/* $RCSfile$
* $Author$
* $Date$
* $Revision$
*
* Copyright (C) 2002-2007 Egon Willighagen <egonw@users.sf.net>
*
* Contact: cdk-devel@lists.sourceforge.net
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.openscience.cdk;
/**
* An class providing predefined properties of physical constants.
*
* @cdk.keyword physical properties
* @cdk.githash
*/
public class PhysicalConstants {
/**
* Mass of a proton.
*/
public final static double MASS_PROTON = 1.6726485E-27;
/**
* Mass of an electron.
*/
public final static double MASS_ELECTRON = 9.109534E-31;
/**
* Factor for the conversion of Bohr's to Angstrom's.
*/
public static final double BOHR_TO_ANGSTROM = 0.529177249;
}