<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>As we discussed in the meeting, I added a wiki page discussing a file format for 2D physics scenes: <a href="http://wiki.laptop.org/go/Physics_File_Format">http://wiki.laptop.org/go/Physics_File_Format</a></div><div>and a few topics for discussion here:</div><div><a href="http://wiki.laptop.org/go/Talk:Physics_File_Format">http://wiki.laptop.org/go/Talk:Physics_File_Format</a></div><div><br></div><div>-josh</div><div><br></div><div>On Jul 10, 2008, at 5:15 PM, Samuel Klein wrote:</div><div><br class="Apple-interchange-newline"><blockquote type="cite">Brian, that was a great meeting; thanks for setting it up. <br><br>I put some quick meeting notes here:<br> <a href="http://wiki.laptop.org/go/Physics_meetings/July_10%2C_2008">http://wiki.laptop.org/go/Physics_meetings/July_10%2C_2008</a><br> <br>And I wonder if there are existing physics-tool development lists worth pinging for a future meeting. They could provide their own speed and compatibility tests... and I'd like to hear what people like the linerider devs think about XO variants. (that's much less than full mechanics, but it does rely on a gravity engine and touch on what's a good extensible interchange format for scene design)<br> <br>Cheers,<br>SJ<br><br><div class="gmail_quote">On Thu, Jul 10, 2008 at 7:58 PM, Edward Cherlin <<a href="mailto:echerlin@gmail.com">echerlin@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="Ih2E3d">On Thu, Jul 10, 2008 at 4:20 PM, Yoshiki Ohshima <<a href="mailto:yoshiki@vpri.org">yoshiki@vpri.org</a>> wrote:<br> >> So we could simulate a pendulum or a Newton's cradle? How do you<br> >> handle collisions?<br> ><br> > A pendulum for sure, but my version of three pendulums putting<br> > together doesn't show the expected behavior. The elasticity isn't<br> > right for it, it seems.<br> <br> </div>What does it do? Can you get it to tell you what values of momentum<br> and energy are passed through from balls 1-->2-->3?<br> <br> I once used a 5-ball Newton's cradle to do a rough simulation of<br> particle-mediated forces.<br> <br> Have you tried two pendula hanging from a horizontal string? Do you<br> get the expected transfer of energy back and forth?<br> <div class="Ih2E3d"><br> > -- Yoshiki<br> > _______________________________________________<br> > Games mailing list<br> > <a href="mailto:Games@lists.laptop.org">Games@lists.laptop.org</a><br> > <a href="http://lists.laptop.org/listinfo/games" target="_blank">http://lists.laptop.org/listinfo/games</a><br> ><br> <br> <br> <br> </div><div class="Ih2E3d">--<br> Edward Cherlin<br> End Poverty at a Profit by teaching children business<br> <a href="http://www.EarthTreasury.org/" target="_blank">http://www.EarthTreasury.org/</a><br> "The best way to predict the future is to invent it."--Alan Kay<br> _______________________________________________<br> </div><div><div></div><div class="Wj3C7c">Games mailing list<br> <a href="mailto:Games@lists.laptop.org">Games@lists.laptop.org</a><br> <a href="http://lists.laptop.org/listinfo/games" target="_blank">http://lists.laptop.org/listinfo/games</a><br> </div></div></blockquote></div><br> _______________________________________________<br>Games mailing list<br><a href="mailto:Games@lists.laptop.org">Games@lists.laptop.org</a><br>http://lists.laptop.org/listinfo/games<br></blockquote></div><br></body></html>