Difference between revisions of "Cockcroft and Walton Experiment"

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(Cavendish Laboratory)
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This '''experiment''' by [[John Cockcroft]] and [[Ernest Walton]] is heralded by most physicists as demonstrating that ''[[E=mc2|E=mc<sup>2</sup>]]''.<ref>[http://cerncourier.com/cws/article/cern/31864 Mike Poole ''Cockcroft's subatomic legacy: splitting the atom''], Cern Courier, Nov 20, 2007</ref>
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This '''experiment''' by [[John Cockcroft]] and [[Ernest Walton]] is claimed by some physicists as demonstrating that ''[[E=mc2|E=mc<sup>2</sup>]]''.<ref>[http://cerncourier.com/cws/article/cern/31864 Mike Poole ''Cockcroft's subatomic legacy: splitting the atom''], Cern Courier, Nov 20, 2007</ref>
  
 
Conducted in April 1932 at the [[University of Cambridge]]'s [[Cavendish Laboratory]] in England,  the physicists Cockroft and Walton successfully split [[lithium]] atom [[nucleus|nuclei]] by colliding them with artificially accelerated protons. This experiment is general hailed as being the first [[transmutation]] of an element using artificially accelerated particles, for which they were honored with the [[Nobel Prize]] in 1951<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/  ''The Nobel Prize in Physics 1951''], Nobelprize.org, 23 Jan 2013</ref>.  
 
Conducted in April 1932 at the [[University of Cambridge]]'s [[Cavendish Laboratory]] in England,  the physicists Cockroft and Walton successfully split [[lithium]] atom [[nucleus|nuclei]] by colliding them with artificially accelerated protons. This experiment is general hailed as being the first [[transmutation]] of an element using artificially accelerated particles, for which they were honored with the [[Nobel Prize]] in 1951<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/  ''The Nobel Prize in Physics 1951''], Nobelprize.org, 23 Jan 2013</ref>.  

Revision as of 20:02, 23 January 2013

This experiment by John Cockcroft and Ernest Walton is claimed by some physicists as demonstrating that E=mc2.[1]

Conducted in April 1932 at the University of Cambridge's Cavendish Laboratory in England, the physicists Cockroft and Walton successfully split lithium atom nuclei by colliding them with artificially accelerated protons. This experiment is general hailed as being the first transmutation of an element using artificially accelerated particles, for which they were honored with the Nobel Prize in 1951[2].

Critics maintain that such verification is impossible due to the utter lack of any logical justification for that science fiction formula.

Since the experiment showed that mass could be converted directly into energy through nuclear transmutation it is generally seen as being an impressive verification of Albert Einstein's famous E=mc2 formula[3][4].


(explain experiment)

References

  1. Mike Poole Cockcroft's subatomic legacy: splitting the atom, Cern Courier, Nov 20, 2007
  2. The Nobel Prize in Physics 1951, Nobelprize.org, 23 Jan 2013
  3. The Center for History of Physics: Einstein: Image and Impact, © 1996-2004 - American Institute of Physics
  4. Louise Boylan: Cockroft and Walton Experiment: Converting Mass into Energy