>Is the phenomenon of wheels appearing to spin backwards related in any way >to the appearance of a horizontal line scrolling upwards on computer >screens when they appear in television footage? > >Curious about that vision thing, > >Kate Bowles >University of Wollongong Yeh, They lock the vertical frame in with the 60 cyles that is always present in your electricity. The 60 cycles of the TV becomes sort of like an echo. This same 60 cylces control those old record players and that's why that rapidly igniting strobe fires as fast as it does. I had one of these muscle vibrators one time while I was watching tv. I put it on the left side of my head and the tv picture stretched like surrealistic, LSD trip as did the large LED Clock I had above the TV, and an image shift. The first thing I thought was the battery vibrator was close to 60 cycles, but then I found out it was just that my brain was loose. 73, Art NE Pa. ---- To signoff SCREEN-L, e-mail [log in to unmask] and put SIGNOFF SCREEN-L in the message. Problems? Contact [log in to unmask]