001/*
002 * International System of Units (SI)
003 * Copyright (c) 2005-2019, Jean-Marie Dautelle, Werner Keil and others.
004 *
005 * All rights reserved.
006 *
007 * Redistribution and use in source and binary forms, with or without modification,
008 * are permitted provided that the following conditions are met:
009 *
010 * 1. Redistributions of source code must retain the above copyright notice,
011 *    this list of conditions and the following disclaimer.
012 *
013 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
014 *    and the following disclaimer in the documentation and/or other materials provided with the distribution.
015 *
016 * 3. Neither the name of JSR-385, Units of Measurement nor the names of their contributors may be used to
017 *    endorse or promote products derived from this software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
021 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
023 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
026 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
028 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package si.uom.quantity;
031
032import javax.measure.Quantity;
033
034
035/**
036 * Moment of a force.
037 * The system unit for this quantity is "N.m" (Newton-Metre).
038 *
039 * <p><b>Note:</b> The Newton-metre ("N.m") is also a way of expressing a Joule
040 * (unit of energy). However, torque is not energy. So, to avoid confusion, we
041 * will use the units "N.m" for torque and not "J". This distinction occurs due
042 * to the scalar nature of energy and the vector nature of torque.</p>
043 *
044 * @author <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
045 * @author <a href="mailto:units@catmedia.us">Werner Keil</a>
046 * @version 1.2.1
047 *
048 * @see Force
049 * @see Length
050 */
051public interface Torque extends Quantity<Torque> {
052}