using System;

namespace Science.Physics.GeneralPhysics
{
	/// <summary>
	/// Summary description for Constant.
	/// </summary>
	public class Constant
	{
		public Constant()
		{
		}		
		/// <summary>
		/// Conventional Acceleration of Gravity
		/// </summary>
		public static double AccelerationOfGravity  // g
		{
			get{return 9.8;}
		}
		public static double AvogadroConstant  // N_A
		{
			get{return 6.02E23;}			
		}
		public static double GravitationalConstant  // G
		{
			get{return 6.673E-11;}
		}		
		public static double ElementaryCharge  // e
		{
			get{return 1.6E-19;}			
		}
		public static double CoulombConstant  // k
		{
			get{return 8.9875E9;}
		}
		public static double PermittivityOfFreeSpace  // \epsilon_0
		{
			get{return 8.854187817E-12;}			
		}	
		public static double PermeabilityOfFreeSpace  // \mu_0
		{
			get{return 4.0*Math.PI*1.0E-7;}			
		}
		public static double UniversalGasConstant  // R
		{
			get{return 8.314;}
		}
		public static double BolzmannConstant  // k_B
		{
			get{return 1.380650324E-23;}
		}
		public static double SpeedOfLightInVacuum  // c
		{
			get{return 299792458.0;}			
		}	
		public static double PlankConstant  // h
		{
			get{return 6.6260687652E-34;}			
		} 
		public static double ElectronMass   // m_e
		{
			get{return 9.1093818872E-31;}
		}
		public static double ProtonMass    // m_p
		{
			get{return 1.67262E-27;}
		}
		public static double NeutronMass   // m_n
		{
			get{return 1.67493E-27;}
		}
		public static double RydbergConstant   // R
		{
			get{return 1.0973732E7;}
		}
		public static double SpecificHeatOfWater   // c_w
		{
			get{return 4186.0;}
		}
		public static double HubbleConstantLightYear  // H
		{
			get{return 17.0E-3;}
		}
    }
}