- In solid state physics, a charge carrier is a particle or quasiparticle that is free to move, carrying an electric charge, especially the particles that carry electric charges in electrical conductors. Examples are electrons, ions and holes. In a conducting medium, an electric field can exert force on these free particles, causing a net motion of the particles through the medium; this is what constitutes an electric current. The electron and the proton are the elementary charge carriers, each carrying one elementary charge (e), of the same magnitude and opposite sign.
- Menkalinan (stars.astro.illinois.edu)
MENKALINAN (Beta Aurigae). Beautifully shaped Auriga, the Charioteer, rides high in northern winter skies, dominated by brilliant Capella at the northwestern corner of the prominent pentagon that makes the figure. Almost immediately to the east lies a mid-second magnitude star, Menkalinan (Men-KAL-in-an), at the northeast corner, the Arabic name meaning “the shoulder of the rein-holder.”