Antimatter
Antimatter
Antimatter (/æntɪˌmætər/) is a term used in Physics to describe a material composed of antiparticles, which have the same mass as particles of ordinary matter but opposite charge and other particle properties.
Etymology
The term "antimatter" was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he hypothesized antiatoms, and whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. The modern theory of antimatter began in 1928 with a paper by Paul Dirac.
Properties
Antimatter particles bind with each other to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton can form an antihydrogen atom.
Related Terms
See Also
External links
- Medical encyclopedia article on Antimatter
- Wikipedia's article - Antimatter
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