Unfortunately, the video above doesn't really show the effect. When the magnet is dropped in to the tube it doesn't cling to the side; but then it doesn't drop straight through the tube either. In effect it drops at a relatively slow speed, almost defying the laws of gravity.
I'll have more time tommorow to look for mine. I'll re-film it and you'll see more clearly the effect.
"Astrology teaches us one thing and one thing only.... There's one born every minute!" Patrick Moore.