Template:Selected anniversaries/October 23: Difference between revisions
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File:Tullio Regge.jpg|link=Tullio Regge (nonfiction)|2014: Physicist and academic [[Tullio Regge (nonfiction)|Tullio Regge]] dies. In 1968 he and G. Ponzano developed a quantum version of Regge calculus in three space-time dimensions now known as the Ponzano-Regge model; this was the first of a whole series of state sum models for quantum gravity known as spin foam models. | File:Tullio Regge.jpg|link=Tullio Regge (nonfiction)|2014: Physicist and academic [[Tullio Regge (nonfiction)|Tullio Regge]] dies. In 1968 he and G. Ponzano developed a quantum version of Regge calculus in three space-time dimensions now known as the Ponzano-Regge model; this was the first of a whole series of state sum models for quantum gravity known as spin foam models. | ||
File:The Eel Time-Surfing.jpg|link=The Eel Time-Surfing|2016: Steganographic analysis of ''[[The Eel Time-Surfing]]'' reveals two terabytes of encrypted data. | |||
||2016 – Jack Chick, American cartoonist and publisher (b. 1924) | ||2016 – Jack Chick, American cartoonist and publisher (b. 1924) | ||
Revision as of 14:25, 21 October 2017
1873: Physicist and engineer William D. Coolidge born. He will make major contributions to X-ray machines, and develop ductile tungsten for incandescent light bulbs.
1973: Watergate scandal: President Richard M. Nixon agrees to turn over subpoenaed audio tapes of his Oval Office conversations.
2014: Physicist and academic Tullio Regge dies. In 1968 he and G. Ponzano developed a quantum version of Regge calculus in three space-time dimensions now known as the Ponzano-Regge model; this was the first of a whole series of state sum models for quantum gravity known as spin foam models.
2016: Steganographic analysis of The Eel Time-Surfing reveals two terabytes of encrypted data.