Dirac

Only available on StudyMode
  • Download(s) : 101
  • Published : May 17, 2013
Open Document
Text Preview
TIME LINE
TIME LINE
1803| John Dalton| Proposed an "atomic theory" with spherical solid atoms based upon measurable properties of mass.| 1911 | Ernest Rutherford| Using alpha particles as atomic bullets, probed the atoms in a piece of thin (0.00006 cm) gold foil. He established that the nucleus was: very dense, very small and positively charged. He also assumed that the electrons were located outside the nucleus.| 1930| Paul Dirac| Proposed anti-particles. Anderson discovered the anti-electron (positron) in 1932 and Segre/Chamberlain detected the anti-proton in 1955| 1932 | James Chadwick | Using alpha particles discovered a neutral atomic particle with a mass close to a proton. Thus was discovered the neutron.| 1942| Enrico Fermi| Conducted the first controlled chain reaction releasing energy from the atoms nucleus|

1803| John Dalton| Proposed an "atomic theory" with spherical solid atoms based upon measurable properties of mass.| 1911 | Ernest Rutherford| Using alpha particles as atomic bullets, probed the atoms in a piece of thin (0.00006 cm) gold foil. He established that the nucleus was: very dense, very small and positively charged. He also assumed that the electrons were located outside the nucleus.| 1930| Paul Dirac| Proposed anti-particles. Anderson discovered the anti-electron (positron) in 1932 and Segre/Chamberlain detected the anti-proton in 1955| 1932 | James Chadwick | Using alpha particles discovered a neutral atomic particle with a mass close to a proton. Thus was discovered the neutron.| 1942| Enrico Fermi| Conducted the first controlled chain reaction releasing energy from the atoms nucleus|

BIOGRAPHY

Paul Adrien Maurice Dirac, OM, FRS was an English theoretical physicist who made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics. Dirac was born on the 8th of August 1902 in Bristol. Paul Dirac's father was Charles Adrien Ladislas Dirac...
tracking img