Ethics and values Statement
03.3 Perpetual Motion Machines
Adopted by the Council on April 04, 2003
Revision Approved by the Council on November 09, 2018
The American Physical Society deplores attempts to mislead and defraud the public based on claims of perpetual motion machines or sources of unlimited useful energy unsubstantiated by experimentally tested established physical principles.
The review process for any statement may be started at any time if deemed necessary by the Panel on Public Affairs, and at least once every five years.