U+210E "ℎ" Planck Constant Unicode Character

U+210E "ℎ" Planck Constant is a typographic symbol specifically encoded to represent the fundamental physical constant that relates the energy of a photon to its frequency, a cornerstone of quantum mechanics. Unlike a standard italic "h," this dedicated glyph is intended to clearly denote the constant itself in mathematical and scientific notation, preventing ambiguity. Its inclusion in the Unicode standard ensures that this symbol can be reliably and consistently displayed across different digital platforms and fonts, facilitating precise communication in academic literature, equations, and software where the Planck constant must be expressed.