| Positively charged beta particles, the antiparticle of electrons, are called positrons. |
| In particular, every type of particle of which matter is composed has an equal and opposite antiparticle composed of antimatter. |
| Whenever a particle meets its antiparticle counterpart, the two annihilate each other. |
| As every schoolboy knows, if you bring a particle and an antiparticle together, they annihilate each other in a burst of energy. |
| Back in 1928, Dirac had the temerity to take the second solution seriously, and today the beast is a tamed antiparticle known as a positron. |
| The emission of the electron's antiparticle, the positron, is also called beta decay. |
