Most people have never seen a knight move about in real armor weighing 82 pounds.  The sound of armor moving as a man moves in it is itself a part of the educational experience of hearing a sound that was commonly heard a thousand years ago but never heard by most modern ears.  Children in this brief video clip remark about how the armor sounds.  Although I have taken the sound portion out of this video, video tapes are available of my presentations to students.  See links on this page for ordering tapes of my programs for students of all ages.