I learned about this in Psychology class. Whichever way the girl is spinning is your dominant brain. If she turns directions, you use both sides of your brain equally. And if you can get her to turn whichever way you want, you have a lot of control over both sides.
this is so cool
oh my god what is happening
Idk if I like this
i just learned how to turn it left to right, left to right after 1 second intervals. holy shit i must be a genius
EDIT: HOLY SHIT.? I SAW THE FAR LEFT AND THE FAR RIGHT ONES SPINNING IN OPPOSITE DIRECTIONS AT THE SAME TIME. NOW IM LEGIT SCARED
my brain hurts now