The New Kansas Appointments--Central American Treaty with Great Britain--Senator Wilson's Kansas Bill, &c.
Date: 18 December 1856
J. J. Thomson Aniversari, data de naixement
Sir Joseph John Thomson (18 December 1856 – 30 August 1940) was a British physicist. He received the 1906 Nobel Prize in Physics "in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases." In 1897, he showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he calculated must have bodies much smaller than atoms and a very large charge-to-mass ratio. The electron was the first subatomic particle to be discovered.
Thomson is credited with finding the first evidence for isotopes of a stable (non-radioactive) element in 1912, as part of his exploration into the composition of canal rays (positive ions). His experiments to determine the nature of positively charged particles, with Francis William Aston, were the first use of mass spectrometry and led to the development of the mass spectrograph.
Thomson was an influential teacher, and seven of his students went on to win Nobel Prizes: Ernest Rutherford (Chemistry 1908), Lawrence Bragg (Physics 1915), Charles Barkla (Physics 1917), Francis Aston (Chemistry 1922), Charles Thomson Rees Wilson (Physics 1927), Owen Richardson (Physics 1928) and Edward Appleton (Physics 1947). His son, George Paget Thomson, shared the 1937 Nobel Prize in Physics with Clinton Davisson "for their experimental discovery of the diffraction of electrons by crystals".
llegir més...- Aniversari, data de naixement
- dijous, 18 de desembre de 1856
- Lloc de naixement
- Edat
- 169
- Horòscop
- ♐
El 18 de desembre de 1856 era un dijous sota el signe estrella de ♐. Era el 352 dia de l'any. El president dels Estats Units era Franklin Pierce.
Si vas néixer aquest dia, tens 169 anys. El teu darrer aniversari va ser el dijous, 18 de desembre de 2025, fa 166 dies. El teu proper aniversari és el divendres, 18 de desembre de 2026, d'aquí a 198 dies. Heu viscut durant 61.892 dies, o unes 1.485.408 hores, o uns 89.124.518 minuts, o uns 5.347.471.080 segons.
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18th of December 1856 News
Notícies tal com van aparèixer a la portada del New York Times el 18 de desembre de 1856
NEW-YORK CITY.; American Tract Society. Commissioners of Emigration. Official Corruption. Board of Councilmen. Councilmen's Committee on Streets. The Proposed Parade of Target Companies. Fires.
Date: 18 December 1856
LAW INTELLIGENCE.; Important and Interesting Trial--Can Colored People Ride in the City Cars? SUPREME COURT-- SPECIAL TERM--Dec. 17. UNITED STATES CIRCUIT COURT--DEC. 17. COURT CALENDAR. Opening Statement of the Prosecution. SUPERIOR COURT- TRIAL OF CHARLES B. HUNTINGDON FOR FORGERY. COURT OF COMMON PLEAS
Date: 18 December 1856
Case of Pennington vs. 6th Avenue RRoad
LATEST INTELLIGENCE; The Collins Steamers--Squatter Sovereignty in the House. Political Rumors-Mr. Buchanan Turned Letter-Writer. Gov. GFARY'S CORRESPONDENOE WITH THE STATE DEPARTMENT. Mr. Dallas Central American Treaty Sent to the Senate-The New Territorial Nomination. By Telegraph to the New-York Daily Times. Magnetic Telegraph Co.'s Offices--4 Hanover-st., and 1st Broadway. House Printing Telegraph Office--No. 21 Wall street. INTERESTING FROM WASHINGTON.
Date: 18 December 1856