| Antimatter also exists and so there is an antiproton, an antineutron and an antielectron often called the positron. |
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| By the end of 1932, however, Carl Anderson in the United States had discovered the first antiparticle the positron, or antielectron. |
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| One year later, to the astonishment of physicists, this particle the antielectron, or positron was accidentally discovered in cosmic rays by Carl Anderson of the United States. |
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| The first one observed in nature was the antielectron, not the antiproton. |
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| For example the antielectron, the positon, and the electron turn in direction opposite, and the experiment showed that, if they met themselve, their rotations cancelled and they were transformed into photons, 2 gamma rays. |
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| Also, we can define the strange antimatter as formed by a large number of antiquarks bound together with an antielectron around them. |
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| The production of atoms of antihydrogen, which consists of an antielectron bound to an antiproton, provided an important tool for looking for any differences between particles and their antiparticles. |
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| Yet the next year the antielectron was discovered in cosmic rays. |
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