That is a good one!It seems to change patterns after about 15 seconds of focus, wow.
And try looking at it full screen for about a minute, then look at some other objects in your view - a real trip!
(And try looking at it full screen for about a minute, then look at some other objects in your view - a real trip!
tubaman,
Sun 1 Dec 2013, 23:38,
archived)