Introduction: AntiMatter

Every particle has an antiparticle with the same mass but the opposite electric charge. The proton has the negatively charged antiproton; the electron has the positively charged anti-electron, or positron.



Neutral particles can have antiparticles, too. The neutron might have no charge, but quarks - the smaller particles that make it up - do. Turn these quarks into antiquarks by flipping their charges, and you've made an antineutron.



See a diagram of the types of antimatter humanity can make


The possibility of antimatter first surfaced in equations formulated by British theoretical physicist Paul Dirac in 1928 - four years before American experimenter Carl Anderson found positrons in cosmic rays.



Notoriously, matter and antimatter destroy each other, or annihilate, whenever they come into contact. An electron and a positron mutually destruct in a puff of light consisting of two photons sent out in precisely opposite directions, each with an energy corresponding exactly to the mass of the electron (and positron).





add by : http://sharemyeyes.blogspot.com/ 

0 comments :

:)) ;)) ;;) :D ;) :p :(( :) :( :X =(( :-o :-/ :-* :| 8-} :)] ~x( :-t b-( :-L x( =))

Post a Comment