Changes

'''Antimatter''' is composed of fundamental particles that have the opposite electric charge and quantum spin as those of matter.

'''Antimatter''' is composed of fundamental particles that have the opposite [[electric charge]] and quantum spin as those of [[matter]].

[[Matter]], and therefore everything seen, is made out of fundamental particles of nature.  These fundamental particles are hadrons and leptons, the hadrons being further subdivided into baryons and mesons.  Hadrons include the proton and neutron and leptons include the electron, [[muon]] and tau as well as the corresponding neutrinos.  For simplicity, the overwhelming majority of matter in the universe is comprised of protons, neutrons and electrons. Antimatter is matter formed from antiparticles, which have the same mass but opposite [[charge]] and quantum spin to their corresponding particles. When antimatter is brought into contact with normal matter, both particles are destroyed, resulting in an explosion that is, in terms of mass to explosive power, the most powerful known to mankind.  

[[Matter]], and therefore everything seen, is made out of fundamental particles of nature.  These fundamental particles are hadrons and leptons, the hadrons being further subdivided into baryons and mesons.  Hadrons include the proton and neutron and leptons include the electron, [[muon]] and tau as well as the corresponding neutrinos.  For simplicity, the overwhelming majority of matter in the universe is comprised of protons, neutrons and electrons. Antimatter is matter formed from antiparticles, which have the same mass but opposite [[charge]] and quantum spin to their corresponding particles. When antimatter is brought into contact with normal matter, both particles are destroyed, resulting in an explosion that is, in terms of mass to explosive power, the most powerful known to mankind.  

== Natural Antimatter ==

== Natural Antimatter ==

Antimatter is naturally produced  by both (β⁺) decay and by high energy collisions between particles. Antimatter makes up a very small percentage of cosmic rays, and is occasionally produced when those rays collide with the earth's atmosphere. Antimatter has also been spotted in the Van Allen belts and forming above thunderstorms.

Antimatter is naturally produced  by both (β⁺) decay and by high energy collisions between particles. Antimatter makes up a very small percentage of [[cosmic ray]]s, and is occasionally produced when those rays collide with the earth's atmosphere. Antimatter has also been spotted in the [[Van Allen belt]]s and forming above thunderstorms.

Potassium 40 will (very) occasionally undergo beta decay, producing an antielectron. As such, the average banana (rich in potassium) will produce a small particle of antimatter every 75 minutes.<ref>http://tertiarysource.net/ts.cgi/anti-banana</ref>

[[Potassium]] 40 will (very) occasionally undergo beta decay, producing an antielectron. As such, the average banana (rich in potassium) will produce a small particle of antimatter every 75 minutes.<ref>http://tertiarysource.net/ts.cgi/anti-banana</ref>

== References ==

== References ==