Ah, Geoffrey, I remember that wonderful video of yours from the time you first filmed it!
So nice to see it again, thank you!
The following two images are a continuation of how I started the New Year - some fun and something Leonard
Seeing as there has been some discussion here recently about the brain and how/why different people see different things in art I thought I'd post an image I designed for a forum thread some years ago. Some of you may have seen it.
If not, is it a Grecian urn or my mirrored twin or both?
Give your brain a work out with both images below ....

- there's a fight between the black and white.jpg (7.55 KiB) Viewed 1801 times
Also talking about seeing different things (or things differently), I know this image below is familiar to some of you but I still find it fascinating how you can control it's rotation. The brain is such a fascinating thing!
See if you can make the female figure below go one way and then the other by shifting the brain's current!
• If you see this lady turning clockwise, you are supposed to be using your right brain.
• If you see her turning counter-clockwise, you are supposed to be using your left brain.
• Some people can make the lady turn both ways, but most people see her turning only one way.
It is said that only about 15% of people can see and make her move both ways.
(personally I reckon it's about 60%)

- move L&R.gif (204.02 KiB) Viewed 1777 times
there is a war between the left and right.
Have fun - BOTH directions can be done! Her shadow also changes direction with her.