In: Science

Submitted By lookeedub
Words 1397
Pages 6
Kerven Louis
Physics 102

Antimatter is a material composed of antiparticles, they have the same mass as any normal particles that makes matter but have opposite charge and other particle properties such as lepton and baryon number ( Kragh 2002). When normal particles and antiparticles encounter each other it leads to the annihilation of both and gives rise to certain high-energy photons or gamma rays, neutrinos, and lower-mass particle–antiparticle pairs. Setting aside the mass of any product neutrinos, which represent released energy which generally continues to be unavailable, the end result of annihilation is a release of energy available to do work, proportional to the total matter and antimatter mass, in accord with the mass-energy equivalence equation, E=mc2. Antiparticles have been found in cosmic rays, and are also produced in particle accelerators also known as atom smashers. An antiparticle never lasts for very long, because shortly after it forms, it encounters one of its equivalent matter particles, and both are annihilated, yielding pure energy.( Thompson 1997)

Artificially produced antimatter can have some practical applications, especially in medical science, where it is involved in the operation of positron emission tomography scanning equipment. Antimatter has been suggested as a possible propellant for spacecraft, a source of energy for public consumption, and as material for a doomsday bomb that would vaporize the earth. (G. Weidenspointner et al. 2008)
The discovery of antimatter is one of the most important scientific events of the twentieth century. Big discoveries in science are a result of chance most of the time . However, the existence of antimatter was predicted before anybody had actually been able to observe it in the real world. In 1928, British physicist Paul Dirac wrote down an equation that combined quantum...