Here are some URLs related to Bill Beaty's air threads:
http://amasci.com/weird/unusual/airexp.html http://www.youtube.com/watch?v=-_prcDanfMw http://www.youtube.com/watch?v=iLG8gKb-lyk http://www.youtube.com/watch?v=CKvLUL8f4LU http://amasci.com/freenrg/iontest.html Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/