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Births on June 28

Carl Friedrich von Weizsäcker
1912Jun, 28

Carl Friedrich von Weizsäcker

Carl Friedrich von Weizsäcker, German physicist and philosopher (d. 2007)
Carl Friedrich Freiherr von Weizsäcker (German: [kaʁl ˈfʁiːdʁɪç fɔn ˈvaɪtsɛkɐ] (listen); 28 June 1912 – 28 April 2007) was a German physicist and philosopher. He was the longest-living member of the team which performed nuclear research in Germany during the Second World War, under Werner Heisenberg's leadership. There is ongoing debate as to whether or not he and the other members of the team actively and willingly pursued the development of a nuclear bomb for Germany during this time.

A member of the prominent Weizsäcker family, he was son of the diplomat Ernst von Weizsäcker, elder brother of the former German President Richard von Weizsäcker, father of the physicist and environmental researcher Ernst Ulrich von Weizsäcker and father-in-law of the former General Secretary of the World Council of Churches Konrad Raiser.

Weizsäcker made important theoretical discoveries regarding energy production in stars from nuclear fusion processes. He also did influential theoretical work on planetary formation in the early Solar System.

In his late career, he focused more on philosophical and ethical issues, and was awarded several international honors for his work in those areas.

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Events on 1912

  • 6Mar

    Airship

    Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
  • 15Apr

    Sinking of the RMS Titanic

    The British passenger liner RMS Titanic sinks in the North Atlantic at 2:20 a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive.
  • 14Oct

    Theodore Roosevelt

    While campaigning in Milwaukee, the former President of the United States, Theodore Roosevelt, is shot and mildly wounded by John Schrank, a mentally-disturbed saloon keeper. With the fresh wound in his chest, and the bullet still within it, Mr. Roosevelt still carries out his scheduled public speech.
  • 17Oct

    First Balkan War

    Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
  • 26Oct

    Thessaloniki

    First Balkan War: The Ottoman occupied city of Thessaloniki, is liberated and unified with Greece on the feast day of its patron saint Demetrius. On the same day, Serbian troops captured Skopje.