Based on the novel by Catherine Cookson, The Black Candle from 1991 stars Cathy Sandford, Nathaniel Parker, James Gaddas, Denholm Elliott, and Sian Phillips.
Part of the Electronics glossary: In physics, charge, also known as electric charge, electrical charge, or electrostatic charge and symbolized q, is a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons. In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge.
The word charge is often used as a synonym for both the generator of a symmetry, and the conserved quantum number (eigenvalue) of the generator. Thus, letting the upper-case letter Q refer to the generator, one has that [Q, H] = 0 implies that the eigenvalues (lower-case) q are time-invariant: dqdt = 0.