Template:Selected anniversaries/September 25: Difference between revisions

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||1915: Ethel Rosenberg born ... American spy.
||1915: Ethel Rosenberg born ... American spy.
||1916: Kurt Wintgens dies ... German World War I fighter ace. He was the first military fighter pilot to score a victory over an opposing aircraft, while piloting an aircraft armed with a synchronized machine gun. Pic.


||1922: Johannes Petrus Kuenen dies ... physicist. He discovered retrograde condensation and published his findings in 1892 in the Ph.D. thesis with the title "Metingen betreffende het oppervlak van Van der Waals voor mengsels van koolzuur en chloormethyl". (Measurements on the Van der Waals surface for mixtures of carbonic acid and methyl chloride).  He performed early experiments with x-rays with the physiologist Edward Waymouth Reid. Pic.
||1922: Johannes Petrus Kuenen dies ... physicist. He discovered retrograde condensation and published his findings in 1892 in the Ph.D. thesis with the title "Metingen betreffende het oppervlak van Van der Waals voor mengsels van koolzuur en chloormethyl". (Measurements on the Van der Waals surface for mixtures of carbonic acid and methyl chloride).  He performed early experiments with x-rays with the physiologist Edward Waymouth Reid. Pic.

Revision as of 11:19, 18 April 2019

  • 1644: Astronomer and instrument maker Ole Rømer born. He will make the first quantitative measurements of the speed of light.

    1644: Astronomer and instrument maker Ole Rømer born. He will make the first quantitative measurements of the speed of light.

  • 1777: Polymath Johann Heinrich Lambert dies. He made important contributions to mathematics, physics (particularly optics), philosophy, astronomy, and map projections.

    1777: Polymath Johann Heinrich Lambert dies. He made important contributions to mathematics, physics (particularly optics), philosophy, astronomy, and map projections.

  • 1789: The United States Congress passes twelve amendments to the United States Constitution: The Congressional Apportionment Amendment (which was never ratified), the Congressional Compensation Amendment, and the ten that are known as the Bill of Rights.

    1789: The United States Congress passes twelve amendments to the United States Constitution: The Congressional Apportionment Amendment (which was never ratified), the Congressional Compensation Amendment, and the ten that are known as the Bill of Rights.

  • 1819: Mathematician and Anglican theologian George Salmon born. He will work in algebraic geometry for two decades, then devote the last forty years of his life to theology.

    1819: Mathematician and Anglican theologian George Salmon born. He will work in algebraic geometry for two decades, then devote the last forty years of his life to theology.

  • 1845: Judge Havelock With Glass is "a reasonably accurate depiction of events as I experienced them," according to the Judge.

    1845: Judge Havelock With Glass is "a reasonably accurate depiction of events as I experienced them," according to the Judge.

  • 1893: Mathematician and statistician Harald Cramér born. He will help found probability theory as a branch of mathematics, writing in 1926: "The probability concept should be introduced by a purely mathematical definition, from which its fundamental properties and the classical theorems are deduced by purely mathematical operations."

    1893: Mathematician and statistician Harald Cramér born. He will help found probability theory as a branch of mathematics, writing in 1926: "The probability concept should be introduced by a purely mathematical definition, from which its fundamental properties and the classical theorems are deduced by purely mathematical operations."

  • 1992: NASA launches the Mars Observer, a $511 million probe to Mars, in the first U.S. mission to the planet in 17 years. The probe will fail eleven months later.

    1992: NASA launches the Mars Observer, a $511 million probe to Mars, in the first U.S. mission to the planet in 17 years. The probe will fail eleven months later.

  • 2002: Steganographic analysis of Humpty Dumpty At Bat reveals previously unknown biography of Babe Ruth by Lewis Carroll.

    2002: Steganographic analysis of Humpty Dumpty At Bat reveals previously unknown biography of Babe Ruth by Lewis Carroll.

  • 2003: Journalist, writer, literary editor, and actor George Plimpton dies.

    2003: Journalist, writer, literary editor, and actor George Plimpton dies.

  • 2018: Chromatographic analysis of Yellow Spiral unexpectedly reveals "at least five new shades of the color yellow, perhaps as many as nine."

    2018: Chromatographic analysis of Yellow Spiral unexpectedly reveals "at least five new shades of the color yellow, perhaps as many as nine."

  • 2017: Dennis Paulson of Mars says that the twenty-fifth anniversary of the launch of the Mars Observer is a bittersweet event, because the spacecraft will be lost eleven months later.

    2017: Dennis Paulson of Mars says that the twenty-fifth anniversary of the launch of the Mars Observer is a bittersweet event, because the spacecraft will be lost eleven months later.

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