Template:Selected anniversaries/February 14: Difference between revisions

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||1989: Iranian leader Ruhollah Khomeini issues a fatwa encouraging Muslims to kill Salman Rushdie, author of The Satanic Verses.
||1989: Iranian leader Ruhollah Khomeini issues a fatwa encouraging Muslims to kill Salman Rushdie, author of The Satanic Verses.


File:Pale Blue Dot.png|link=Pale Blue Dot (nonfiction)|1990: The Voyager 1 spacecraft takes the photograph of planet Earth later become famous as ''[[Pale Blue Dot (nonfiction)|Pale Blue Dot]]''.
File:Pale Blue Dot.png|link=Pale Blue Dot (nonfiction)|1990: The Voyager 1 spacecraft takes ''[[Pale Blue Dot (nonfiction)|Pale Blue Dot]]'' photograph of planet Earth from a distance of about 6 billion kilometers (3.7 billion miles, 40.5 AU). Earth's apparent size is less than a pixel.


||1991: José Ádem dies ... mathematician who worked in algebraic topology, and proved the Ádem relations between Steenrod squares. Pic.
||1991: José Ádem dies ... mathematician who worked in algebraic topology, and proved the Ádem relations between Steenrod squares. Pic.

Revision as of 18:08, 14 February 2020

  • 1404: Polymath Leon Battista Alberti born. Alberti will epitomize the Renaissance man: humanist author, artist, architect, poet, priest, linguist, philosopher, cryptographer.

    1404: Polymath Leon Battista Alberti born. Alberti will epitomize the Renaissance man: humanist author, artist, architect, poet, priest, linguist, philosopher, cryptographer.

  • 1744: Mathematician John Hadley dies. Hadley laid claim to the invention of the octant, two years after Thomas Godfrey claimed the same. Hadley also developed ways to make precision aspheric and parabolic objective mirrors for reflecting telescopes.

    1744: Mathematician John Hadley dies. Hadley laid claim to the invention of the octant, two years after Thomas Godfrey claimed the same. Hadley also developed ways to make precision aspheric and parabolic objective mirrors for reflecting telescopes.

  • 1855: Texas is linked by telegraph to the rest of the United States, with the completion of a connection between New Orleans and Marshall, Texas.

    1855: Texas is linked by telegraph to the rest of the United States, with the completion of a connection between New Orleans and Marshall, Texas.

  • 1876: Alexander Graham Bell applies for a patent for the telephone, as does Elisha Gray.

    1876: Alexander Graham Bell applies for a patent for the telephone, as does Elisha Gray.

  • 1904: Engineer and inventor Charles William Oatley born. He will develop of one of the first commercial scanning electron microscopes.

    1904: Engineer and inventor Charles William Oatley born. He will develop of one of the first commercial scanning electron microscopes.

  • 1943: Mathematician David Hilbert dies. He discovered and developed a broad range of fundamental ideas in many areas, including invariant theory and the axiomatization of geometry.

    1943: Mathematician David Hilbert dies. He discovered and developed a broad range of fundamental ideas in many areas, including invariant theory and the axiomatization of geometry.

  • 1944: Physicist and academic Owen Willans Richardson uses thermionic theory to compute optimal Valentine's Day card.

    1944: Physicist and academic Owen Willans Richardson uses thermionic theory to compute optimal Valentine's Day card.

  • 1950: Physicist and engineer Karl Guthe Jansky dies. Jansky discovered radio waves emanating from the Milky Way while investigating sources of static that might interfere with radio voice transmissions, and is considered one of the founding figures of radio astronomy.

    1950: Physicist and engineer Karl Guthe Jansky dies. Jansky discovered radio waves emanating from the Milky Way while investigating sources of static that might interfere with radio voice transmissions, and is considered one of the founding figures of radio astronomy.

  • 1951: Theoretical physicist and crime-fighter Richard Feynman uses principles of quantum electrodynamics to compose state-of-the-art Valentine's Day cards.

    1951: Theoretical physicist and crime-fighter Richard Feynman uses principles of quantum electrodynamics to compose state-of-the-art Valentine's Day cards.

  • 1990: The Voyager 1 spacecraft takes Pale Blue Dot photograph of planet Earth from a distance of about 6 billion kilometers (3.7 billion miles, 40.5 AU). Earth's apparent size is less than a pixel.

    1990: The Voyager 1 spacecraft takes Pale Blue Dot photograph of planet Earth from a distance of about 6 billion kilometers (3.7 billion miles, 40.5 AU). Earth's apparent size is less than a pixel.

  • 2017: Steganographic analysis of famed illustration Alice and Niles Dancing reveals three terabytes of love letters between mathematicians Alice Beta and Niles Cartouchian.

    2017: Steganographic analysis of famed illustration Alice and Niles Dancing reveals three terabytes of love letters between mathematicians Alice Beta and Niles Cartouchian.

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