Open Source Physics programs and source code are released Open Source code under the GNU General Public License (GPL). The GPL license requires that any program or code library that incorporates any portion of the OSP library must also be released under the terms of the GNU GPL license. See: < http://www.gnu.org/licenses/gpl.html >.
Narrative text (such as textbooks, articles, or on-line curricular material) that uses OSP programs may, however, be copyrighted. You must contact the narrative author or publisher for permission to use these narratives.
I have used your Atwood Machine model and have been able to modify its characteristic to suit my purpose of being able to create a computer simulation for my perpetual prime mover machine. Am I violating something here?
> Re: How can I use Open Source Physics programs? > > Open Source Physics programs and source code are released > Open Source code under the GNU General Public License > (GPL). The GPL license requires that any program or > code library that incorporates any portion of the > OSP library must also be released under the terms > of the GNU GPL license. See: < http://www.gnu.org/licenses/gpl.html > >. > > Narrative text (such as textbooks, articles, or > on-line curricular material) that uses OSP programs > may, however, be copyrighted. You must contact the > narrative author or publisher for permission to use > these narratives.