RealFeedApp The Bridgman formula is omitted from standard textbooks
A new formulation confirms that sound velocity directly determines liquid thermal conductivity, resolving the paradox of the parabolic heat equation.
- Field
- new materials
- What they did
- Researchers reviewed the Bridgman formula, which states that sound velocity in liquids is proportional to their thermal conductivity, and explained its connection to hydrodynamic Euler equations.
- Why it matters
- This helps understand the fundamental paradox of the heat equation and how properties transition from the quantum to the classical regime.
#thermal conductivity#phonons#hydrodynamics#quantum crossover
