Subject: Appreciation Date: Thu, 1 Oct 1998 22:50:42 +0800 From: "HUI Man-yan Mark" <> To: <> I am a high school physics teacher in Hong Kong. I happened to visit your site and found that your simulation of physics phenomena and concepts are extremely useful. I intend to use them for my lessons. I anticipate that my students will enjoy them very much. Thanks for your great work for a school teacher like me. Mark HUI 1-10-1998