//! This module provides functions and data structures to model the 1976 US Standard Atmosphere.
use ;
/// The Boltzmann constant.
///
/// Symbol: `k`
///
/// Value: `1.380649 × 10⁻²³ N*m/K`
pub const BOLTZMANN_CONSTANT: f64 = 1.380649e-23; // J/K
/// Represents the US Standard Atmosphere model.