Template:Selected anniversaries/February 14: Difference between revisions
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||1819: Christopher Latham Sholes born ... journalist and politician, invented the typewriter ... inventor who invented the QWERTY keyboard, and along with Frank Haven Hall, Samuel W. Soule, Carlos Glidden and John Pratt, has been contended as one of the inventors of the first typewriter in the United States. | ||1819: Christopher Latham Sholes born ... journalist and politician, invented the typewriter ... inventor who invented the QWERTY keyboard, and along with Frank Haven Hall, Samuel W. Soule, Carlos Glidden and John Pratt, has been contended as one of the inventors of the first typewriter in the United States. | ||
||1831: Henry Maudslay dies ... engineer ... Machine tools. | ||1831: Henry Maudslay dies ... engineer ... Machine tools. Pic. | ||
||1838: Margaret E. Knight born ... inventor. | ||1838: Margaret E. Knight born ... inventor, flat-bottomed paper bag. Pic search yes: https://www.google.com/search?q=margaret+e.+knight | ||
||1839: Hermann Hankel born ... mathematician. His 1867 exposition on complex numbers and quaternions is particularly memorable. Pic. | ||1839: Hermann Hankel born ... mathematician. His 1867 exposition on complex numbers and quaternions is particularly memorable. Pic. | ||
||1847: Anna Howard Shaw born ... physician, minister, and activist. | ||1847: Anna Howard Shaw born ... physician, minister, and suffrage activist. Pic. | ||
||1848: Benjamin Baillaud born ... astronomer and academic. | ||1848: Benjamin Baillaud born ... astronomer and academic. Baillaud was active in time standardisation, becoming the founding president of the International Time Bureau and initiating the transmission of a time signal from the Eiffel Tower. Baillaud maintained the observatory and the time signal throughout World War I. Pic. | ||
||1850: John Perry born ... engineer and mathematician. Pic search yes: https://www.google.com/search?q=John+Perry+engineer | ||1850: John Perry born ... engineer and mathematician. Pic search yes: https://www.google.com/search?q=John+Perry+engineer | ||
Revision as of 20:38, 23 May 2019
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.
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.
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. He was 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.
1990: The Voyager 1 spacecraft takes the photograph of planet Earth later become famous as Pale Blue Dot.
2017: Steganographic analysis of famed illustration Alice and Niles Dancing reveals three terabytes of love letters between mathematicians Alice Beta and Niles Cartouchian.