For those who are trying to figure it out I slowed it right down and marked the first and last frames (blue for the first and red for the last) I
think there was 36 frames altogether.
My 9 year old son was blown away. He saw it going clockwise and when I told him to count by 2s he exclaimed "she just changed directions." and then
he said she kept going back and forth. I don't think my 6 year old saw her change although she said she did.
Cha, Ive just been turning it around like some sort of mastermind (in my own mind of course) and partner swears he couldnt see it change... very good
brain exercize!