Template:Selected anniversaries/March 18

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  • 1640: Painter, mathematician, astronomer, and architect Philippe de La Hire born. La Hire will be the favorite pupil of Desargues, and develop conic sections and epicycloids based on the teaching of Desargues.

    1640: Painter, mathematician, astronomer, and architect Philippe de La Hire born. La Hire will be the favorite pupil of Desargues, and develop conic sections and epicycloids based on the teaching of Desargues.

  • 1727: Scientist and watchmaker Ferdinand Berthoud born. Berthoud will serve as Horologist-Mechanic by appointment to the King and the Navy, leaving an exceptionally broad body of work, notable for excellent sea chronometers.

    1727: Scientist and watchmaker Ferdinand Berthoud born. Berthoud will serve as Horologist-Mechanic by appointment to the King and the Navy, leaving an exceptionally broad body of work, notable for excellent sea chronometers.

  • 1899: Marie and Pierre Curie use radium compounds to detect and counteract crimes against both physical constants and chemical constants.

    1899: Marie and Pierre Curie use radium compounds to detect and counteract crimes against both physical constants and chemical constants.

  • 1927: Physicist, mathematician, and activist William C. Davidon born. Davidon will develop the first quasi-Newton algorithm, now known as the Davidon–Fletcher–Powell formula.

    1927: Physicist, mathematician, and activist William C. Davidon born. Davidon will develop the first quasi-Newton algorithm, now known as the Davidon–Fletcher–Powell formula.

  • 1927: Journalist, writer, literary editor, and actor George Plimpton born. Plimpton will be famous for "participatory journalism": competing in professional sporting events, playing with the New York Philharmonic Orchestra, performing a circus trapeze act, and then recording the experience from the point of view of an amateur.

    1927: Journalist, writer, literary editor, and actor George Plimpton born. Plimpton will be famous for "participatory journalism": competing in professional sporting events, playing with the New York Philharmonic Orchestra, performing a circus trapeze act, and then recording the experience from the point of view of an amateur.

  • 1963: Mathematician Tan Lei born. Tan Lei will specialize in complex dynamics and functions of complex numbers, making contributions to the study of the Mandelbrot set and Julia set.

    1963: Mathematician Tan Lei born. Tan Lei will specialize in complex dynamics and functions of complex numbers, making contributions to the study of the Mandelbrot set and Julia set.

  • 1964: Mathematician and crime-fighter Gaston Maurice Julia discovers new class of Gnomon algorithm functions which anticipate the later work of Tan Lei in using the Julia set to detect and prevent crimes against mathematical constants.

    1964: Mathematician and crime-fighter Gaston Maurice Julia discovers new class of Gnomon algorithm functions which anticipate the later work of Tan Lei in using the Julia set to detect and prevent crimes against mathematical constants.

  • 2016: Green Spiral 9 declared Picture of the Day by the citizens of New Minneapolis, Canada.

    2016: Green Spiral 9 declared Picture of the Day by the citizens of New Minneapolis, Canada.

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