Savoy (d. 1087)
Anne de Mortimer (b. 1388)
Shahid Khaqan Abbasi (b. 1958)
Hayley Williams (b. 1988)

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The Dover Boys at Pimento University is a 1942 Merrie Melodies cartoon directed by Chuck Jones and distributed by Warner Bros. Pictures. A parody of the Rover Boys, a popular juvenile fiction book series of the early 20th century, it was one of the first cartoons to make extensive use of limited animation, as well as other techniques that would only be more broadly popularized in the 1950s. Michael Barrier, an animation historian, wrote: "Is The Dover Boys the first 'modern' cartoon? ... Chuck Jones stylized the animation in this cartoon in a way that anticipated what several consciously modern studios like UPA would be doing a decade later." The Dover Boys was voted by animation professionals as number 49 in The 50 Greatest Cartoons, published in 1994. It was released on September 19, 1942, and has a running time of 8 minutes, 56 seconds.

Film credit: Chuck Jones

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