- Charge carrier (Wikipedia)
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.
- Hamal (stars.astro.illinois.edu)
HAMAL (Alpha Arietis). Climbing the eastern sky in northern Autumn, Aries presents a small flat triangle below Andromeda dominated by mid-second-magnitude (2.00) Hamal.
- Hamal (Wikipedia)
Hamal /ˈhæməl/, designated Alpha Arietis (α Arietis, abbreviated Alpha Ari, α Ari), is the brightest star in the northern zodiacal constellation of Aries.
