Template:Selected anniversaries/April 5: Difference between revisions

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||1900: Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
||1900: Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
||1901: Subbayya Sivasankaranarayana Pillai born ... mathematician specializing in number theory.  He contributed to the solution of Waring's problem. The Pillai sequence 1, 4, 27, 1354, ..., is a quickly-growing integer sequence in which each term is the sum of the previous term and a prime number whose following prime gap is larger than the previous term. Pic.


||1909: Siegfried Knemeyer born ... German aeronautical engineer, aviator and the Head of Technical Development at the Reich Ministry of Aviation of Nazi Germany during World War II. Pic.
||1909: Siegfried Knemeyer born ... German aeronautical engineer, aviator and the Head of Technical Development at the Reich Ministry of Aviation of Nazi Germany during World War II. Pic.

Revision as of 14:10, 5 April 2019

  • 1523: Cryptographer and diplomat Blaise de Vigenère (nonfiction) born. The Vigenère cipher will be misattributed to him; Vigenère himself will devise a different, stronger cipher.

    1523: Cryptographer and diplomat Blaise de Vigenère (nonfiction) born. The Vigenère cipher will be misattributed to him; Vigenère himself will devise a different, stronger cipher.

  • 1622: Mathematician and scientist Vincenzo Viviani born. In 1660, Viviani and Giovanni Alfonso Borelli will conduct an experiment to determine the speed of sound. Timing the difference between the seeing the flash and hearing the sound of a cannon shot at a distance, they will calculate a value of 350 meters per second (m/s), considerably better than the previous value of 478 m/s obtained by Pierre Gassendi.

    1622: Mathematician and scientist Vincenzo Viviani born. In 1660, Viviani and Giovanni Alfonso Borelli will conduct an experiment to determine the speed of sound. Timing the difference between the seeing the flash and hearing the sound of a cannon shot at a distance, they will calculate a value of 350 meters per second (m/s), considerably better than the previous value of 478 m/s obtained by Pierre Gassendi.

  • 1827: Surgeon and scientist Joseph Lister born. He will pioneer antiseptic surgery, performing the first antiseptic surgery in 1865.

    1827: Surgeon and scientist Joseph Lister born. He will pioneer antiseptic surgery, performing the first antiseptic surgery in 1865.

  • 1869: Physicist, mathematician, and engineer Sergey Chaplygin born. He will be known for mathematical formulas such as Chaplygin's equation, and for a hypothetical substance in cosmology called Chaplygin gas, named after him.

    1869: Physicist, mathematician, and engineer Sergey Chaplygin born. He will be known for mathematical formulas such as Chaplygin's equation, and for a hypothetical substance in cosmology called Chaplygin gas, named after him.

  • 1870: Adventurer Wallace War-Heels publishes autobiography.

    1870: Adventurer Wallace War-Heels publishes autobiography.

  • 1900: Mathematician, economist, and academic Joseph Louis François Bertrand dies. He worked in the fields of number theory, differential geometry, probability theory, economics and thermodynamics.

    1900: Mathematician, economist, and academic Joseph Louis François Bertrand dies. He worked in the fields of number theory, differential geometry, probability theory, economics and thermodynamics.

  • 1910: Havelock and Nikola Tesla share Nobel Prize in Physics for research into electrical field modulation and data transmission.

    1910: Havelock and Nikola Tesla share Nobel Prize in Physics for research into electrical field modulation and data transmission.

  • 1976: Businessman, investor, aviator, film director, and philanthropist Howard Hughes dies. He was known during his lifetime as one of the most financially successful individuals in the world.

    1976: Businessman, investor, aviator, film director, and philanthropist Howard Hughes dies. He was known during his lifetime as one of the most financially successful individuals in the world.

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